Merge pull request #11 from acwrenn53/exp/groot-n17-logit-parity

GR00T N1.7 logit parity
This commit is contained in:
Kartik
2026-06-12 10:14:05 +02:00
committed by GitHub
13 changed files with 487 additions and 2041 deletions
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@@ -28,3 +28,77 @@ Hugging Face Models:
- GR00T N1.7: https://huggingface.co/nvidia/GR00T-N1.7-3B
- GR00T N1.7 LIBERO checkpoints: https://huggingface.co/nvidia/GR00T-N1.7-LIBERO
## Original-vs-LeRobot parity test
`tests/policies/groot/test_groot_vs_original.py` verifies that this LeRobot
reimplementation of GR00T N1.7 (Qwen3-VL backbone + flow-matching action head)
produces the **same raw model output** (`get_action(...)["action_pred"]`, the
normalized flow-matching prediction) as NVIDIA's original `gr00t` package, given
byte-identical pre-processed inputs and the same flow-matching seed. It is
parametrized over every embodiment tag present in the checkpoint.
### Why two environments
The original `gr00t` package pins `transformers==4.57.3` (Python 3.10); this
integration requires `transformers>=5.x` (Qwen3-VL). Under 5.x, `PretrainedConfig`
is itself a defaulted dataclass, so the original config dataclasses fail to import
(`non-default argument follows default argument`). The two implementations therefore
**cannot be imported in the same Python process**.
So the test uses a **producer / consumer** split across two venvs:
1. **Producer**`tests/policies/groot/utils/dump_original_n1_7.py`, run in the *original*
gr00t venv. For each embodiment it builds dummy inputs generically from the
checkpoint metadata (state dims from `statistics.json`; camera/language keys from
the processor modality configs), runs the original model, and saves the exact
collated inputs + raw `action_pred` to one `.npz` per tag.
2. **Consumer** — the pytest above, run in the *LeRobot* venv. It discovers every
`.npz`, replays the byte-identical inputs through the LeRobot model with the same
seed, and asserts the outputs match.
### Fairness controls
- **Same pre-processed inputs** — the original processor's `input_ids`,
`pixel_values`, `image_grid_thw`, `attention_mask`, `state`, `embodiment_id` are
fed verbatim to the LeRobot model (no re-tokenization / re-normalization).
- **Same precision + attention kernel** — both sides run **fp32 + SDPA**. The
original defaults to `use_flash_attention=True` (flash_attention_2 + bf16); the
producer forces SDPA + fp32. (With the defaults the gap is ~3e-2 — pure
kernel/rounding noise, not an implementation difference.)
- **Same flow-matching seed** — fixed (42) right before sampling on both sides.
### How to run
```bash
# Resolve a local checkpoint (GR00T-N1.7-LIBERO / libero_10)
CKPT=$(python - <<'PY'
import os
from huggingface_hub import snapshot_download
print(os.path.join(snapshot_download("nvidia/GR00T-N1.7-LIBERO",
allow_patterns=["libero_10/*"]), "libero_10"))
PY
)
# 1) Produce the original-side artifacts for all embodiments (original gr00t venv, CUDA)
CUDA_VISIBLE_DEVICES=0 /path/to/Isaac-GR00T/.venv-original/bin/python \
tests/policies/groot/utils/dump_original_n1_7.py \
--ckpt "$CKPT" --out-dir tests/policies/groot/artifacts --device cuda --seed 42
# 2) Run the parity test (LeRobot venv) — one parametrized case per embodiment
CUDA_VISIBLE_DEVICES=0 GROOT_PARITY_DEVICE=cuda \
uv run pytest tests/policies/groot/test_groot_vs_original.py -v -s
```
The `.npz` artifacts are local-only (gitignored, ~69 MB each) and are regenerated by
the producer; they are never committed. The test **skips** (does not fail) on CI or
when the checkpoint / artifacts are absent.
#### Env knobs (all optional)
| Var | Default | Purpose |
|---|---|---|
| `GROOT_N1_7_PARITY_DIR` | `tests/policies/groot/artifacts` | directory of per-tag `.npz` artifacts |
| `GROOT_N1_7_LIBERO_CKPT` | auto (HF cache) | override checkpoint dir |
| `GROOT_PARITY_DEVICE` | `cuda` if available | `cpu` or `cuda` |
| `GROOT_PARITY_ATOL` / `GROOT_PARITY_RTOL` | `1e-3` | comparison tolerance |
@@ -1,54 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import torch
import torch.nn as nn
def swish(x):
return x * torch.sigmoid(x)
class SinusoidalPositionalEncoding(nn.Module):
"""
Produces a sinusoidal encoding of shape (B, T, w)
given timesteps of shape (B, T).
"""
def __init__(self, embedding_dim):
super().__init__()
self.embedding_dim = embedding_dim
def forward(self, timesteps):
# timesteps: shape (B, T)
# We'll compute sin/cos frequencies across dim T
timesteps = timesteps.float() # ensure float
b, t = timesteps.shape
device = timesteps.device
half_dim = self.embedding_dim // 2
# typical log space frequencies for sinusoidal encoding
exponent = -torch.arange(half_dim, dtype=torch.float, device=device) * (
torch.log(torch.tensor(10000.0)) / half_dim
)
# Expand timesteps to (B, T, 1) then multiply
freqs = timesteps.unsqueeze(-1) * exponent.exp() # (B, T, half_dim)
sin = torch.sin(freqs)
cos = torch.cos(freqs)
enc = torch.cat([sin, cos], dim=-1) # (B, T, w)
return enc
@@ -1,408 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from dataclasses import field
from typing import TYPE_CHECKING
import torch
import torch.nn.functional as F # noqa: N812
from torch import nn
from torch.distributions import Beta
from lerobot.utils.import_utils import _transformers_available
# Conditional import for type checking and lazy loading
if TYPE_CHECKING or _transformers_available:
from transformers import PretrainedConfig
from transformers.feature_extraction_utils import BatchFeature
else:
PretrainedConfig = object
BatchFeature = None
from .action_encoder import (
SinusoidalPositionalEncoding,
swish,
)
from .cross_attention_dit import DiT, SelfAttentionTransformer
class CategorySpecificLinear(nn.Module):
def __init__(self, num_categories, input_dim, hidden_dim):
super().__init__()
self.num_categories = num_categories
# For each category, we have separate weights and biases.
self.W = nn.Parameter(0.02 * torch.randn(num_categories, input_dim, hidden_dim))
self.b = nn.Parameter(torch.zeros(num_categories, hidden_dim))
def forward(self, x, cat_ids):
selected_w = self.W[cat_ids]
selected_b = self.b[cat_ids]
return torch.bmm(x, selected_w) + selected_b.unsqueeze(1)
class CategorySpecificMLP(nn.Module):
def __init__(self, num_categories, input_dim, hidden_dim, output_dim):
super().__init__()
self.num_categories = num_categories
self.layer1 = CategorySpecificLinear(num_categories, input_dim, hidden_dim)
self.layer2 = CategorySpecificLinear(num_categories, hidden_dim, output_dim)
def forward(self, x, cat_ids):
hidden = F.relu(self.layer1(x, cat_ids))
return self.layer2(hidden, cat_ids)
class MultiEmbodimentActionEncoder(nn.Module):
def __init__(self, action_dim, hidden_size, num_embodiments):
super().__init__()
self.hidden_size = hidden_size
self.num_embodiments = num_embodiments
# W1: R^{w x d}, W2: R^{w x 2w}, W3: R^{w x w}
self.W1 = CategorySpecificLinear(num_embodiments, action_dim, hidden_size) # (d -> w)
self.W2 = CategorySpecificLinear(num_embodiments, 2 * hidden_size, hidden_size) # (2w -> w)
self.W3 = CategorySpecificLinear(num_embodiments, hidden_size, hidden_size) # (w -> w)
self.pos_encoding = SinusoidalPositionalEncoding(hidden_size)
def forward(self, actions, timesteps, cat_ids):
"""
actions: shape (B, T, action_dim)
timesteps: shape (B,) -- a single scalar per batch item
cat_ids: shape (B,)
returns: shape (B, T, hidden_size)
"""
b, t, _ = actions.shape
# 1) Expand each batch's single scalar time 'tau' across all T steps
# so that shape => (B, T)
# e.g. if timesteps is (B,), replicate across T
if timesteps.dim() == 1 and timesteps.shape[0] == b:
# shape (B,) => (B,T)
timesteps = timesteps.unsqueeze(1).expand(-1, t)
else:
raise ValueError("Expected `timesteps` to have shape (B,) so we can replicate across T.")
# 2) Standard action MLP step for shape => (B, T, w)
a_emb = self.W1(actions, cat_ids)
# 3) Get the sinusoidal encoding (B, T, w)
tau_emb = self.pos_encoding(timesteps).to(dtype=a_emb.dtype)
# 4) Concat along last dim => (B, T, 2w), then W2 => (B, T, w), swish
x = torch.cat([a_emb, tau_emb], dim=-1)
x = swish(self.W2(x, cat_ids))
# 5) Finally W3 => (B, T, w)
x = self.W3(x, cat_ids)
return x
class FlowmatchingActionHeadConfig(PretrainedConfig):
"""Flow-matching action head used by GR00T backbones."""
add_pos_embed: bool = field(default=True, metadata={"help": "Whether to add positional embedding"})
model_dtype: str = field(default="float32", metadata={"help": "Model data type."})
diffusion_model_cfg: dict = field(default=None, metadata={"help": "Diffusion model configuration."})
input_embedding_dim: int = field(default=1536, metadata={"help": "Input embedding channel dimension."})
backbone_embedding_dim: int = field(
default=1536, metadata={"help": "Backbone embedding channel dimension."}
)
hidden_size: int = field(default=1024, metadata={"help": "Input embedding dimension."})
max_seq_len: int = field(default=1024, metadata={"help": "Maximum Sequence Length"})
action_dim: int = field(default=None, metadata={"help": "Action dimension."})
action_horizon: int = field(default=None, metadata={"help": "Action horizon."})
noise_beta_alpha: float = field(default=1.5, metadata={"help": ""})
noise_beta_beta: float = field(default=1.0, metadata={"help": ""})
noise_s: float = field(default=0.999, metadata={"help": "Flow matching noise Beta distribution s."})
num_timestep_buckets: int = field(
default=1000, metadata={"help": "Number of timestep discretization buckets."}
)
num_inference_timesteps: int = field(
default=None,
metadata={"help": "Number of inference steps for noise diffusion."},
)
max_num_embodiments: int = field(default=32, metadata={"help": "Number of embodiments."})
tune_projector: bool = field(default=True, metadata={"help": "Whether to tune the projector."})
tune_diffusion_model: bool = field(
default=True, metadata={"help": "Whether to tune the diffusion model."}
)
load_pretrained_det_decode_layer_path: str = field(
default=None, metadata={"help": "Path to pretrained detection model."}
)
detection_coeff: float = field(default=1.0, metadata={"help": "Detection coefficient."})
freeze_decode_layer: bool = field(default=False)
expand_batch: int = field(default=None)
use_vlln: bool = field(default=True)
vl_self_attention_cfg: dict = field(default=None)
num_target_vision_tokens: int = field(default=32, metadata={"help": "Number of target vision tokens."})
def __init__(self, **kwargs):
super().__init__(**kwargs)
for key, value in kwargs.items():
setattr(self, key, value)
class FlowmatchingActionHead(nn.Module):
config_class = FlowmatchingActionHeadConfig
supports_gradient_checkpointing = True
def __init__(
self,
config: FlowmatchingActionHeadConfig,
):
super().__init__()
self.hidden_size = config.hidden_size
self.input_embedding_dim = config.input_embedding_dim
self.model = DiT(**config.diffusion_model_cfg)
self.action_dim = config.action_dim
self.action_horizon = config.action_horizon
self.num_inference_timesteps = config.num_inference_timesteps
self.state_encoder = CategorySpecificMLP(
num_categories=config.max_num_embodiments,
input_dim=config.max_state_dim,
hidden_dim=self.hidden_size,
output_dim=self.input_embedding_dim,
)
self.action_encoder = MultiEmbodimentActionEncoder(
action_dim=config.action_dim,
hidden_size=self.input_embedding_dim,
num_embodiments=config.max_num_embodiments,
)
self.action_decoder = CategorySpecificMLP(
num_categories=config.max_num_embodiments,
input_dim=self.hidden_size,
hidden_dim=self.hidden_size,
output_dim=self.action_dim,
)
self.future_tokens = nn.Embedding(config.num_target_vision_tokens, self.input_embedding_dim)
nn.init.normal_(self.future_tokens.weight, mean=0.0, std=0.02)
self.vlln = nn.LayerNorm(config.backbone_embedding_dim) if config.use_vlln else nn.Identity()
self.vl_self_attention = (
SelfAttentionTransformer(**config.vl_self_attention_cfg) if config.use_vlln else nn.Identity()
)
if config.add_pos_embed:
self.position_embedding = nn.Embedding(config.max_seq_len, self.input_embedding_dim)
nn.init.normal_(self.position_embedding.weight, mean=0.0, std=0.02)
self._noise_beta_alpha = config.noise_beta_alpha
self._noise_beta_beta = config.noise_beta_beta
self._beta_dist = None
self.num_timestep_buckets = config.num_timestep_buckets
self.config = config
self.set_trainable_parameters(config.tune_projector, config.tune_diffusion_model)
def set_trainable_parameters(self, tune_projector: bool, tune_diffusion_model: bool):
self.tune_projector = tune_projector
self.tune_diffusion_model = tune_diffusion_model
for p in self.parameters():
p.requires_grad = True
if not tune_projector:
self.state_encoder.requires_grad_(False)
self.action_encoder.requires_grad_(False)
self.action_decoder.requires_grad_(False)
if self.config.add_pos_embed:
self.position_embedding.requires_grad_(False)
if not tune_diffusion_model:
self.model.requires_grad_(False)
print(f"Tune action head projector: {self.tune_projector}")
print(f"Tune action head diffusion model: {self.tune_diffusion_model}")
