lerobot/docs/source/index.mdx

# LeRobot

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  <a target="_blank" href="https://huggingface.co/lerobot">
    <img
      alt="LeRobot, Hugging Face Robotics Library"
      src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/lerobot/lerobot-logo-thumbnail.png"
    ></img>
  </a>
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**State-of-the-art machine learning for real-world robotics**

🤗 LeRobot provides a hardware-agnostic, Python-native interface for controlling real robots - from affordable arms like the SO-ARM101 to full humanoids. Plus the tools to record, store, and share the datasets they generate. Every dataset uses the standardized **LeRobotDataset** format (synchronized video + action/state data) and can be streamed directly from the [Hugging Face Hub](https://huggingface.co/lerobot).

🤗 On top of that data, LeRobot implements state-of-the-art policies - from lightweight imitation-learning models like ACT to large vision-language-action models like π₀ and SmolVLA - all trainable, shareable, and deployable with the same handful of CLI commands.

The goal: lower the barrier to entry for robotics, so that everyone can contribute to, and benefit from, shared datasets and pretrained models.

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  <a href="https://discord.gg/s3KuuzsPFb" target="_blank">
    <img alt="Discord" src="https://img.shields.io/badge/Discord-Join_the_Community-5865F2?style=flat&logo=discord&logoColor=white">
  </a>
  <a href="https://x.com/LeRobotHF" target="_blank">
    <img alt="X (Twitter)" src="https://img.shields.io/badge/X-Follow_%40LeRobotHF-black?style=flat&logo=x&logoColor=white">
  </a>
  <a href="https://huggingface.co/lerobot" target="_blank">
    <img alt="Hugging Face Hub" src="https://img.shields.io/badge/HF_Hub-Models_%26_Datasets-FFD21E?style=flat">
  </a>
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  <img src="../../media/readme/robots_control_video.webp" width="640px" alt="Reachy 2 Demo">
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## How It Works

**Teleoperate → Record → Train → Deploy**

1. **Teleoperate** - control the robot yourself (with a leader arm, keyboard, or phone) so it can learn from your movements.
2. **Record** - each demonstration is saved as a dataset: synchronized camera video plus the actions you took.
3. **Train** - a policy (the neural network that will control the robot) learns to imitate your demonstrations.
4. **Deploy** - run the trained policy on the robot and watch it complete the task on its own.

## Get Started

New here? [Install LeRobot](./installation), then pick your path:

<div class="grid grid-cols-1 md:grid-cols-3 gap-4 my-6">
  <div class="border dark:border-gray-700 rounded-lg p-4 shadow">
    <div class="text-lg font-semibold mb-2">🔧 I have a robot</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      LeRobot supports a wide range of arms and mobile robots. Popular picks:
    </p>
    <ul class="text-gray-700 dark:text-gray-300 text-sm list-disc pl-5 mb-2">
      <li>
        <a href="./so101">SO-101</a> - our flagship, low-cost arm
      </li>
      <li>
        <a href="./lekiwi">LeKiwi</a> - a mobile base with an arm on top
      </li>
      <li>
        <a href="./koch">Koch v1.1</a> - a long-time community favorite
      </li>
      <li>
        or find yours under <strong>Robots</strong> in the sidebar
      </li>
    </ul>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Once it's assembled and calibrated, record a dataset and train your first
      policy with the <a href="./il_robots">imitation learning tutorial</a> - or
      skip the CLI entirely with <a href="./lelab">LeLab</a>, a browser GUI for
      the same workflow.
    </p>
  </div>
  <div class="border dark:border-gray-700 rounded-lg p-4 shadow">
    <div class="text-lg font-semibold mb-2">💻 No hardware yet</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      You can still train and evaluate policies without owning a robot:
    </p>
    <ul class="text-gray-700 dark:text-gray-300 text-sm list-disc pl-5 mb-2">
      <li>
        train on an existing
        <a href="https://huggingface.co/datasets?other=LeRobot">
          LeRobot dataset
        </a>
        from the Hub
      </li>
      <li>
        evaluate in <a href="./envhub">simulation</a>, against benchmarks like
        LIBERO or Meta-World
      </li>
      <li>
        try the free <a href="./notebooks">Colab notebooks</a> - nothing to
        install
      </li>
    </ul>
  </div>
  <div class="border dark:border-gray-700 rounded-lg p-4 shadow">
    <div class="text-lg font-semibold mb-2">🤝 I want to contribute</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Start with the <a href="./contributing">Contributing guide</a>, then
      <a href="./bring_your_own_policies">add a new policy</a> or
      <a href="./integrate_hardware">bring your own hardware</a>.
    </p>
  </div>
</div>

## Explore the Docs

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  <a
    class="!no-underline border dark:border-gray-700 rounded-lg p-4 shadow hover:shadow-lg"
    href="./cheat-sheet"
  >
    <div class="font-semibold mb-1">📋 Cheat Sheet</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Every LeRobot CLI command, copy-paste ready.
    </p>
  </a>
  <a
    class="!no-underline border dark:border-gray-700 rounded-lg p-4 shadow hover:shadow-lg"
    href="./hardware_guide"
  >
    <div class="font-semibold mb-1">🖥️ Compute & Hardware Guide</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Which policy fits your GPU, and how long training takes.
    </p>
  </a>
  <a
    class="!no-underline border dark:border-gray-700 rounded-lg p-4 shadow hover:shadow-lg"
    href="./lerobot-dataset-v3"
  >
    <div class="font-semibold mb-1">🗂️ LeRobotDataset</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Load, stream, and visualize robot datasets from the Hub.
    </p>
  </a>
  <a
    class="!no-underline border dark:border-gray-700 rounded-lg p-4 shadow hover:shadow-lg"
    href="./lelab"
  >
    <div class="font-semibold mb-1">🖼 LeLab</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      A browser GUI for calibrating, recording, and training - no CLI required.
    </p>
  </a>
  <a
    class="!no-underline border dark:border-gray-700 rounded-lg p-4 shadow hover:shadow-lg"
    href="./act"
  >
    <div class="font-semibold mb-1">🧠 Policies</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Start with ACT, our recommended first policy - or browse SmolVLA, π₀, and
      more in the sidebar.
    </p>
  </a>
  <a
    class="!no-underline border dark:border-gray-700 rounded-lg p-4 shadow hover:shadow-lg"
    href="./envhub"
  >
    <div class="font-semibold mb-1">🎮 Simulation & Benchmarks</div>
    <p class="text-gray-700 dark:text-gray-300 text-sm">
      Train and evaluate in simulated environments before touching real
      hardware.
    </p>
  </a>
</div>

## Common Problems

Running into issues? A few of the most frequent ones:

- **Blurry or unusable camera footage** - lighting matters more than resolution. See the [Cameras](./cameras) guide.
- **Build or install errors** (`cmake`, `ffmpeg`, CUDA) - see the Troubleshooting section of the [Installation guide](./installation).
- **Not sure which policy fits your GPU** - check the [Compute & Hardware Guide](./hardware_guide).
- **Still stuck?** Ask on [Discord](https://discord.gg/s3KuuzsPFb) - the community (and the LeRobot team) is there to help.