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---
license: mit
pretty_name: SMART-Data
tags:
  - robotics
  - manipulation
  - embodied-ai
  - lerobot
  - simulation
---

# SMART-Data

![SMART-Data overview](assets/slide4-4k.png)

<p align="center">
  <a href="https://teamillusion-smart.github.io/"><img alt="Project: teamillusion-smart.github.io" src="https://img.shields.io/badge/Project-teamillusion--smart.github.io-2563eb?logo=github&logoColor=white&style=flat-square"></a> <a href="https://arxiv.org/abs/2610.07652"><img alt="arXiv: 2610.07652" src="https://img.shields.io/badge/arXiv-2610.07652-b31b1b?logo=arxiv&logoColor=white&style=flat-square"></a>
</p>

**SMART-Data** is a large-scale synthetic dataset for articulated-object manipulation, generated entirely in simulation with a scalable synthesis pipeline.<br>
It covers five robot setups and a hierarchical taxonomy of atomic, composite, and long-horizon tasks, spanning 23 manipulation skills, 44 task types, and diverse articulated objects with revolute, prismatic, and compound joints.<br>
The released demonstrations are organized in LeRobot v3.0 format for robot learning and VLA pretraining.

## 🔭 Dataset Overview

![SMART-Data statistics](assets/06_smart_data_statistics_3840x2160.png)

*Statistics of SMART-Data, including robot-setup distribution, task complexity, and articulated-object coverage.*

## ✨ Dataset Features

- **Large-scale synthetic data:** SMART-Data contains over 1M simulated manipulation episodes, approximately 500M frames, and over 4,600 hours of demonstrations.
- **Five robot setups:** The dataset covers ARX AC One, R1Pro, Dual RM75, Dual Franka, and Single Franka, providing demonstrations from both single-arm and dual-arm embodiments.
- **Hierarchical task design:** Tasks are organized into atomic, composite, and long-horizon categories, supporting primitive skills as well as multi-stage compositional reasoning.
- **Broad skill coverage:** The dataset spans 23 manipulation skills and 44 task types across approximately 10K task YAML configurations.
- **Diverse articulated objects:** It covers 23 of the 88 functional object categories in the SMART-Sim asset library, including 2,507 articulated objects with revolute, prismatic, and compound joints.
- **Rich interaction diversity:** Demonstrations vary in object pose, robot initialization, camera extrinsics, visual appearance, and physical properties.
- **Multi-view observations:** The data include global and arm-specific camera views for learning manipulation policies from complementary perspectives.
- **Scalable scene coverage:** The released trajectories are collected across 1,122 distinct scenes.
- **VLA-ready format:** All demonstrations are stored in LeRobot v3.0 format for behavior cloning, VLA pretraining, and downstream manipulation research.

## 🏁 Get Started

### ⬇️ Download

```bash
# Make sure you have Git LFS installed
git lfs install

# For private repositories, use a Hugging Face access token with read access
git clone https://huggingface.co/datasets/TeleEmbodied/SMART-Data

# Clone without downloading the large files, leaving only their pointers
GIT_LFS_SKIP_SMUDGE=1 git clone https://huggingface.co/datasets/TeleEmbodied/SMART-Data
```

### 🗂️ Dataset Structure

The following example shows the fully expanded dataset layout:

```text
SMART-Data/
├── AC1/                                             # robot platform
│   ├── atomic/                                      # primitive tasks
│   │   ├── left/
│   │   │   └── left_close_dishwasher/               # task
│   │   │       ├── data/
│   │   │       │   └── chunk-000/
│   │   │       │       ├── file-000.parquet
│   │   │       │       ├── file-001.parquet
│   │   │       │       ├── file-002.parquet
│   │   │       │       └── ...
│   │   │       ├── meta/
│   │   │       │   ├── episodes/
│   │   │       │   │   └── chunk-000/
│   │   │       │   │       ├── file-000.parquet
│   │   │       │   │       ├── file-001.parquet
│   │   │       │   │       ├── file-002.parquet
│   │   │       │   │       └── ...
│   │   │       │   ├── info.json
│   │   │       │   ├── norm_stats.json
│   │   │       │   ├── stats.json
│   │   │       │   ├── tasks.parquet
│   │   │       │   └── ...
│   │   │       ├── videos/
│   │   │       │   ├── observation.images.camera_global/
│   │   │       │   │   └── chunk-000/
│   │   │       │   │       ├── file-000.mp4
│   │   │       │   │       ├── file-001.mp4
│   │   │       │   │       └── ...
│   │   │       │   ├── observation.images.camera_left/
│   │   │       │   │   └── ...
│   │   │       │   ├── observation.images.camera_right/
│   │   │       │   │   └── ...
│   │   │       │   └── ...
│   │   │       └── ...
│   │   ├── right/
│   │   │   └── ...
│   │   └── ...
│   ├── composite/                                   # multi-skill tasks
│   │   └── ...
│   └── long_horizon/                                # long-horizon tasks
│       └── ...
├── Franka_dual/
│   └── ...
├── Franka_single/
│   └── ...
├── R1Pro/
│   └── ...
└── RM75/
    └── ...
```