# Check if any parameters are still trainable. If not, print a warning.
if not tune_projector and not tune_diffusion_model:
for name, p in self.named_parameters():
if p.requires_grad:
print(f"Action head trainable parameter: {name}")
if not any(p.requires_grad for p in self.parameters()):
print("Warning: No action head trainable parameters found.")
def set_frozen_modules_to_eval_mode(self):
"""
Huggingface will call model.train() at each training_step. To ensure
the expected behaviors for modules like dropout, batchnorm, etc., we
need to call model.eval() for the frozen modules.
"""
if self.training:
if not self.tune_projector:
self.state_encoder.eval()
self.action_encoder.eval()
self.action_decoder.eval()
if self.config.add_pos_embed:
self.position_embedding.eval()
if not self.tune_diffusion_model:
self.model.eval()
def sample_time(self, batch_size, device, dtype):
if self._beta_dist is None:
self._beta_dist = Beta(self._noise_beta_alpha, self._noise_beta_beta, validate_args=False)
sample = self._beta_dist.sample([batch_size]).to(device, dtype=dtype)
return (self.config.noise_s - sample) / self.config.noise_s
def prepare_input(self, batch: dict) -> BatchFeature:
return BatchFeature(data=batch)
def process_backbone_output(self, backbone_output: BatchFeature) -> BatchFeature:
backbone_features = backbone_output["backbone_features"]
backbone_features = self.vlln(backbone_features)
backbone_features = self.vl_self_attention(backbone_features)
backbone_output["backbone_features"] = backbone_features
return backbone_output
def forward(self, backbone_output: BatchFeature, action_input: BatchFeature) -> BatchFeature:
# Set frozen modules to eval
self.set_frozen_modules_to_eval_mode()
backbone_output = self.process_backbone_output(backbone_output)
if self.config.expand_batch is not None:
for k, v in backbone_output.items():
ndim = len(v.shape)
factors = [self.config.expand_batch]
while len(factors) < ndim:
factors.append(1)
factors = tuple(factors)
expanded = v.repeat(*factors)
backbone_output[k] = expanded
for k, v in action_input.items():
ndim = len(v.shape)
factors = [self.config.expand_batch]
while len(factors) < ndim:
factors.append(1)
factors = tuple(factors)
expanded = v.repeat(*factors)
action_input[k] = expanded
# Get vision and language embeddings.
vl_embs = backbone_output.backbone_features
device = vl_embs.device
# Get embodiment ID.
embodiment_id = action_input.embodiment_id
# Embed state.
state_features = self.state_encoder(action_input.state, embodiment_id)
# Embed noised action trajectory.
actions = action_input.action
noise = torch.randn(actions.shape, device=actions.device, dtype=actions.dtype)
t = self.sample_time(actions.shape[0], device=actions.device, dtype=actions.dtype)
t = t[:, None, None] # shape (B,1,1) for broadcast
noisy_trajectory = (1 - t) * noise + t * actions
velocity = actions - noise
# Convert (continuous) t -> discrete if needed
t_discretized = (t[:, 0, 0] * self.num_timestep_buckets).long()
action_features = self.action_encoder(noisy_trajectory, t_discretized, embodiment_id)
# Maybe add position embedding.
if self.config.add_pos_embed:
pos_ids = torch.arange(action_features.shape[1], dtype=torch.long, device=device)
pos_embs = self.position_embedding(pos_ids).unsqueeze(0)
action_features = action_features + pos_embs
# Join vision, language, state and action embedding along sequence dimension.
future_tokens = self.future_tokens.weight.unsqueeze(0).expand(vl_embs.shape[0], -1, -1)
sa_embs = torch.cat((state_features, future_tokens, action_features), dim=1)
vl_attn_mask = backbone_output.backbone_attention_mask
model_output = self.model(
hidden_states=sa_embs,
encoder_hidden_states=vl_embs,
encoder_attention_mask=vl_attn_mask,
timestep=t_discretized,
return_all_hidden_states=False, # NOTE (YL): not using flare now
)
pred = self.action_decoder(model_output, embodiment_id)
pred_actions = pred[:, -actions.shape[1] :]
# Slice out only the action portion of pred and target.
action_mask = action_input.action_mask
loss = F.mse_loss(pred_actions, velocity, reduction="none") * action_mask
loss = loss.sum() / action_mask.sum()
output_dict = {
"loss": loss,
}
return BatchFeature(data=output_dict)
@torch.no_grad()
def get_action(self, backbone_output: BatchFeature, action_input: BatchFeature) -> BatchFeature:
backbone_output = self.process_backbone_output(backbone_output)
# Get vision and language embeddings.
vl_embs = backbone_output.backbone_features
embodiment_id = action_input.embodiment_id
# Embed state.
state_features = self.state_encoder(action_input.state, embodiment_id)
# Set initial actions as the sampled noise.
batch_size = vl_embs.shape[0]
device = vl_embs.device
actions = torch.randn(
size=(batch_size, self.config.action_horizon, self.config.action_dim),
dtype=vl_embs.dtype,
device=device,
)
num_steps = self.num_inference_timesteps
dt = 1.0 / num_steps
# Run denoising steps.
for t in range(num_steps):
t_cont = t / float(num_steps) # e.g. goes 0, 1/N, 2/N, ...
t_discretized = int(t_cont * self.num_timestep_buckets)
# Embed noised action trajectory.
timesteps_tensor = torch.full(size=(batch_size,), fill_value=t_discretized, device=device)
action_features = self.action_encoder(actions, timesteps_tensor, embodiment_id)
# Maybe add position embedding.
if self.config.add_pos_embed:
pos_ids = torch.arange(action_features.shape[1], dtype=torch.long, device=device)
pos_embs = self.position_embedding(pos_ids).unsqueeze(0)
action_features = action_features + pos_embs
# Join vision, language, state and action embedding along sequence dimension.
future_tokens = self.future_tokens.weight.unsqueeze(0).expand(vl_embs.shape[0], -1, -1)
sa_embs = torch.cat((state_features, future_tokens, action_features), dim=1)
# Run model forward.
model_output = self.model(
hidden_states=sa_embs,
encoder_hidden_states=vl_embs,
timestep=timesteps_tensor,
)
pred = self.action_decoder(model_output, embodiment_id)
pred_velocity = pred[:, -self.action_horizon :]
# Update actions using euler integration.
actions = actions + dt * pred_velocity
return BatchFeature(data={"action_pred": actions})
@property
def device(self):
return next(iter(self.parameters())).device
@property
def dtype(self):
return next(iter(self.parameters())).dtype
@@ -1,135 +0,0 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import copy
from transformers.configuration_utils import PretrainedConfig
from transformers.models.llama.configuration_llama import LlamaConfig
from transformers.models.qwen2.configuration_qwen2 import Qwen2Config
from transformers.models.qwen3.configuration_qwen3 import Qwen3Config
from transformers.models.siglip.configuration_siglip import SiglipVisionConfig
from transformers.utils import logging
logger = logging.get_logger(__name__)
class Eagle25VLConfig(PretrainedConfig):
model_type = "eagle_2_5_vl"
is_composition = True
sub_configs = {"vision_config": SiglipVisionConfig, "text_config": Qwen2Config}
def __init__(
self,
vision_config=None,
text_config=None,
use_backbone_lora=0,
use_llm_lora=0,
pad2square=False,
select_layer=-4,
force_image_size=None,
downsample_ratio=0.5,
template=None,
dynamic_image_size=False,
use_thumbnail=False,
loss_version="v1",
min_dynamic_tiles=1,
max_dynamic_tiles=6,
mlp_checkpoint=False,
initializer_range=0.02,
_attn_implementation="flash_attention_2",
_attn_implementation_autoset=False,
llm_config=None,
image_token_index=None,
use_pixel_shuffle=True,
mlp_connector_layers=2,
**kwargs,
):
super().__init__(**kwargs)
if vision_config is None:
vision_config = {"model_type": "siglip_vision_model"}
logger.info("vision_config is None. Initializing the InternVisionConfig with default values.")
if text_config is None:
text_config = {"architectures": ["Qwen2ForCausalLM"]}
logger.info(
"text_config is None. Initializing the LlamaConfig config with default values (`LlamaConfig`)."
)
if vision_config["model_type"] == "siglip_vision_model":
self.vision_config = SiglipVisionConfig(**vision_config)
else:
raise ValueError("Unsupported model_type: {}".format(vision_config["model_type"]))
if text_config["architectures"][0] == "LlamaForCausalLM":
self.text_config = LlamaConfig(**text_config)
elif text_config["architectures"][0] == "Qwen2ForCausalLM":
self.text_config = Qwen2Config(**text_config)
elif text_config["architectures"][0] == "Qwen3ForCausalLM":
self.text_config = Qwen3Config(**text_config)
else:
raise ValueError("Unsupported architecture: {}".format(text_config["architectures"][0]))
self.use_backbone_lora = use_backbone_lora
self.use_llm_lora = use_llm_lora
self.mlp_checkpoint = mlp_checkpoint
self.pad2square = pad2square
self.select_layer = select_layer
self.force_image_size = force_image_size
self.downsample_ratio = downsample_ratio
self.template = template
self.dynamic_image_size = dynamic_image_size
self.use_thumbnail = use_thumbnail
self.loss_version = loss_version
self.initializer_range = initializer_range
self.min_dynamic_tiles = min_dynamic_tiles
self.max_dynamic_tiles = max_dynamic_tiles
self.tie_word_embeddings = self.text_config.tie_word_embeddings
self._attn_implementation = _attn_implementation
self._attn_implementation_autoset = _attn_implementation_autoset
self.image_token_index = image_token_index
self.use_pixel_shuffle = use_pixel_shuffle
self.mlp_connector_layers = mlp_connector_layers
logger.info(f"min_dynamic_tiles: {self.min_dynamic_tiles}")
logger.info(f"max_dynamic_tiles: {self.max_dynamic_tiles}")
def to_dict(self):
"""
Serializes this instance to a Python dictionary. Override the default [`~PretrainedConfig.to_dict`].
