README.md

---
license: gemma
library_name: transformers
tags:
- robotics
- robot-control
- vision-language-action
- vla
- dm05
- dm0.5
- opendm
---

# DM05

![DM0.5](https://raw.githubusercontent.com/dexmal/opendm/main/docs/image/header.png)

<p align="center">
  <a href="https://www.dexmal.com/blog/dm0.5/index_en.html"><img src="https://img.shields.io/badge/📖-Tech_Blog-blue" alt="Tech Blog"></a>
  <a href="https://github.com/dexmal/opendm"><img src="https://img.shields.io/badge/GitHub-OpenDM-181717?logo=github" alt="GitHub"></a>
  <a href="https://maas.dexmal.com/"><img src="https://img.shields.io/badge/MaaS-Online-brightgreen.svg" alt="MaaS"></a>
</p>

## News

- [2026-07-17] DM0.5 has open-sourced the RoboTwin2.0 generalist model checkpoint, along with the supervised fine-tuning (SFT) code built upon the DM0.5 pretrained model. See the [DM05 RoboTwin2.0 Training and Evaluation Guide](https://github.com/dexmal/opendm/blob/main/docs/en/dm05_robotwin2.md).
- [2026-07-09] DM0.5 is officially released. Read the [technical blog](https://www.dexmal.com/blog/dm0.5/index_en.html) for more details.

## Introduction

DM0.5 is Dexmal's next-generation Vision-Language-Action model (VLA) for open-world robot control. It builds on the native embodied modeling approach introduced by DM0, with systematic upgrades for open-ended instructions, long-horizon tasks, dynamic disturbances, and multi-embodiment robot control.

OpenDM provides DM0.5 model weights, training and inference scripts, dataset registration examples, and evaluation workflows for researchers and developers to train, fine-tune, evaluate, and deploy the model.


## Fine-Tuned Models

| Model | Description | Checkpoint | Documentation |
| --- | --- | --- | --- |
| DM05-libero | LIBERO fine-tuned DM0.5 model for evaluation | [🤗 Dexmal/DM05-libero](https://huggingface.co/Dexmal/DM05-libero) | [Training & Evaluation](https://github.com/dexmal/opendm/blob/main/docs/en/dm05_libero.md) |
| DM05-robotwin2 | RoboTwin2.0 fine-tuned DM0.5 model for evaluation | [🤗 Dexmal/DM05-robotwin2](https://huggingface.co/Dexmal/DM05-robotwin2) | [Training & Evaluation](https://github.com/dexmal/opendm/blob/main/docs/en/dm05_robotwin2.md) |


## Quick Start

We recommend using Docker to set up the runtime environment first, which helps avoid version mismatches across CUDA, PyTorch, flash-attn, and other dependencies on the host machine.

### Requirements

```text
System requirements:
Ubuntu 20.04 / 22.04
NVIDIA GPU
NVIDIA Driver
Docker
NVIDIA Container Toolkit
Conda (optional, only required for local pip installation)

Recommended GPUs:
RTX 4090, A100, H100, H20
8 GPUs are recommended for training, and 1 GPU is sufficient for deployment inference.
```

### Docker Installation

```bash
git clone https://github.com/dexmal/opendm.git
cd opendm

docker run -it --rm --gpus all --network host \
  --name opendm \
  --shm-size=16g \
  -v "$PWD":/app/opendm \
  -w /app/opendm \
  dexmal/opendm:latest /bin/bash

# Run from the OpenDM repository root inside the container.
conda activate opendm
pip install -e .
```

### Local Installation

```bash
conda create -n opendm python=3.10 -y
conda activate opendm

pip install torch torchvision \
  --index-url https://download.pytorch.org/whl/cu128

pip install ninja packaging
MAX_JOBS=2 pip install flash-attn --no-build-isolation

# Enter the OpenDM repository root.
cd opendm
pip install -e .
```

## Inference

After installing the environment and initializing the source code, you can start the model inference service. The service loads the specified checkpoint and exposes an HTTP endpoint for benchmark clients or other applications to request action predictions. Use a checkpoint that contains `norm_stats.json`, or make sure the matching stats already exist under `./norm_stats/`.

```bash
script/dm05_launcher.sh \
  --task inference \
  --nproc_per_node 1 \
  --model-config.model-name-or-path ./checkpoints/DM05 \
  --model-config.chunk-size 50 \
  --inference-config.port 7891
```

Arguments:

- `--task`: task type. Use `inference` for inference.
- `--nproc_per_node`: number of GPUs on a single node. 1 GPU is sufficient for inference.
- `--model-config.model-name-or-path`: model checkpoint path.
- `--model-config.chunk-size`: action chunk length.
- `--inference-config.port`: inference service port.

During inference, the service first looks for `norm_stats.json` in the checkpoint directory. If it is not found, it falls back to the matching file under `./norm_stats/`, which is normally generated during training for the same dataset, action mode, and chunk size.

After the service starts, send a test request to verify that the endpoint returns a valid response:

```bash
bash tests/curl_demo.sh http://SERVER_IP:7891/process_frame
```

`/process_frame` accepts a `multipart/form-data` request:

- `text`: task instruction.
- `states`: JSON array of the current robot state. The dimension and order must match the model's training and normalization statistics.
- `image`: image files, one field per configured image key. The order must match `--inference-config.image-keys`.
- `robot_type`: optional built-in robot type. Currently only `DOS W1` is supported. It provides the robot state description when relative actions need to be converted back to absolute actions.
- `control_mode` and `speed`: text conditioning fields required when directly serving the pretrained `Dexmal/DM05` model. They are normally not required for SFT checkpoints unless your SFT data was trained with the same fields.

A successful response has the following shape.

```text
{
  "response": [
    [0.012, -0.034, 0.18, "..."],
    [0.015, -0.031, 0.17, "..."],
    ...
  ]
}
```

## Community and Support

- Learn more about Dexmal products and model updates on the [Dexmal website](https://www.dexmal.com/).
- If you encounter issues, please report them through [GitHub Issues](https://github.com/dexmal/opendm/issues).
- For further discussion, scan the [WeChat QR code](https://raw.githubusercontent.com/dexmal/opendm/main/docs/image/wechat.jpeg) to contact us.

We will continue to release more model weights, technical documentation, and examples. If this project is helpful to you, please consider giving us a star on GitHub [![GitHub](https://img.shields.io/github/stars/dexmal/opendm?color=5B5BD6)](https://github.com/dexmal/opendm). Your support helps us move forward.

## Citation

```bibtex
@misc{dm05,
    title  = {{DM0.5}: An Open-World Foundation Model for General-Purpose Embodied Intelligence},
    author = {{Dexmal Team}},
    month  = {July},
    year   = {2026},
    url    = {https://www.dexmal.com/blog/dm0.5/index_en.html}
}
```