Research labChina
Jun Zhu's statistical AI and learning group at Tsinghua, which released the RDT-1B and RDT2 Robotics Diffusion Transformer models.
TSAIL (Tsinghua Statistical Artificial Intelligence & Learning group) is a machine-learning research group at Tsinghua University working on probabilistic modeling, reinforcement learning, adversarial robustness and related areas. Its robotics work includes RDT-1B (Robotics Diffusion Transformer), a 1.2B-parameter diffusion foundation model for bimanual manipulation released in October 2024 (arXiv 2410.07864), pre-trained on multi-robot datasets and fine-tuned on a self-collected bimanual dataset of over 6,000 episodes. The RDT authors are affiliated with Tsinghua's Department of Computer Science & Technology, Institute for AI, BNRist Center, Tsinghua-Bosch Joint ML Center and THBI Lab.
Sources: ml.cs.tsinghua.edu.cn (17 Oct 2026) · arxiv.org (10 Oct 2024) · rdt-robotics.github.io (17 Oct 2026)
Research lab · University research group at Tsinghua University; no separate funding
#35 of 104 model companies · score 44.0 / 100 · updated 19 Oct 2026
Each bar shows an input from 0 to 100% before weighting. 2 of 2 listed models have open weights. Most-starred official repository: thu-ml/RoboticsDiffusionTransformer (1.8k stars, 19 Oct 2026).
The score (0–100) measures public, checkable evidence about a company's robot models. It does not measure private capability. A company that publishes no benchmark results and no weights can still have strong models. Every input is computed from the data on each company page, and every number there links to its source.
| Input | Weight | How it is measured |
|---|---|---|
| Published benchmarks | 35% | For each scored benchmark, the company's best result divided by the best result any company has published, averaged over the benchmarks it reports. No published results scores 0. Results come only from the model's own paper, model card or the official benchmark leaderboard. Scored: LIBERO (4-suite average success, %); SimplerEnv Google Robot, visual matching (%); SimplerEnv Google Robot, variant aggregation (%); SimplerEnv WidowX / Bridge (%); CALVIN ABC→D (average length, 0–5); RoboArena (pairwise rating). |
| Open weights | 20% | Share of the company's listed models whose weights the public can download. |
| Adoption | 20% | GitHub stars on the company's most-starred official model repository, on a log scale relative to the most-starred repository in the list. Hugging Face downloads are shown on company pages but not scored, because gated repositories report zero. |
| Released models | 15% | Number of publicly announced, named models, capped at 5. |
| Disclosed funding | 10% | The sum of the funding rounds listed on the company's profile that were disclosed in USD, on a log scale from $10M to the largest sum in the list. Rounds reported only in other currencies are listed but not converted or counted. This input applies only to private startups and robot makers. For big-tech divisions, research labs and listed companies it is n/a, and its weight is shared across the other inputs in proportion. |
Sources. arXiv papers and official model cards for benchmarks and parameters; official leaderboards (RoboArena); the GitHub and Hugging Face APIs for stars and downloads; company announcements and established press for funding. Missing values are shown as n/a, never estimated.
Updated 19 Oct 2026. Benchmark protocols differ between papers, for example in fine-tuning and number of trials, so small gaps between close scores are not meaningful.
Open weightsVLA
Sequel to RDT-1B trained on 10,000+ hours of UMI gripper data, released as RDT2-VQ (Qwen2.5-VL-7B with residual-VQ action tokens) and RDT2-FM (flow-matching action expert) for zero-shot cross-embodiment use.
No benchmark results on a shared public benchmark have been published for this model.
Open weightsPolicy
Diffusion transformer foundation policy for bimanual manipulation pretrained on multi-robot data; a 170M variant was also released.
No benchmark results on a shared public benchmark have been published for this model.