Returns:
`Dict[str, any]`: Dictionary of all the attributes that make up this configuration instance,
"""
output = copy.deepcopy(self.__dict__)
output["vision_config"] = self.vision_config.to_dict()
output["text_config"] = self.text_config.to_dict()
output["model_type"] = self.__class__.model_type
output["use_backbone_lora"] = self.use_backbone_lora
output["use_llm_lora"] = self.use_llm_lora
output["pad2square"] = self.pad2square
output["select_layer"] = self.select_layer
output["force_image_size"] = self.force_image_size
output["downsample_ratio"] = self.downsample_ratio
output["template"] = self.template
output["dynamic_image_size"] = self.dynamic_image_size
output["use_thumbnail"] = self.use_thumbnail
output["min_dynamic_tiles"] = self.min_dynamic_tiles
output["max_dynamic_tiles"] = self.max_dynamic_tiles
output["tie_word_embeddings"] = self.tie_word_embeddings
output["_attn_implementation"] = self._attn_implementation
output["_attn_implementation_autoset"] = self._attn_implementation_autoset
output["use_pixel_shuffle"] = self.use_pixel_shuffle
output["mlp_connector_layers"] = self.mlp_connector_layers
return output
@@ -1,503 +0,0 @@
# --------------------------------------------------------
# NVIDIA
# Copyright (c) 2025 NVIDIA
# Licensed under The MIT License [see LICENSE for details]
# --------------------------------------------------------
from __future__ import annotations
# copy from https://github.com/huggingface/transformers/blob/main/src/transformers/models/llava_onevision/image_processing_llava_onevision_fast.py
from transformers.image_processing_utils import (
BatchFeature,
get_patch_output_size,
)
from transformers.image_processing_utils_fast import (
BaseImageProcessorFast,
ImagesKwargs,
group_images_by_shape,
reorder_images,
)
from transformers.image_utils import (
IMAGENET_STANDARD_MEAN, # 0.5, 0.5, 0.5
IMAGENET_STANDARD_STD, # 0.5, 0.5, 0.5
ChannelDimension,
ImageInput,
PILImageResampling,
SizeDict,
get_image_size,
make_flat_list_of_images,
validate_kwargs,
)
from transformers.processing_utils import Unpack
from transformers.utils import (
TensorType,
add_start_docstrings,
is_torch_available,
is_torchvision_v2_available,
)
from transformers.video_utils import VideoInput
if is_torch_available():
import torch
if is_torchvision_v2_available():
from torchvision.transforms.v2 import functional as F # noqa: N812
from transformers.image_utils import pil_torch_interpolation_mapping
else:
from torchvision.transforms import functional as F # noqa: N812
def crop(img: torch.Tensor, left: int, top: int, right: int, bottom: int) -> torch.Tensor:
"""Crop the given numpy array.
Args:
img (torch.Tensor): Image to be cropped. Format should be (C, H, W).
left (int): The left coordinate of the crop box.
top (int): The top coordinate of the crop box.
right (int): The right coordinate of the crop box.
bottom (int): The bottom coordinate of the crop box.
Returns:
torch.Tensor: Cropped image.
"""
if not isinstance(img, torch.Tensor):
raise TypeError(f"img should be torch.Tensor. Got {type(img)}")
if img.ndim not in [2, 3]:
raise ValueError(f"Image should have 2 or 3 dimensions. Got {img.ndim}")
img_height = img.shape[1]
img_width = img.shape[2]
if top < 0 or left < 0 or bottom > img_height or right > img_width:
raise ValueError("Crop coordinates out of bounds")
if top >= bottom or left >= right:
raise ValueError("Invalid crop coordinates")
return img[:, top:bottom, left:right]
class Eagle25VLFastImageProcessorKwargs(ImagesKwargs):
max_dynamic_tiles: int | None
min_dynamic_tiles: int | None
use_thumbnail: bool | None
pad_during_tiling: bool | None
do_pad: bool | None
@add_start_docstrings(
"Constructs a fast ConvNeXT image processor. Based on [`SiglipImageProcessor`] with incorporation of processing each video frame.",
# BASE_IMAGE_PROCESSOR_FAST_DOCSTRING, TODO: this was depreciated from transformers remove!
"""
image_grid_pinpoints (`List[List[int]]`, *optional*):
A list of possible resolutions to use for processing high resolution images. The best resolution is selected
based on the original size of the image. Can be overridden by `image_grid_pinpoints` in the `preprocess`
method. Not used for processing videos.
do_pad (`bool`, *optional*):
Whether to pad the image. If `True`, will pad the patch dimension of the images in the batch to the largest
number of patches in the batch. Padding will be applied to the bottom and right with zeros.
""",
)
class Eagle25VLImageProcessorFast(BaseImageProcessorFast):
resample = PILImageResampling.BICUBIC
image_mean = IMAGENET_STANDARD_MEAN
image_std = IMAGENET_STANDARD_STD
size = {"height": 448, "width": 448}
default_to_square = False
crop_size = None
do_resize = True
do_center_crop = None
do_rescale = True
do_normalize = True
do_convert_rgb = True
do_pad = True
max_dynamic_tiles = 12
min_dynamic_tiles = 1
use_thumbnail = True
pad_during_tiling = False
valid_kwargs = Eagle25VLFastImageProcessorKwargs
model_input_names = ["pixel_values_videos"]
def __init__(self, **kwargs: Unpack[Eagle25VLFastImageProcessorKwargs]):
super().__init__(**kwargs)
@add_start_docstrings(
# BASE_IMAGE_PROCESSOR_FAST_DOCSTRING_PREPROCESS, TODO: this was depreciated from transformers remove!
"""
max_dynamic_tiles (`int`, *optional*):
The maximum number of dynamic tiles to use for processing high resolution images.
min_dynamic_tiles (`int`, *optional*):
The minimum number of dynamic tiles to use for processing high resolution images.
use_thumbnail (`bool`, *optional*):
Whether to use a thumbnail for processing high resolution images.
pad_during_tiling (`bool`, *optional*):
Whether to pad the image during tiling.
do_pad (`bool`, *optional*):
Whether to pad the image. If `True`, will pad the patch dimension of the images in the batch to the largest
number of patches in the batch. Padding will be applied to the bottom and right with zeros.
""",
)
# NOTE(YL): we will overload the preprocess method to add the image_flags
# def preprocess(
# self, images: ImageInput, **kwargs: Unpack[Eagle25VLFastImageProcessorKwargs]
# ) -> BatchFeature:
# return super().preprocess(images, **kwargs)
def _prepare_images_structure(
self,
images: ImageInput,
expected_ndims: int = 3,
) -> ImageInput:
"""
Prepare the images structure for processing.
Args:
images (`ImageInput`):
The input images to process.
expected_ndims (`int`, *optional*, defaults to 3):
Expected number of dimensions for the images (added for transformers >=4.53.0 compatibility).
Returns:
`ImageInput`: The images with a valid nesting.
"""
return make_flat_list_of_images(images)
def _resize_for_patching(
self,
image: torch.Tensor,
target_resolution: tuple,
interpolation: F.InterpolationMode,
input_data_format: ChannelDimension,
) -> torch.Tensor:
"""
Resizes an image to a target resolution while maintaining aspect ratio.
Args:
image ("torch.Tensor"):
The input image.
target_resolution (tuple):
The target resolution (height, width) of the image.
interpolation (`InterpolationMode`):
Resampling filter to use if resizing the image.
input_data_format (`ChannelDimension` or `str`):
The channel dimension format of the input image.
Returns:
"torch.Tensor": The resized and padded image.
"""
new_height, new_width = get_patch_output_size(image, target_resolution, input_data_format)
# Resize the image
resized_image = F.resize(image, (new_height, new_width), interpolation=interpolation)
return resized_image
def find_closest_aspect_ratio(self, aspect_ratio, target_ratios, width, height, image_size):
"""
previous version mainly focus on ratio.
We also consider area ratio here.
"""
best_factor = float("-inf")
best_ratio = (1, 1)
area = width * height
for ratio in target_ratios:
target_aspect_ratio = ratio[0] / ratio[1]
# ratio_diff = abs(aspect_ratio - target_aspect_ratio)
# area_ratio = (ratio[0] * ratio[1] * image_size * image_size) / area
"""
new area > 60% of original image area is enough.
"""
factor_based_on_area_n_ratio = min(
(ratio[0] * ratio[1] * image_size * image_size) / area, 0.6
) * min(target_aspect_ratio / aspect_ratio, aspect_ratio / target_aspect_ratio)
if factor_based_on_area_n_ratio > best_factor:
best_factor = factor_based_on_area_n_ratio
best_ratio = ratio
return best_ratio
def _pad_for_patching(
self, image: torch.Tensor, target_resolution: tuple, input_data_format: ChannelDimension
) -> torch.Tensor:
"""
Pad an image to a target resolution while maintaining aspect ratio.
"""
target_height, target_width = target_resolution
new_height, new_width = get_patch_output_size(image, target_resolution, input_data_format)
paste_x = (target_width - new_width) // 2
paste_y = (target_height - new_height) // 2
padded_image = F.pad(image, padding=[paste_x, paste_y, paste_x, paste_y])
return padded_image
def _get_image_patches(
self,
image: torch.Tensor,
min_num: int,
max_num: int,
size: tuple,
tile_size: int,
use_thumbnail: bool,
interpolation: F.InterpolationMode,
pad_during_tiling: bool,
) -> list[torch.Tensor]:
image_size = get_image_size(image, channel_dim=ChannelDimension.FIRST)
orig_height, orig_width = image_size
aspect_ratio = orig_width / orig_height
# calculate the existing image aspect ratio
target_ratios = {
(i, j)
for n in range(min_num, max_num + 1)
for i in range(1, n + 1)
for j in range(1, n + 1)
if i * j <= max_num and i * j >= min_num
}
target_ratios = sorted(target_ratios, key=lambda x: x[0] * x[1])
# find the closest aspect ratio to the target
target_aspect_ratio = self.find_closest_aspect_ratio(
aspect_ratio, target_ratios, orig_width, orig_height, tile_size
)
# calculate the target width and height
target_width = tile_size * target_aspect_ratio[0]
target_height = tile_size * target_aspect_ratio[1]
blocks = target_aspect_ratio[0] * target_aspect_ratio[1]
if pad_during_tiling:
resized_image = self._resize_for_patching(
image,
(target_height, target_width),
interpolation=interpolation,
input_data_format=ChannelDimension.FIRST,
)
padded_image = self._pad_for_patching(
resized_image,
(target_height, target_width),
input_data_format=ChannelDimension.FIRST,
)
image_used_to_split = padded_image
else:
image_used_to_split = F.resize(image, (target_height, target_width), interpolation=interpolation)
processed_tiles = []
for i in range(blocks):
box = (
(i % (target_width // tile_size)) * tile_size,
(i // (target_width // tile_size)) * tile_size,
((i % (target_width // tile_size)) + 1) * tile_size,
((i // (target_width // tile_size)) + 1) * tile_size,
)
# split the image
split_img = crop(image_used_to_split, box[0], box[1], box[2], box[3])
processed_tiles.append(split_img)
assert len(processed_tiles) == blocks
if use_thumbnail and len(processed_tiles) != 1:
thumbnail_img = F.resize(image, (tile_size, tile_size), interpolation=interpolation)
processed_tiles.append(thumbnail_img)
return processed_tiles
def _pad_for_batching(
self,
pixel_values: list[torch.Tensor],
) -> list[torch.Tensor]:
"""
Pads images on the `num_of_patches` dimension with zeros to form a batch of same number of patches.
