Files
lerobot/README.md
Bryson Jones 2e069b1c47 Feature/add multitask diffusion transformer policy implementation (#2545)
* Add multitask diffusion transformer policy

Add multitask diffusion transformer policy

* expand the observation encoder to support differnt size encoders for vision and text

* add RoPE attention module as this is shown to help training dynamics and generation quality for DiTs

* update readme and citations for multitask dit policy

* remove dino vision encoder and simplify text and vision encoders by removing inheritance structure

* adjust factory comment

* update docstring for multitask dit policy processor file

* simplify config for multitask dit by merging and flattening everything, then adding comments to denote where some parameters are only used for specific objectives

* add references to the modeling file comments

* merge all modules files into the main modeling file

* add torch.no_grad decorators

* split up select action return statement

* remove redundant asserts

* add tutorial to training with multi_task_dit

* fix bugs when testing on hardware

* remove environment state conditioning

* update typo in test instruction comment

* add processor tests to multitask dit tests

* move policy to top of file

* use constants for indexing into batches and remove env state references

* remove the base classes since we don't need to be able to extend

* fix nit formatting in generate actions fcn

* reformat and clean up tutorial for multitask dit policy

* add more descriptions and depth to multitask dit tutorial

* note origins of each training objective

* rename config param for multiple vision encoders

* refactor code to perform task tokenization in the processor instead of in the modeling code for multitask dit

* add multitask dit to toc for docs

* add conditional transformers import to match all other policies that use transformers lib

* add test handling for multitask dit when transformers isnt available

* skip tests without transformers

* remove cropping of images smaller than the crop size

* add kwargs arg to multitask dit constructor

* add wallx dep conflict management for multitask dit policy

* use hyphens for cleanliness in pyproject.toml

* add conflict management to pyproject toml for pi conflict for mtdp as well

* update tests script to not use unnecessary uv sync call which resolves dependencies that do not need to run. This drastically reduces CI run time

* revert fast tests edits

* update docs and readme files, fixing some typos and adding multitask dit to readme

* chore(dependencies): upgrade transformers + hggingface-hub + peft + scipy

* chore(dependencies): bump pi0 family to transformers v5

* chore(dependencies): bump wall x to transformers v5

* chore(dependencies): bump gr00t to transformers v5

* chore(style): fix pre-commit

* fix(policy): xvla forced_bos_token missing

* test(rl): skip ci tests for resnet10

* Fix: full pi models support for transformer v5 (#2967)

* fix(pi): remove loss truncation

* fix(pi): remove state padding before tokenization

* fix(pi): fix image padding value

* fix from_pretrain

* add transformer v5 changes

* remove reference

* more fixes

* make it work

* add support for rest of pi family

* add pifast work

* more changes

* more changes

* more cleanup

* fix torch params

* dtype fix

* torch compile

* embed mismatch fix

* revert groot

* more nit fixes

* remove unused classes

* more fixes

* revert

* nit

* torch dtype warning fix

* but back dynamic renaming

* add tie embedding

---------

Co-authored-by: Yufei Sun <skieyfly@gmail.com>

* chore: fix XVLA in transformers v5 (#3006)

* test(policies): enable wall x CI testing

* style(test): pre-commit check

* style(test): pre-commit

---------

Signed-off-by: Bryson Jones <63133702+brysonjones@users.noreply.github.com>
Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>
Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>
Co-authored-by: Jade Choghari <chogharijade@gmail.com>
Co-authored-by: Yufei Sun <skieyfly@gmail.com>
Co-authored-by: Steven Palma <steven.palma@huggingface.co>
2026-03-28 00:41:26 +01:00

9.4 KiB

LeRobot, Hugging Face Robotics Library

Tests Python versions License Status Version Contributor Covenant Discord

LeRobot aims to provide models, datasets, and tools for real-world robotics in PyTorch. The goal is to lower the barrier to entry so that everyone can contribute to and benefit from shared datasets and pretrained models.

🤗 A hardware-agnostic, Python-native interface that standardizes control across diverse platforms, from low-cost arms (SO-100) to humanoids.

🤗 A standardized, scalable LeRobotDataset format (Parquet + MP4 or images) hosted on the Hugging Face Hub, enabling efficient storage, streaming and visualization of massive robotic datasets.

🤗 State-of-the-art policies that have been shown to transfer to the real-world ready for training and deployment.

🤗 Comprehensive support for the open-source ecosystem to democratize physical AI.

Quick Start

LeRobot can be installed directly from PyPI.

pip install lerobot
lerobot-info

Important

For detailed installation guide, please see the Installation Documentation.

