# RDT-1B: robot AI research model

Robotics Diffusion Transformer (RDT-1B): a 1B parameter diffusion-based VLA for bimanual manipulation. Developed by Tsinghua University. Competitive with pi0 and OpenVLA on real-world dexterous tasks.

- **Slug:** rdt-1b
- **Type:** Research model
- **Maturity (DEPLOY ladder):** Research
- **Open source:** yes

## Architecture

Diffusion Transformer, 1B params


## Common questions

### What is RDT-1B?

Robotics Diffusion Transformer (RDT-1B): a 1B parameter diffusion-based VLA for bimanual manipulation. Developed by Tsinghua University. Competitive with pi0 and OpenVLA on real-world dexterous tasks.

### Is RDT-1B open source?

Yes. RDT-1B is recorded as open-source / open-weights on the DEPLOY registry, meaning model weights or source code are publicly available.

### What type of AI is RDT-1B?

RDT-1B is a research model, built on a Diffusion Transformer, 1B params architecture on the DEPLOY registry.

### What is RDT-1B's maturity stage?

RDT-1B is at the research stage on the DEPLOY maturity ladder. Research stage means active development without commercial deployments on file.

### Which robots run on RDT-1B?

No robot models on the DEPLOY registry are recorded as running RDT-1B. DEPLOY wires brain-to-model connections only when the wiring is verifiable from primary sources; absence may reflect pre-deployment or unverified manufacturer claims.


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