Args:
pixel_values (`List[torch.Tensor]`):
An array of pixel values of each images of shape (`batch_size`, `num_patches`, `image_in_3D`)
Returns:
List[`torch.Tensor`]: The padded images.
"""
max_patch = max(len(x) for x in pixel_values)
pixel_values = [
torch.nn.functional.pad(image, pad=[0, 0, 0, 0, 0, 0, 0, max_patch - image.shape[0]])
for image in pixel_values
]
return pixel_values
def _preprocess(
self,
images: list[torch.Tensor],
do_resize: bool,
size: SizeDict,
max_dynamic_tiles: int,
min_dynamic_tiles: int,
use_thumbnail: bool,
pad_during_tiling: bool,
interpolation: F.InterpolationMode | None,
do_center_crop: bool,
crop_size: SizeDict,
do_rescale: bool,
rescale_factor: float,
do_normalize: bool,
image_mean: float | list[float] | None,
image_std: float | list[float] | None,
do_pad: bool,
return_tensors: str | TensorType | None,
pad_size: SizeDict | None = None, # Added for transformers >=4.53.0 compatibility
disable_grouping: bool | None = None, # Added for transformers >=4.53.0 compatibility
) -> BatchFeature:
processed_images = []
image_sizes = []
# Determine the size tuple
if size and size.height and size.width:
size_tuple = (size.height, size.width)
else:
size_tuple = (size.shortest_edge, size.shortest_edge)
# Determine the patch size
if crop_size and crop_size.height:
tile_size = crop_size.height
elif size and size.height:
tile_size = size.height
else:
tile_size = size.shortest_edge
for image in images:
image_patches = self._get_image_patches(
image,
min_num=min_dynamic_tiles,
max_num=max_dynamic_tiles,
size=size_tuple,
tile_size=tile_size,
use_thumbnail=use_thumbnail,
interpolation=interpolation,
pad_during_tiling=pad_during_tiling,
)
# Group images by size for batched processing
processed_image_patches_grouped = {}
# Added for transformers >=4.53.0 compatibility
grouped_image_patches, grouped_image_patches_index = group_images_by_shape(
image_patches,
disable_grouping=disable_grouping,
)
for shape, stacked_image_patches in grouped_image_patches.items():
if do_resize:
stacked_image_patches = self.resize(
image=stacked_image_patches,
size=size,
interpolation=interpolation,
)
if do_center_crop:
stacked_image_patches = self.center_crop(stacked_image_patches, crop_size)
# Fused rescale and normalize
stacked_image_patches = self.rescale_and_normalize(
stacked_image_patches,
do_rescale,
rescale_factor,
do_normalize,
image_mean,
image_std,
)
processed_image_patches_grouped[shape] = stacked_image_patches
processed_image_patches = reorder_images(
processed_image_patches_grouped, grouped_image_patches_index
)
processed_image_patches = (
torch.stack(processed_image_patches, dim=0) if return_tensors else processed_image_patches
)
processed_images.append(processed_image_patches)
image_sizes.append(get_image_size(image, ChannelDimension.FIRST))
if do_pad:
processed_images = self._pad_for_batching(processed_images)
# processed_images = torch.stack(processed_images, dim=0) if return_tensors else processed_images
processed_images = torch.cat(processed_images, dim=0) if return_tensors else processed_images
return BatchFeature(
data={"pixel_values": processed_images, "image_sizes": image_sizes},
tensor_type=return_tensors,
)
def preprocess(
self,
images: ImageInput,
videos: VideoInput = None,
**kwargs: Unpack[Eagle25VLFastImageProcessorKwargs],
) -> BatchFeature:
validate_kwargs(
captured_kwargs=kwargs.keys(),
valid_processor_keys=self.valid_kwargs.__annotations__.keys(),
)
# Set default kwargs from self. This ensures that if a kwarg is not provided
# by the user, it gets its default value from the instance, or is set to None.
for kwarg_name in self.valid_kwargs.__annotations__:
kwargs.setdefault(kwarg_name, getattr(self, kwarg_name, None))
# Extract parameters that are only used for preparing the input images
do_convert_rgb = kwargs.pop("do_convert_rgb")
input_data_format = kwargs.pop("input_data_format")
device = kwargs.pop("device")
# Prepare input images
# transformers >= 4.53.0: uses _prepare_image_like_inputs instead of _prepare_input_images
if images is not None:
images = self._prepare_image_like_inputs(
images=images,
do_convert_rgb=do_convert_rgb,
input_data_format=input_data_format,
device=device,
)
if videos is not None:
videos = self._prepare_image_like_inputs(
images=videos,
do_convert_rgb=do_convert_rgb,
input_data_format=input_data_format,
device=device,
)
# Update kwargs that need further processing before being validated
kwargs = self._further_process_kwargs(**kwargs)
# Validate kwargs
self._validate_preprocess_kwargs(**kwargs)
# torch resize uses interpolation instead of resample
# Added for transformers >=4.53.0 compatibility
resample = kwargs.pop("resample", self.resample)
kwargs["interpolation"] = (
pil_torch_interpolation_mapping[resample]
if isinstance(resample, PILImageResampling | int)
else resample
)
# Filter kwargs to only include those accepted by _preprocess
valid_preprocess_kwargs = {
"do_resize",
"size",
"max_dynamic_tiles",
"min_dynamic_tiles",
"use_thumbnail",
"pad_during_tiling",
"interpolation",
"do_center_crop",
"crop_size",
"do_rescale",
"rescale_factor",
"do_normalize",
"image_mean",
"image_std",
"do_pad",
"return_tensors",
"pad_size",
"disable_grouping",
}
filtered_kwargs = {k: v for k, v in kwargs.items() if k in valid_preprocess_kwargs}
if images is not None:
return self._preprocess(images, **filtered_kwargs)
elif videos is not None:
return self._preprocess(videos, **filtered_kwargs)
__all__ = ["Eagle25VLImageProcessorFast"]
@@ -1,396 +0,0 @@
# --------------------------------------------------------
# NVIDIA
# Copyright (c) 2025 NVIDIA
# Licensed under The MIT License [see LICENSE for details]
# --------------------------------------------------------
import inspect
import torch
import torch.utils.checkpoint as cp
from peft import LoraConfig, get_peft_model
from torch import nn
from torch.nn import CrossEntropyLoss
from transformers import GenerationConfig
from transformers.generation import GenerationMixin
from transformers.modeling_outputs import CausalLMOutputWithPast
from transformers.modeling_utils import PreTrainedModel
from transformers.models.llama.modeling_llama import LlamaForCausalLM
from transformers.models.qwen2.modeling_qwen2 import Qwen2ForCausalLM
from transformers.models.qwen3.modeling_qwen3 import Qwen3ForCausalLM
from transformers.models.siglip.modeling_siglip import SiglipVisionModel
from transformers.utils import add_start_docstrings, logging
from .configuration_eagle2_5_vl import Eagle25VLConfig
logger = logging.get_logger(__name__)
# copy from https://github.com/huggingface/transformers/blob/main/src/transformers/models/llava_onevision/modeling_llava_onevision.py#L241C1-L280C1
EAGLE2_5_VL_START_DOCSTRING = r"""
This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
etc.)
This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
and behavior.
Parameters:
config ([`Eagle25VLConfig`]):
Model configuration class with all the parameters of the model. Initializing with a config file does not
load the weights associated with the model, only the configuration. Check out the
[`~PreTrainedModel.from_pretrained`] method to load the model weights.
"""
@add_start_docstrings(
"The bare Eagle2_5_VL Model outputting raw hidden-states without any specific head on top.",
EAGLE2_5_VL_START_DOCSTRING,
)
class Eagle25VLPreTrainedModel(PreTrainedModel):
config_class = Eagle25VLConfig
base_model_prefix = "model"
main_input_name = "input_ids"
supports_gradient_checkpointing = True
_no_split_modules = [
"Qwen2DecoderLayer",
"LlamaDecoderLayer",
"Siglip2EncoderLayer",
"SiglipEncoderLayer",
]
_skip_keys_device_placement = "past_key_values"
_supports_flash_attn = True
_supports_flash_attn_2 = True
_supports_cache_class = True
_supports_static_cache = True
_supports_quantized_cache = True
_supports_sdpa = True
def _init_weights(self, module):
std = self.config.initializer_range
if isinstance(module, nn.Linear | nn.Conv2d):
module.weight.data.normal_(mean=0.0, std=std)
if module.bias is not None:
module.bias.data.zero_()
elif isinstance(module, nn.Embedding):
module.weight.data.normal_(mean=0.0, std=std)
if module.padding_idx is not None:
module.weight.data[module.padding_idx].zero_()
class Eagle25VLForConditionalGeneration(Eagle25VLPreTrainedModel, GenerationMixin):
config_class = Eagle25VLConfig
def __init__(self, config: Eagle25VLConfig, vision_model=None, language_model=None):
super().__init__(config)
image_size = config.force_image_size or config.vision_config.image_size
patch_size = config.vision_config.patch_size
self.patch_size = patch_size
if config.use_pixel_shuffle:
self.num_image_token = int((image_size // patch_size) ** 2 * (config.downsample_ratio**2))
else:
self.num_image_token = int((image_size // patch_size) ** 2)
self.select_layer = config.select_layer
self.downsample_ratio = config.downsample_ratio
self.loss_version = config.loss_version
self.mlp_checkpoint = config.mlp_checkpoint
self.use_pixel_shuffle = config.use_pixel_shuffle
self.mlp_connector_layers = config.mlp_connector_layers
logger.info(f"num_image_token: {self.num_image_token}")
logger.info(f"mlp_checkpoint: {self.mlp_checkpoint}")
if vision_model is not None:
self.vision_model = vision_model
else:
if config.vision_config.model_type == "siglip_vision_model":
config.vision_config._attn_implementation = "flash_attention_2"
self.vision_model = SiglipVisionModel(config.vision_config)
else:
raise NotImplementedError(f"{config.vision_config.model_type} is not implemented.")
if language_model is not None:
self.language_model = language_model
else:
if config.text_config.architectures[0] == "LlamaForCausalLM":
self.language_model = LlamaForCausalLM(config.text_config)
elif config.text_config.architectures[0] == "Phi3ForCausalLM":
raise NotImplementedError("Phi3 is not implemented.")