### 📄 Data Format

```text
<task>/                         # LeRobot dataset
├── data/                       # frame-level data
│   └── chunk-000/
│       └── file-000.parquet    # action, state, and timestamps
├── meta/                       # dataset metadata
│   ├── info.json               # schema and dataset information
│   ├── norm_stats.json
│   ├── stats.json
│   ├── tasks.parquet           # task instruction
│   └── episodes/               # episode metadata
└── videos/                     # camera streams
    ├── observation.images.camera_global/
    ├── observation.images.camera_left/
    └── observation.images.camera_right/
```

#### 🔎 Example `meta/info.json`

```json
{
  "codebase_version": "v3.0",
  "robot_type": "AC1",
  "total_episodes": 500,
  "total_frames": 170756,
  "total_tasks": 1,
  "chunks_size": 1000,
  "data_files_size_in_mb": 100,
  "video_files_size_in_mb": 200,
  "fps": 30,
  "splits": {
    "train": "0:500"
  },
  "data_path": "data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet",
  "video_path": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4",
  "features": {
    "observation.images.camera_global": {
      "dtype": "video",
      "shape": [540, 960, 3],
      "names": ["height", "width", "rgb"],
      "info": {
        "video.height": 540,
        "video.width": 960,
        "video.codec": "h264",
        "video.pix_fmt": "yuv420p",
        "video.is_depth_map": false,
        "video.fps": 30,
        "video.channels": 3,
        "has_audio": false
      }
    },
    "observation.images.camera_left": {
      "dtype": "video",
      "shape": [360, 640, 3],
      "names": ["height", "width", "rgb"],
      "info": {
        "video.height": 360,
        "video.width": 640,
        "video.codec": "h264",
        "video.pix_fmt": "yuv420p",
        "video.is_depth_map": false,
        "video.fps": 30,
        "video.channels": 3,
        "has_audio": false
      }
    },
    "observation.images.camera_right": {
      "dtype": "video",
      "shape": [360, 640, 3],
      "names": ["height", "width", "rgb"],
      "info": {
        "video.height": 360,
        "video.width": 640,
        "video.codec": "h264",
        "video.pix_fmt": "yuv420p",
        "video.is_depth_map": false,
        "video.fps": 30,
        "video.channels": 3,
        "has_audio": false
      }
    },
    "action": {
      "dtype": "float32",
      "shape": [14],
      "names": {
        "motors": [
          "left_arm_0", "left_arm_1", "left_arm_2",
          "left_arm_3", "left_arm_4", "left_arm_5",
          "right_arm_0", "right_arm_1", "right_arm_2",
          "right_arm_3", "right_arm_4", "right_arm_5",
          "left_gripper", "right_gripper"
        ]
      }
    },
    "observation.state": {
      "dtype": "float32",
      "shape": [14],
      "names": [
        "left_arm_0", "left_arm_1", "left_arm_2",
        "left_arm_3", "left_arm_4", "left_arm_5",
        "right_arm_0", "right_arm_1", "right_arm_2",
        "right_arm_3", "right_arm_4", "right_arm_5",
        "left_gripper", "right_gripper"
      ]
    },
    "timestamp": {
      "dtype": "float32",
      "shape": [1],
      "names": null
    },
    "frame_index": {
      "dtype": "int64",
      "shape": [1],
      "names": null
    },
    "episode_index": {
      "dtype": "int64",
      "shape": [1],
      "names": null
    },
    "index": {
      "dtype": "int64",
      "shape": [1],
      "names": null
    },
    "task_index": {
      "dtype": "int64",
      "shape": [1],
      "names": null
    }
  }
}
```