Robots & Control

Reachy 2 Demo

LeRobot provides a unified Robot class interface that decouples control logic from hardware specifics. It supports a wide range of robots and teleoperation devices.

from lerobot.robots.myrobot import MyRobot

# Connect to a robot
robot = MyRobot(config=...)
robot.connect()

# Read observation and send action
obs = robot.get_observation()
action = model.select_action(obs)
robot.send_action(action)

Supported Hardware: SO100, LeKiwi, Koch, HopeJR, OMX, EarthRover, Reachy2, Gamepads, Keyboards, Phones, OpenARM, Unitree G1.

While these devices are natively integrated into the LeRobot codebase, the library is designed to be extensible. You can easily implement the Robot interface to utilize LeRobot's data collection, training, and visualization tools for your own custom robot.

For detailed hardware setup guides, see the Hardware Documentation.

LeRobot Dataset

To solve the data fragmentation problem in robotics, we utilize the LeRobotDataset format.

  • Structure: Synchronized MP4 videos (or images) for vision and Parquet files for state/action data.
  • HF Hub Integration: Explore thousands of robotics datasets on the Hugging Face Hub.
  • Tools: Seamlessly delete episodes, split by indices/fractions, add/remove features, and merge multiple datasets.
from lerobot.datasets.lerobot_dataset import LeRobotDataset

# Load a dataset from the Hub
dataset = LeRobotDataset("lerobot/aloha_mobile_cabinet")

# Access data (automatically handles video decoding)
episode_index=0
print(f"{dataset[episode_index]['action'].shape=}\n")

Learn more about it in the LeRobotDataset Documentation

SoTA Models

LeRobot implements state-of-the-art policies in pure PyTorch, covering Imitation Learning, Reinforcement Learning, and Vision-Language-Action (VLA) models, with more coming soon. It also provides you with the tools to instrument and inspect your training process.

Gr00t Architecture

Training a policy is as simple as running a script configuration:

lerobot-train \
  --policy=act \
  --dataset.repo_id=lerobot/aloha_mobile_cabinet
Category Models
Imitation Learning ACT, Diffusion, VQ-BeT, Multitask DiT Policy
Reinforcement Learning HIL-SERL, TDMPC & QC-FQL (coming soon)
VLAs Models Pi0Fast, Pi0.5, GR00T N1.5, SmolVLA, XVLA

Similarly to the hardware, you can easily implement your own policy & leverage LeRobot's data collection, training, and visualization tools, and share your model to the HF Hub

For detailed policy setup guides, see the Policy Documentation.

Inference & Evaluation

Evaluate your policies in simulation or on real hardware using the unified evaluation script. LeRobot supports standard benchmarks like LIBERO, MetaWorld and more to come.

# Evaluate a policy on the LIBERO benchmark
lerobot-eval \
  --policy.path=lerobot/pi0_libero_finetuned \
  --env.type=libero \
  --env.task=libero_object \
  --eval.n_episodes=10

Learn how to implement your own simulation environment or benchmark and distribute it from the HF Hub by following the EnvHub Documentation

Resources

Citation

If you use LeRobot in your project, please cite the GitHub repository to acknowledge the ongoing development and contributors:

@misc{cadene2024lerobot,
    author = {Cadene, Remi and Alibert, Simon and Soare, Alexander and Gallouedec, Quentin and Zouitine, Adil and Palma, Steven and Kooijmans, Pepijn and Aractingi, Michel and Shukor, Mustafa and Aubakirova, Dana and Russi, Martino and Capuano, Francesco and Pascal, Caroline and Choghari, Jade and Moss, Jess and Wolf, Thomas},
    title = {LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch},
    howpublished = "\url{https://github.com/huggingface/lerobot}",
    year = {2024}
}

If you are referencing our research or the academic paper, please also cite our ICLR publication:

ICLR 2026 Paper
@inproceedings{cadenelerobot,
  title={LeRobot: An Open-Source Library for End-to-End Robot Learning},
  author={Cadene, Remi and Alibert, Simon and Capuano, Francesco and Aractingi, Michel and Zouitine, Adil and Kooijmans, Pepijn and Choghari, Jade and Russi, Martino and Pascal, Caroline and Palma, Steven and Shukor, Mustafa and Moss, Jess and Soare, Alexander and Aubakirova, Dana and Lhoest, Quentin and Gallou\'edec, Quentin and Wolf, Thomas},
  booktitle={The Fourteenth International Conference on Learning Representations},
  year={2026},
  url={https://arxiv.org/abs/2602.22818}
}

Contribute

We welcome contributions from everyone in the community! To get started, please read our CONTRIBUTING.md guide. Whether you're adding a new feature, improving documentation, or fixing a bug, your help and feedback are invaluable. We're incredibly excited about the future of open-source robotics and can't wait to work with you on what's next—thank you for your support!

SO101 Video

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