# self.language_model = Phi3ForCausalLM(config.text_config)
elif config.text_config.architectures[0] == "Qwen2ForCausalLM":
assert config.text_config._attn_implementation == "flash_attention_2", (
f"Qwen2 must use flash_attention_2 but got {config.text_config._attn_implementation}"
)
self.language_model = Qwen2ForCausalLM(config.text_config)
elif config.text_config.architectures[0] == "Qwen3ForCausalLM":
self.language_model = Qwen3ForCausalLM(config.text_config)
else:
raise NotImplementedError(f"{config.text_config.architectures[0]} is not implemented.")
vit_hidden_size = config.vision_config.hidden_size
llm_hidden_size = config.text_config.hidden_size
if config.mlp_connector_layers == 2:
self.mlp1 = nn.Sequential(
nn.LayerNorm(vit_hidden_size * int(1 / self.downsample_ratio) ** 2),
nn.Linear(vit_hidden_size * int(1 / self.downsample_ratio) ** 2, llm_hidden_size),
nn.GELU(),
nn.Linear(llm_hidden_size, llm_hidden_size),
)
elif config.mlp_connector_layers == 1 and config.use_pixel_shuffle:
self.mlp1 = nn.Sequential(
nn.Linear(vit_hidden_size * int(1 / self.downsample_ratio) ** 2, llm_hidden_size),
)
elif config.mlp_connector_layers == 1 and not config.use_pixel_shuffle:
self.mlp1 = nn.Sequential(
nn.Linear(vit_hidden_size, llm_hidden_size),
)
else:
raise NotImplementedError(f"{config.mlp_connector_layers} is not implemented.")
self.image_token_index = config.image_token_index
self.neftune_alpha = None
if config.use_backbone_lora:
self.wrap_backbone_lora(r=config.use_backbone_lora, lora_alpha=2 * config.use_backbone_lora)
self.use_llm_lora = config.use_llm_lora
if config.use_llm_lora:
self.wrap_llm_lora(r=config.use_llm_lora, lora_alpha=2 * config.use_llm_lora)
self.check_forward_kwargs()
def check_forward_kwargs(self):
# We intentionally avoid using **kwargs in forward because Hugging Face Transformers
# has special handling for functions with **kwargs parameters that would affect
# how our model is processed during training and inference.
forward_params = inspect.signature(self.forward).parameters
assert not any(k.kind == inspect.Parameter.VAR_KEYWORD for k in forward_params.values())
def wrap_backbone_lora(self, r=128, lora_alpha=256, lora_dropout=0.05):
lora_config = LoraConfig(
r=r,
target_modules=[
"self_attn.q_proj",
"self_attn.k_proj",
"self_attn.v_proj",
"self_attn.out_proj",
"mlp.fc1",
"mlp.fc2",
],
lora_alpha=lora_alpha,
lora_dropout=lora_dropout,
)
self.vision_model = get_peft_model(self.vision_model, lora_config)
self.vision_model.print_trainable_parameters()
def wrap_llm_lora(self, r=128, lora_alpha=256, lora_dropout=0.05):
lora_config = LoraConfig(
r=r,
target_modules=[
"self_attn.q_proj",
"self_attn.k_proj",
"self_attn.v_proj",
"self_attn.o_proj",
"mlp.gate_proj",
"mlp.down_proj",
"mlp.up_proj",
],
lora_alpha=lora_alpha,
lora_dropout=lora_dropout,
task_type="CAUSAL_LM",
)
self.language_model = get_peft_model(self.language_model, lora_config)
self.language_model.enable_input_require_grads()
self.language_model.print_trainable_parameters()
self.use_llm_lora = True
def forward(
self,
pixel_values: torch.FloatTensor,
input_ids: torch.LongTensor = None,
attention_mask: torch.Tensor | None = None,
position_ids: torch.LongTensor | None = None,
image_flags: torch.LongTensor | None = None,
past_key_values: list[torch.FloatTensor] | None = None,
labels: torch.LongTensor | None = None,
use_cache: bool | None = None,
output_attentions: bool | None = None,
output_hidden_states: bool | None = None,
return_dict: bool | None = None,
num_tiles_list: list[torch.Tensor] | None = None,
) -> tuple | CausalLMOutputWithPast:
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
input_embeds = self.language_model.get_input_embeddings()(input_ids)
vit_embeds = self.extract_feature(pixel_values)
if image_flags is not None:
image_flags = image_flags.view(-1)
vit_embeds = vit_embeds[image_flags == 1]
b, n, c = input_embeds.shape
input_embeds = input_embeds.reshape(b * n, c)
input_ids = input_ids.reshape(b * n)
selected = input_ids == self.image_token_index
try:
input_embeds[selected] = input_embeds[selected] * 0.0 + vit_embeds.reshape(-1, c)
except Exception as e:
vit_embeds = vit_embeds.reshape(-1, c)
print(
f"warning: {e}, input_embeds[selected].shape={input_embeds[selected].shape}, "
f"vit_embeds.shape={vit_embeds.shape}"
)
n_token = selected.sum()
input_embeds[selected] = input_embeds[selected] * 0.0 + vit_embeds[:n_token]
input_embeds = input_embeds.reshape(b, n, c)
outputs = self.language_model(
inputs_embeds=input_embeds,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_values=past_key_values,
use_cache=use_cache,
output_attentions=output_attentions,
output_hidden_states=output_hidden_states,
)
logits = outputs.logits
loss = None
if labels is not None:
# Shift so that tokens < n predict n
shift_logits = logits[..., :-1, :].contiguous()
shift_labels = labels[..., 1:].contiguous()
# Flatten the tokens
loss_fct = CrossEntropyLoss()
shift_logits = shift_logits.view(-1, self.language_model.config.vocab_size)
shift_labels = shift_labels.view(-1)
# Enable model parallelism
shift_labels = shift_labels.to(shift_logits.device)
loss = loss_fct(shift_logits, shift_labels)
if not return_dict:
output = (logits,) + outputs[1:]
return (loss,) + output if loss is not None else output
return CausalLMOutputWithPast(
loss=loss,
logits=logits,
past_key_values=outputs.past_key_values,
hidden_states=outputs.hidden_states,
attentions=outputs.attentions,
)
def pixel_shuffle(self, x, scale_factor=0.5):
n, w, h, c = x.size()
# N, W, H, C --> N, W, H * scale, C // scale
x = x.view(n, w, int(h * scale_factor), int(c / scale_factor))
# N, W, H * scale, C // scale --> N, H * scale, W, C // scale
x = x.permute(0, 2, 1, 3).contiguous()
# N, H * scale, W, C // scale --> N, H * scale, W * scale, C // (scale ** 2)
x = x.view(n, int(h * scale_factor), int(w * scale_factor), int(c / (scale_factor * scale_factor)))
x = x.permute(0, 2, 1, 3).contiguous()
return x
def extract_feature(self, pixel_values):
if self.select_layer == -1:
vit_embeds = self.vision_model(
pixel_values=pixel_values, output_hidden_states=False, return_dict=True
)
if hasattr(vit_embeds, "last_hidden_state"):
vit_embeds = vit_embeds.last_hidden_state
else:
vit_embeds = self.vision_model(
pixel_values=pixel_values, output_hidden_states=True, return_dict=True
).hidden_states[self.select_layer]
if self.use_pixel_shuffle:
h = w = int(vit_embeds.shape[1] ** 0.5)
vit_embeds = vit_embeds.reshape(vit_embeds.shape[0], h, w, -1)
vit_embeds = self.pixel_shuffle(
vit_embeds, scale_factor=self.downsample_ratio
) # torch.Size([B, 1024, 1024]) -> torch.Size([B, 16, 16, 4096])
vit_embeds = vit_embeds.reshape(
vit_embeds.shape[0], -1, vit_embeds.shape[-1]
) # torch.Size([B, 16, 16, 4096]) -> torch.Size([B, 256, 4096])
if self.mlp_checkpoint and vit_embeds.requires_grad:
vit_embeds = cp.checkpoint(self.mlp1, vit_embeds)
else:
vit_embeds = self.mlp1(vit_embeds)
return vit_embeds
@torch.no_grad()
def generate(
self,
pixel_values: torch.FloatTensor | None = None,
input_ids: torch.FloatTensor | None = None,
attention_mask: torch.LongTensor | None = None,
visual_features: torch.FloatTensor | None = None,
generation_config: GenerationConfig | None = None,
output_hidden_states: bool | None = None,
image_sizes: list[tuple[int, int]] | None = None,
**generate_kwargs,
) -> torch.LongTensor:
if pixel_values is not None:
if visual_features is not None:
vit_embeds = visual_features
else:
vit_embeds = self.extract_feature(pixel_values)
input_embeds = self.language_model.get_input_embeddings()(input_ids)
b, n, c = input_embeds.shape
input_embeds = input_embeds.reshape(b * n, c)
input_ids = input_ids.reshape(b * n)
selected = input_ids == self.config.image_token_index
assert selected.sum() != 0
input_embeds[selected] = vit_embeds.reshape(-1, c).to(input_embeds.device)
input_embeds = input_embeds.reshape(b, n, c)
else:
input_embeds = self.language_model.get_input_embeddings()(input_ids)
if "use_cache" not in generate_kwargs:
generate_kwargs["use_cache"] = True
outputs = self.language_model.generate(
inputs_embeds=input_embeds,
attention_mask=attention_mask,
generation_config=generation_config,
output_hidden_states=output_hidden_states,
**generate_kwargs,
)
return outputs
# Copied from transformers.models.llava_next.modeling_llava_next.LlavaNextForConditionalGeneration.get_input_embeddings
def get_input_embeddings(self):
return self.language_model.get_input_embeddings()
# Copied from transformers.models.llava_next.modeling_llava_next.LlavaNextForConditionalGeneration.set_input_embeddings
def set_input_embeddings(self, value):
self.language_model.set_input_embeddings(value)
# Copied from transformers.models.llava_next.modeling_llava_next.LlavaNextForConditionalGeneration.get_output_embeddings
def get_output_embeddings(self):
return self.language_model.get_output_embeddings()
# Copied from transformers.models.llava_next.modeling_llava_next.LlavaNextForConditionalGeneration.set_output_embeddings
def set_output_embeddings(self, new_embeddings):
self.language_model.set_output_embeddings(new_embeddings)
# Copied from transformers.models.llava_next.modeling_llava_next.LlavaNextForConditionalGeneration.set_decoder
def set_decoder(self, decoder):
self.language_model.set_decoder(decoder)
# Copied from transformers.models.llava_next.modeling_llava_next.LlavaNextForConditionalGeneration.get_decoder
def get_decoder(self):
return self.language_model.get_decoder()
@@ -1,541 +0,0 @@
# Copyright 2024 The HuggingFace Inc. team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Processor class for Eagle25VL.
copy from https://github.com/huggingface/transformers/blob/main/src/transformers/models/llava_onevision/processing_llava_onevision.py
"""
import base64
import os
import re
from io import BytesIO
import requests
import torch
from PIL import Image
from transformers.feature_extraction_utils import BatchFeature
from transformers.image_utils import ImageInput
from transformers.processing_utils import ProcessingKwargs, ProcessorMixin, Unpack
from transformers.tokenization_utils_base import PreTokenizedInput, TextInput
from transformers.utils import logging
from transformers.video_utils import VideoInput
logger = logging.get_logger(__name__)
FRAME_FACTOR = 2
FPS = 2.0
FPS_MIN_FRAMES = 4
FPS_MAX_FRAMES = 256
def to_rgb(pil_image: Image.Image) -> Image.Image:
if pil_image.mode == "RGBA":
white_background = Image.new("RGB", pil_image.size, (255, 255, 255))
white_background.paste(pil_image, mask=pil_image.split()[3]) # Use alpha channel as mask
return white_background
else:
return pil_image.convert("RGB")
def fetch_image(ele: dict[str, str | Image.Image]) -> Image.Image:
image = ele["image"] if "image" in ele else ele["image_url"]
image_obj = None
if isinstance(image, Image.Image):
image_obj = image
elif image.startswith("http://") or image.startswith("https://"):
response = requests.get(image, stream=True, timeout=10)
image_obj = Image.open(BytesIO(response.content))
elif image.startswith("file://"):
image_obj = Image.open(image[7:])
elif image.startswith("data:image"):
if "base64," in image:
_, base64_data = image.split("base64,", 1)
data = base64.b64decode(base64_data)
image_obj = Image.open(BytesIO(data))
else:
image_obj = Image.open(image)
if image_obj is None:
raise ValueError(
f"Unrecognized image input, support local path, http url, base64 and PIL.Image, got {image}"
)
image = to_rgb(image_obj)
if "scale_factor" in ele:
scale_factor = ele["scale_factor"]
image = image.resize((image.width * scale_factor, image.height * scale_factor), Image.BILINEAR)
return image
class Eagle25VLProcessorKwargs(ProcessingKwargs, total=False):
# see processing_utils.ProcessingKwargs documentation for usage.
_defaults = {
"text_kwargs": {
"padding": False,
},
"images_kwargs": {},
"videos_kwargs": {"max_dynamic_tiles": 1},
}
class Eagle25VLProcessor(ProcessorMixin):
r"""
Constructs a Eagle25VL processor which wraps a Eagle25VL video processor, Eagle25VL image processor and a Eagle25VL tokenizer into a single processor.
[`Eagle25VLProcessor`] offers all the functionalities of [`Eagle25VLVideoProcessor`], [`Eagle25VLImageProcessor`] and [`Eagle25VLTokenizer`]. See the
[`~Eagle25VLVideoProcessor.__call__`], [`~Eagle25VLProcessor.__call__`] and [`~Eagle25VLProcessor.decode`] for more information.
Args:
image_processor ([`LlavaOnevisionImageProcessor`], *optional*):
The image processor is a required input.
tokenizer ([`LlamaTokenizerFast`], *optional*):
The tokenizer is a required input.
num_image_tokens (`int`, *optional*):
Number of image tokens for one imagethat will be returned by vision tower.
vision_feature_select_strategy (`str`, *optional*):
The feature selection strategy used to select the vision feature from the vision backbone.
Should be same as in model's config
chat_template (`str`, *optional*): A Jinja template which will be used to convert lists of messages
in a chat into a tokenizable string.
image_token (`str`, *optional*, defaults to `"<image>"`):
Special token used to denote image location.
video_token (`str`, *optional*, defaults to `"<video>"`):
Special token used to denote video location.
"""
attributes = ["image_processor", "tokenizer"]
valid_kwargs = [
"chat_template",
"num_image_tokens",
"vision_feature_select_strategy",
"image_token",
"video_token",
"images_kwargs",
"videos_kwargs",
"text_kwargs",
]
tokenizer_class = "AutoTokenizer"
def __init__(
self,
image_processor=None,
tokenizer=None,
vision_feature_select_strategy=None,
chat_template=None,
image_token="<IMG_CONTEXT>", # nosec: B107
video_token="<IMG_CONTEXT>", # nosec: B107
tokens_per_tile=256,
image_placeholder="image",
video_placeholder="video",
image_start_token="<img>",
image_end_token="</img>",
**kwargs,
):
self.vision_feature_select_strategy = vision_feature_select_strategy
self.image_token = tokenizer.image_token if hasattr(tokenizer, "image_token") else image_token
self.video_token = tokenizer.video_token if hasattr(tokenizer, "video_token") else video_token
self.image_token_id = (
tokenizer.image_token_id
if getattr(tokenizer, "image_token_id", None)
else tokenizer.convert_tokens_to_ids(self.image_token)
)
self.video_token_id = (
tokenizer.video_token_id
if getattr(tokenizer, "video_token_id", None)
else tokenizer.convert_tokens_to_ids(self.video_token)
)
self.image_placeholder = image_placeholder
self.video_placeholder = video_placeholder
self.tokens_per_tile = tokens_per_tile
self.image_start_token = image_start_token
self.image_end_token = image_end_token
if "auto_map" in kwargs:
self.auto_map = kwargs["auto_map"]
super().__init__(image_processor, tokenizer, chat_template=chat_template)
def replace_media_placeholder(
self, text, image_list, video_list, timestamps_list, fps_list, **output_kwargs
):
num_of_images_in_this_sample = 0
num_of_videos_in_this_sample = 0
# Regular expression pattern to match formats like <image-1> or <video-2>
pattern = re.compile(rf"<({self.image_placeholder}|{self.video_placeholder})-(\d+)>")
unified_frame_list = []
# image_min_dynamic_tiles = output_kwargs["images_kwargs"].get(
# "min_dynamic_tiles", self.image_processor.min_dynamic_tiles
# )
# image_max_dynamic_tiles = output_kwargs["images_kwargs"].get(
# "max_dynamic_tiles", self.image_processor.max_dynamic_tiles
# )
# image_use_thumbnail = output_kwargs["images_kwargs"].get(
# "use_thumbnail", self.image_processor.use_thumbnail
# )
video_min_dynamic_tiles = output_kwargs["videos_kwargs"].get(
"min_dynamic_tiles", self.image_processor.min_dynamic_tiles
)
video_max_dynamic_tiles = output_kwargs["videos_kwargs"].get(
"max_dynamic_tiles", self.image_processor.max_dynamic_tiles
)
video_use_thumbnail = output_kwargs["videos_kwargs"].get(
"use_thumbnail", self.image_processor.use_thumbnail
)
tile_size = self.image_processor.size.get("height", 448)
# Function to replace tags in a single text
def replace_in_text(text):
# repl callback function for each match replacement operation
def repl(match):
nonlocal unified_frame_list
nonlocal num_of_images_in_this_sample
nonlocal num_of_videos_in_this_sample
media_type = match.group(1) # 'image' or 'video'
idx_in_list = int(match.group(2)) - 1 # Convert to list index (0-based)
# Select the corresponding path based on media type
idx_mapper = {
0: "first",
1: "second",
2: "third",
3: "fourth",
4: "fifth",
5: "sixth",
6: "seventh",
7: "eighth",
8: "ninth",
9: "tenth",
}
if media_type == "image":
image_inputs = self.image_processor(
images=[image_list[idx_in_list]],
videos=None,
**output_kwargs["images_kwargs"],
)
if isinstance(image_inputs["pixel_values"], list):
_pv = image_inputs["pixel_values"]
if _pv and isinstance(_pv[0], list):
_pv = [t for sub in _pv for t in sub]
image_inputs["pixel_values"] = torch.stack(
[t if isinstance(t, torch.Tensor) else torch.as_tensor(t) for t in _pv]
)
num_all_tiles = image_inputs["pixel_values"].shape[0]
special_placeholder = f"<image {idx_in_list + 1}>{self.image_start_token}{self.image_token * num_all_tiles * self.tokens_per_tile}{self.image_end_token}"
unified_frame_list.append(image_inputs)
num_of_images_in_this_sample += 1
elif media_type == "video":
video_inputs = self.image_processor(
images=None,
videos=[video_list[idx_in_list]],
**output_kwargs["videos_kwargs"],
)
if isinstance(video_inputs["pixel_values"], list):
_pv = video_inputs["pixel_values"]
if _pv and isinstance(_pv[0], list):
_pv = [t for sub in _pv for t in sub]
video_inputs["pixel_values"] = torch.stack(
[t if isinstance(t, torch.Tensor) else torch.as_tensor(t) for t in _pv]
)
num_all_tiles = video_inputs["pixel_values"].shape[0]
image_sizes = video_inputs["image_sizes"]
if timestamps_list is not None and -1 not in timestamps_list:
frame_timestamps = timestamps_list[idx_in_list]
else:
frame_timestamps = None
sampled_fps = fps_list[idx_in_list] if fps_list is not None else None
num_of_tiles_each_frame = [
self.get_number_tiles_based_on_image_size(
image_size,
video_min_dynamic_tiles,
video_max_dynamic_tiles,
video_use_thumbnail,
tile_size,
)
for image_size in image_sizes
]
assert sum(num_of_tiles_each_frame) == num_all_tiles, (
f"The number of tiles in each frame is not equal to the total number of tiles: {sum(num_of_tiles_each_frame)} != {num_all_tiles}"
)
if frame_timestamps is not None:
assert len(frame_timestamps) == len(num_of_tiles_each_frame), (
f"The number of timestamps is not equal to the number of frames: {len(frame_timestamps)} != {len(num_of_tiles_each_frame)}"
)
special_placeholder = [
f"Frame {i + 1} sample at {frame_timestamps[i]:.2f}s: {self.image_start_token}{self.image_token * num_of_tiles * self.tokens_per_tile}{self.image_end_token}"
for i, num_of_tiles in enumerate(num_of_tiles_each_frame)
]
else:
special_placeholder = [
f"Frame {i + 1}: {self.image_start_token}{self.image_token * num_of_tiles * self.tokens_per_tile}{self.image_end_token}"
for i, num_of_tiles in enumerate(num_of_tiles_each_frame)
]
if sampled_fps is not None:
special_placeholder = (
f"The {idx_mapper[idx_in_list]} video sampled with {sampled_fps:.2f} fps: "
+ "".join(special_placeholder)
)
else:
special_placeholder = f"The {idx_mapper[idx_in_list]} video: " + "".join(
special_placeholder
)
unified_frame_list.append(video_inputs)
num_of_videos_in_this_sample += 1
else:
raise ValueError(f"Unknown media type: {media_type}")
return special_placeholder
return pattern.sub(repl, text)
text = replace_in_text(text)
if len(unified_frame_list) > 0:
def _to_tensor(v):
if isinstance(v, torch.Tensor):
return v
if isinstance(v, list):
if v and isinstance(v[0], list):
v = [t for sub in v for t in sub]
return torch.stack([t if isinstance(t, torch.Tensor) else torch.as_tensor(t) for t in v])
return torch.as_tensor(v)
pixel_values = torch.cat([_to_tensor(frame["pixel_values"]) for frame in unified_frame_list])
image_sizes = torch.cat([_to_tensor(frame["image_sizes"]) for frame in unified_frame_list])
else:
pixel_values = None
image_sizes = None
return (
text,
pixel_values,
image_sizes,
num_of_images_in_this_sample,
num_of_videos_in_this_sample,
)
def __call__(
self,
images: ImageInput = None,
text: TextInput | PreTokenizedInput | list[TextInput] | list[PreTokenizedInput] = None,
audio=None,
videos: VideoInput = None,
**kwargs: Unpack[Eagle25VLProcessorKwargs],
) -> BatchFeature:
"""
Main method to prepare for the model one or several sequences(s) and image(s). This method forwards the `text`
and `kwargs` arguments to LlamaTokenizerFast's [`~LlamaTokenizerFast.__call__`] if `text` is not `None` to encode
the text. To prepare the image(s), this method forwards the `images` and `kwrags` arguments to
LlavaNextImageProcessor's [`~LlavaNextImageProcessor.__call__`] if `images` is not `None`. Please refer to the docstring
of the above two methods for more information.
Args:
images (`PIL.Image.Image`, `np.ndarray`, `torch.Tensor`, `List[PIL.Image.Image]`, `List[np.ndarray]`, `List[torch.Tensor]`):
The image or batch of images to be prepared. Each image can be a PIL image, NumPy array or PyTorch
tensor. Both channels-first and channels-last formats are supported.
text (`str`, `List[str]`, `List[List[str]]`):
The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings
(pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set
`is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
videos (`np.ndarray`, `torch.Tensor`, `List[np.ndarray]`, `List[torch.Tensor]`):
The image or batch of videos to be prepared. Each video can be a 4D NumPy array or PyTorch
Returns:
[`BatchFeature`]: A [`BatchFeature`] with the following fields:
- **input_ids** -- List of token ids to be fed to a model. Returned when `text` is not `None`.
- **attention_mask** -- List of indices specifying which tokens should be attended to by the model (when
`return_attention_mask=True` or if *"attention_mask"* is in `self.model_input_names` and if `text` is not
`None`).
- **pixel_values** -- Pixel values to be fed to a model. Returned when `images` is not `None`.
- **pixel_values_videos** -- Pixel values of a video input to be fed to a model. Returned when `videos` is not `None`.
- **image_sizes** -- Size of each image that will be used to unpad an image. Returned when `images` is not `None`.
"""
output_kwargs = self._merge_kwargs(
Eagle25VLProcessorKwargs,
tokenizer_init_kwargs=self.tokenizer.init_kwargs,
**kwargs,
)
if isinstance(text, str):
text_list = [text]
elif not isinstance(text, list) and not isinstance(text[0], str):
raise ValueError("Invalid input text. Please provide a string, or a list of strings")
elif isinstance(text, list) and isinstance(text[0], str):
text_list = text
if images is None:
images = []
if videos is None:
videos = []
pixel_values_list = []
image_sizes_list = []
new_sample_list = []
image_start_idx = 0
video_start_idx = 0
timestamps_batch = output_kwargs["videos_kwargs"].pop("timestamps", None)
fps_batch = output_kwargs["videos_kwargs"].pop("fps", None)
for sample in text_list:
timestamps_list = timestamps_batch[video_start_idx:] if timestamps_batch is not None else None
fps_list = fps_batch[video_start_idx:] if fps_batch is not None else None
(
sample,
pixel_values,
image_sizes,
num_of_images_in_this_sample,
num_of_videos_in_this_sample,
) = self.replace_media_placeholder(
sample,
images[image_start_idx:],
videos[video_start_idx:],
timestamps_list,
fps_list,
**output_kwargs,
)
new_sample_list.append(sample)
if pixel_values is not None:
pixel_values_list.append(pixel_values)
image_sizes_list.append(image_sizes)
image_start_idx += num_of_images_in_this_sample
video_start_idx += num_of_videos_in_this_sample
if len(pixel_values_list) > 0:
image_inputs = {
"pixel_values": torch.cat(pixel_values_list),
"image_sizes": torch.cat(image_sizes_list),
}
else:
image_inputs = {}
video_inputs = {}
text_inputs = self.tokenizer(new_sample_list, **output_kwargs["text_kwargs"])
return BatchFeature(data={**text_inputs, **image_inputs, **video_inputs})
def get_number_tiles_based_on_image_size(
self, image_size: tuple, min_num: int, max_num: int, use_thumbnail: bool, tile_size: int
) -> int:
"""
Get the number of tiles based on the image size.
"""
orig_height, orig_width = image_size
aspect_ratio = orig_width / orig_height
# calculate the existing image aspect ratio
target_ratios = {
(i, j)
for n in range(min_num, max_num + 1)
for i in range(1, n + 1)
for j in range(1, n + 1)
if i * j <= max_num and i * j >= min_num
}
target_ratios = sorted(target_ratios, key=lambda x: x[0] * x[1])
# find the closest aspect ratio to the target
target_aspect_ratio = self.image_processor.find_closest_aspect_ratio(
aspect_ratio, target_ratios, orig_width, orig_height, tile_size
)
tiles_num = target_aspect_ratio[0] * target_aspect_ratio[1]
if use_thumbnail and tiles_num > 1:
tiles_num += 1
return tiles_num
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.batch_decode with CLIP->Llama
def batch_decode(self, *args, **kwargs):
"""
This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.batch_decode`]. Please
refer to the docstring of this method for more information.
"""
return self.tokenizer.batch_decode(*args, **kwargs)
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.decode with CLIP->Llama
def decode(self, *args, **kwargs):
"""
This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.decode`]. Please refer to
the docstring of this method for more information.
"""
return self.tokenizer.decode(*args, **kwargs)
@property
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.model_input_names
def model_input_names(self):
tokenizer_input_names = self.tokenizer.model_input_names
image_processor_input_names = self.image_processor.model_input_names
return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names))
# override to save video-config in a separate config file
def save_pretrained(self, save_directory, **kwargs):
if os.path.isfile(save_directory):
raise ValueError(f"Provided path ({save_directory}) should be a directory, not a file")
os.makedirs(save_directory, exist_ok=True)
outputs = super().save_pretrained(save_directory, **kwargs)
return outputs
# override to load video-config from a separate config file
@classmethod
def from_pretrained(cls, pretrained_model_name_or_path, **kwargs):
processor = super().from_pretrained(pretrained_model_name_or_path, **kwargs)
# if return_unused_kwargs a tuple is returned where the second element is 'unused_kwargs'
if isinstance(processor, tuple):
processor = processor[0]
return processor
# Copy from https://github.com/QwenLM/Qwen2.5-VL/blob/main/qwen-vl-utils/src/qwen_vl_utils/vision_process.py
def process_vision_info(
self,
conversations: list[dict] | list[list[dict]],
return_video_kwargs: bool = False,
) -> tuple[list[Image.Image] | None, list[torch.Tensor | list[Image.Image]] | None, dict | None]:
vision_infos = self.extract_vision_info(conversations)
## Read images or videos
image_inputs = []
video_inputs = []
video_sample_fps_list = []
video_timestamps_list = []
for vision_info in vision_infos:
if "image" in vision_info or "image_url" in vision_info:
image_inputs.append(fetch_image(vision_info))
else:
raise ValueError("image, image_url or video should in content.")
if len(image_inputs) == 0:
image_inputs = None
if len(video_inputs) == 0:
video_inputs = None
if return_video_kwargs:
return (
image_inputs,
video_inputs,
{"fps": video_sample_fps_list, "timestamps": video_timestamps_list},
)
return image_inputs, video_inputs
def extract_vision_info(self, conversations: list[dict] | list[list[dict]]) -> list[dict]:
vision_infos = []
if isinstance(conversations[0], dict):
conversations = [conversations]
for conversation in conversations:
for message in conversation:
if isinstance(message["content"], list):
for ele in message["content"]:
if (
"image" in ele
or "image_url" in ele
or "video" in ele
or ele["type"] in ("image", "image_url", "video")
):
vision_infos.append(ele)
return vision_infos
__all__ = ["Eagle25VLProcessor"]
+3 -2
View File
@@ -40,6 +40,7 @@ from lerobot.utils.constants import ACTION, OBS_IMAGES
from lerobot.utils.import_utils import require_package
from ..pretrained import PreTrainedPolicy
from ..utils import get_device_from_parameters
from .configuration_groot import (
GROOT_N1_7,
GrootConfig,
@@ -399,7 +400,7 @@ class GrootPolicy(PreTrainedPolicy):
groot_inputs = self._filter_groot_inputs(batch, include_action=True)
# Get device from model parameters
device = next(self.parameters()).device
device = get_device_from_parameters(self)
# Run GR00T forward under bf16 autocast when enabled to reduce activation memory
# Rationale: Matches original GR00T finetuning (bf16 compute, fp32 params) and avoids fp32 upcasts.
@@ -437,7 +438,7 @@ class GrootPolicy(PreTrainedPolicy):
)
# Get device from model parameters
device = next(self.parameters()).device
device = get_device_from_parameters(self)
# Use bf16 autocast for inference to keep memory low and match backbone dtype
with torch.autocast(device_type=device.type, dtype=torch.bfloat16, enabled=self.config.use_bf16):
@@ -579,8 +579,8 @@ def make_groot_pre_post_processors(
1. Optional key renaming (dataset-specific key mapping)
2. Add batch dimension to unbatched data
3. Pack video/state/action/language/embodiment and apply optional min-max normalization before padding
4. Encode video+language with Eagle VLM into intermediate eagle_content
5. Collate eagle_content into batched eagle_* tensors
4. Encode video+language with the GR00T N1.7 VLM backbone (Qwen3-VL) into intermediate VLM content
5. Collate the VLM content into batched backbone input tensors
6. Move tensors to device (GPU)
NOTE: We optionally apply min-max normalization to STATE and ACTION using
@@ -0,0 +1,2 @@
# Local-only parity artifacts (regenerated via dump_original_n1_7.py); never committed.
*.npz
@@ -0,0 +1,207 @@
#!/usr/bin/env python
# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Parity test: original NVIDIA GR00T N1.7 vs the GR00T N1.7 integration in LeRobot.
Verifies that the self-contained LeRobot reimplementation of the GR00T N1.7 action
head + Qwen3-VL backbone produces the SAME raw model output (``action_pred``, the
normalized flow-matching prediction before any action decoding) as NVIDIA's original
``gr00t`` package, given byte-identical pre-processed inputs and the same
flow-matching seed. The comparison is parametrized over every embodiment tag present
in the checkpoint.
To keep the comparison fair, the original outputs + the exact collated inputs are
produced once per embodiment in the original ``gr00t`` env via the companion script
``utils/dump_original_n1_7.py`` (in the ``utils`` package next to this file) and saved
to per-tag ``.npz`` files.
This test discovers those artifacts, replays the identical inputs through the LeRobot
model, and compares.
This test is LOCAL-only and skips on CI, when ``gr00t``-side prerequisites are not
present, or when no artifact has been generated. By default it looks for artifacts in
``<this dir>/artifacts/``; override with ``GROOT_N1_7_PARITY_DIR``. See the
"Original-vs-LeRobot parity test" section of ``src/lerobot/policies/groot/README.md``
for the full run procedure.
"""
import os
from pathlib import Path
import numpy as np
import pytest
import torch
pytestmark = pytest.mark.skipif(
os.environ.get("CI") == "true" or os.environ.get("GITHUB_ACTIONS") == "true",
reason="Requires a local GR00T N1.7 checkpoint + pre-generated artifacts; not for CI.",
)
from lerobot.policies.groot.configuration_groot import GROOT_N1_7 # noqa: E402,F401
SEED = 42
DEVICE = os.environ.get("GROOT_PARITY_DEVICE", "cuda" if torch.cuda.is_available() else "cpu")
ATOL = float(os.environ.get("GROOT_PARITY_ATOL", "1e-3"))
RTOL = float(os.environ.get("GROOT_PARITY_RTOL", "1e-3"))
# Artifact filenames are original_n1_7_<embodiment_tag>.npz
_ARTIFACT_PREFIX = "original_n1_7_"
_ARTIFACT_SUFFIX = ".npz"
def _artifact_dir() -> Path:
"""Directory holding the per-embodiment .npz artifacts.
Self-contained by default: a sibling ``artifacts/`` directory next to this test.
Override with ``GROOT_N1_7_PARITY_DIR`` (e.g. to point at a scratch location).
The directory is read-only here -- it is populated by ``utils/dump_original_n1_7.py``
run in the original gr00t environment; the test never creates it.
"""
env = os.environ.get("GROOT_N1_7_PARITY_DIR")
if env:
return Path(env)
return Path(__file__).resolve().parent / "artifacts"
def _discover_artifacts() -> list[tuple[str, Path]]:
"""Return [(embodiment_tag, npz_path), ...] for every dumped artifact."""
d = _artifact_dir()
if not d.is_dir():
return []
out = []
for p in sorted(d.glob(f"{_ARTIFACT_PREFIX}*{_ARTIFACT_SUFFIX}")):
tag = p.name[len(_ARTIFACT_PREFIX) : -len(_ARTIFACT_SUFFIX)]
out.append((tag, p))
return out
def _resolve_checkpoint() -> str:
env = os.environ.get("GROOT_N1_7_LIBERO_CKPT")
if env:
if not Path(env).exists():
pytest.skip(f"GROOT_N1_7_LIBERO_CKPT={env} does not exist")
return env
try:
from huggingface_hub import snapshot_download
root = snapshot_download(
"nvidia/GR00T-N1.7-LIBERO",
local_files_only=True,
allow_patterns=["libero_10/*"],
)
except Exception as exc: # noqa: BLE001
pytest.skip(f"GR00T N1.7 LIBERO checkpoint not available locally: {exc}")
ckpt = Path(root) / "libero_10"
if not (ckpt / "config.json").exists():
pytest.skip(f"GR00T N1.7 LIBERO checkpoint incomplete at {ckpt}")
return str(ckpt)
def _load_artifact(path: Path):
data = np.load(path, allow_pickle=True)
original_action = torch.from_numpy(data["action_pred"]).float()
dtypes = dict(zip(data["meta_keys"].tolist(), data["meta_dtypes"].tolist(), strict=False))
inputs = {}
for key in data.files:
if not key.startswith("in::"):
continue
name = key[4:]
arr = data[key]
t = torch.from_numpy(np.asarray(arr))
declared = dtypes.get(key, "")
if "int" in declared or "long" in declared:
t = t.long()
inputs[name] = t
return original_action, inputs
def _unflatten(inputs: dict[str, torch.Tensor]) -> dict:
"""Rebuild the nested model-input dict from dot-prefixed flat keys."""
nested: dict = {}
for dotted, value in inputs.items():
parts = dotted.split(".")
cur = nested
for p in parts[:-1]:
cur = cur.setdefault(p, {})
cur[parts[-1]] = value
return nested.get("inputs", nested)
@pytest.fixture(scope="module")
def lerobot_model():
"""Load the LeRobot GR00T N1.7 model once (fp32 + SDPA) and reuse across tags."""
ckpt = _resolve_checkpoint()
from lerobot.policies.groot.groot_n1_7 import GR00TN17
model = GR00TN17.from_pretrained(
ckpt,
tune_llm=False,
tune_visual=False,
tune_projector=False,
tune_diffusion_model=False,
tune_vlln=False,
transformers_loading_kwargs={"trust_remote_code": True},
)
# fp32 + SDPA on both sides: bf16 + differing attention kernels otherwise introduce
# ~1e-2 numerical noise unrelated to the implementations.
model.compute_dtype = "float32"
model.config.compute_dtype = model.compute_dtype
model.to(device=DEVICE, dtype=torch.float32)
model.eval()
return model
_ARTIFACTS = _discover_artifacts()
@pytest.mark.skipif(
not _ARTIFACTS,
reason=(
"No GR00T N1.7 parity artifacts found. Generate them first in the original gr00t "
"env:\n .venv-original/bin/python tests/policies/groot/utils/dump_original_n1_7.py "
"--ckpt <ckpt> --out-dir tests/policies/groot/artifacts --device cuda"
),
)
@pytest.mark.parametrize("embodiment_tag,artifact", _ARTIFACTS, ids=[t for t, _ in _ARTIFACTS])
def test_groot_get_action_parity(embodiment_tag, artifact, lerobot_model):
"""Raw model.get_action(action_pred) parity per embodiment: original vs LeRobot."""
original_action, flat_inputs = _load_artifact(artifact)
model_inputs = _unflatten(flat_inputs)
# Align the flow-matching RNG exactly as the producer did (seed right before sampling).
torch.manual_seed(SEED)
if torch.cuda.is_available():
torch.cuda.manual_seed_all(SEED)
with torch.inference_mode():
out = lerobot_model.get_action(model_inputs)
lerobot_action = out["action_pred"].float().cpu()
t = min(original_action.shape[1], lerobot_action.shape[1])
d = min(original_action.shape[2], lerobot_action.shape[2])
original_action = original_action[:, :t, :d]
lerobot_action = lerobot_action[:, :t, :d]
diff = torch.abs(lerobot_action - original_action)
max_diff = diff.max().item()
print(
f"\n[{embodiment_tag}] shapes lerobot={tuple(lerobot_action.shape)} "
f"original={tuple(original_action.shape)} "
f"max|diff|={max_diff:.6e} mean|diff|={diff.mean().item():.6e}"
)
assert torch.allclose(lerobot_action, original_action, atol=ATOL, rtol=RTOL), (
f"GR00T N1.7 raw action_pred differs for embodiment '{embodiment_tag}' beyond "
f"atol={ATOL}, rtol={RTOL}: max|diff|={max_diff:.6e}"
)
+1
View File
@@ -0,0 +1 @@
"""Utilities shared by GR00T policy tests."""
@@ -0,0 +1,198 @@
#!/usr/bin/env python
# Copyright 2026 The HuggingFace Inc. team. All rights reserved.
# Licensed under the Apache License, Version 2.0 (the "License").
"""Producer (run in the ORIGINAL gr00t env): dump original GR00T N1.7 outputs + inputs.
The original NVIDIA ``gr00t`` package pins ``transformers==4.57.3`` (py3.10) and its
model-config dataclasses are incompatible with the ``transformers==5.x`` that the
LeRobot GR00T N1.7 integration requires. The two implementations therefore cannot be
imported in the same Python process. To keep the parity comparison FAIR, we run the
original model in its native env here and serialize, PER EMBODIMENT TAG:
* the exact pre-processed/collated model inputs (so the LeRobot side consumes the
byte-identical tensors -- same image preprocessing, tokenization, normalization),
* the random seed used right before the flow-matching sampler,
* the raw ``action_pred`` tensor returned by ``model.get_action`` (normalized space,
before any per-implementation action decoding).
Inputs are built GENERICALLY from the checkpoint metadata (no per-tag hardcoding):
state keys + dims come from ``statistics.json``; video + language keys come from the
processor's per-embodiment modality configs. This lets us test many embodiment tags
from the SAME checkpoint and confirm the LeRobot integration is not overfit to
``libero_sim``.
The companion pytest (run in the LeRobot env) loads each .npz, replays the identical
inputs + seed through the LeRobot GR00T N1.7 model, and asserts the outputs match.
Usage:
.venv-original/bin/python tests/policies/groot/utils/dump_original_n1_7.py \
--ckpt <path-to-GR00T-N1.7-LIBERO/libero_10> \
--out-dir tests/policies/groot/artifacts \
[--tags libero_sim,oxe_droid_relative_eef_relative_joint,...] \
[--device cuda] [--seed 42]
If --tags is omitted, every embodiment present in the checkpoint statistics is dumped.
"""
import argparse
import json
import os
from pathlib import Path
import numpy as np
import torch
IMAGE_SIZE = 256
BATCH_SIZE = 2
PROMPT = "pick up the black bowl and place it on the plate"
def load_statistics(ckpt: str) -> dict:
with open(os.path.join(ckpt, "statistics.json")) as f:
return json.load(f)
def make_observation(seed: int, video_keys, lang_key, state_spec):
"""Build a dummy observation dict generically from the embodiment metadata."""
rng = np.random.default_rng(seed)
video = {
k: rng.integers(0, 256, (BATCH_SIZE, 1, IMAGE_SIZE, IMAGE_SIZE, 3), dtype=np.uint8)
for k in video_keys
}
# One ndarray per state key, shape (B, T=1, key_dim); dim taken from statistics.
# Keys with dim 0 (e.g. disabled eef on some embodiments) are still emitted as
# present-but-empty so the processor's state transform finds every expected key.
state = {
k: rng.standard_normal((BATCH_SIZE, 1, dim)).astype(np.float32)
for k, dim in state_spec
}
language = {lang_key: [[PROMPT] for _ in range(BATCH_SIZE)]}
return {"video": video, "state": state, "language": language}
def dump_one_tag(policy, fair_model, tag, modality_cfg, state_spec, args, out_path):
from gr00t.data.types import MessageType
video_keys = modality_cfg["video"].modality_keys
lang_key = modality_cfg["language"].modality_keys[0]
observation = make_observation(args.seed, video_keys, lang_key, state_spec)
# Point the policy preprocessing at this embodiment (mirrors Gr00tPolicy.__init__).
policy.embodiment_tag = type(policy.embodiment_tag)(tag)
policy.modality_configs = {
k: v for k, v in policy.processor.get_modality_configs()[tag].items() if k != "rl_info"
}
policy.language_key = policy.modality_configs["language"].modality_keys[0]
torch.manual_seed(args.seed)
np.random.seed(args.seed)
unbatched = policy._unbatch_observation(observation)
processed = []
for obs in unbatched:
vla = policy._to_vla_step_data(obs)
processed.append(policy.processor([{"type": MessageType.EPISODE_STEP.value, "content": vla}]))
collated = policy.collate_fn(processed)
def to_dev(x):
if isinstance(x, torch.Tensor) and torch.is_floating_point(x):
return x.to(args.device, torch.float32)
if isinstance(x, torch.Tensor):
return x.to(args.device)
if isinstance(x, dict):
return {k: to_dev(v) for k, v in x.items()}
return x
collated = {k: to_dev(v) for k, v in collated.items()}
torch.manual_seed(args.seed)
with torch.inference_mode():
out = fair_model.get_action(**collated)
action_pred = out["action_pred"].float().cpu().numpy()
flat, meta = {}, {}
def flatten(prefix, obj):
if isinstance(obj, torch.Tensor):
arr = obj.float().cpu().numpy() if torch.is_floating_point(obj) else obj.cpu().numpy()
flat[f"in::{prefix}"] = arr
meta[f"in::{prefix}"] = str(obj.dtype)
elif isinstance(obj, dict):
for k, v in obj.items():
flatten(f"{prefix}.{k}" if prefix else k, v)
elif isinstance(obj, (list, tuple)):
flat[f"in::{prefix}"] = np.array(obj, dtype=object)
else:
flat[f"in::{prefix}"] = np.array(obj)
flatten("", collated)
out_path.parent.mkdir(parents=True, exist_ok=True)
np.savez(
out_path,
action_pred=action_pred,
seed=np.array(args.seed),
device=np.array(args.device),
embodiment_tag=np.array(tag),
meta_keys=np.array(list(meta.keys()), dtype=object),
meta_dtypes=np.array(list(meta.values()), dtype=object),
**flat,
)
print(f"[{tag}] action_pred {action_pred.shape} -> {out_path.name} ({os.path.getsize(out_path)} B)")
def main():
ap = argparse.ArgumentParser()
ap.add_argument("--ckpt", required=True)
ap.add_argument("--out-dir", required=True, help="directory for per-tag .npz files")
ap.add_argument("--tags", default="", help="comma-separated embodiment tags (default: all in stats)")
ap.add_argument("--device", default="cuda")
ap.add_argument("--seed", type=int, default=42)
args = ap.parse_args()
from gr00t.policy.gr00t_policy import Gr00tPolicy
from transformers import AutoConfig, AutoModel
stats = load_statistics(args.ckpt)
requested = [t.strip() for t in args.tags.split(",") if t.strip()] or list(stats.keys())
# Load the policy once (for its processor/preprocessing) on any valid tag.
bootstrap_tag = "libero_sim" if "libero_sim" in stats else requested[0]
policy = Gr00tPolicy(embodiment_tag=bootstrap_tag, model_path=args.ckpt, device=args.device)
all_modality = policy.processor.get_modality_configs()
# Load a FAIR model (SDPA + fp32) once and reuse across tags. Otherwise the
# original checkpoint default (flash_attention_2 + bf16) introduces kernel/rounding
# noise vs the LeRobot env (which has no flash_attn and runs SDPA).
cfg = AutoConfig.from_pretrained(args.ckpt, trust_remote_code=True)
cfg.use_flash_attention = False
cfg.load_bf16 = False
fair_model = AutoModel.from_pretrained(args.ckpt, config=cfg, trust_remote_code=True)
fair_model.to(device=args.device, dtype=torch.float32)
fair_model.eval()
out_dir = Path(args.out_dir)
done, skipped = [], []
for tag in requested:
if tag not in stats or tag not in all_modality:
print(f"[skip] {tag}: not present in checkpoint statistics/modality configs")
skipped.append(tag)
continue
state_spec = [(k, len(v["min"])) for k, v in stats[tag]["state"].items()]
try:
dump_one_tag(
policy, fair_model, tag, all_modality[tag], state_spec, args,
out_dir / f"original_n1_7_{tag}.npz",
)
done.append(tag)
except Exception as exc: # noqa: BLE001
print(f"[fail] {tag}: {type(exc).__name__}: {exc}")
skipped.append(tag)
print(f"\nDumped {len(done)} tags: {done}")
if skipped:
print(f"Skipped/failed {len(skipped)} tags: {skipped}")
if __name__ == "__main__":
main()