Is Cosmos3-H-Embodied-Nano state of the art?Pending benchmarks.Announced Oct 20, 2026; no independent results yet.
NVIDIA's 16B surgical-robotics model for dVRK-style and other surgical robots. One checkpoint predicts robot actions and endoscopic video, serving as world model (forward dynamics), policy and inverse dynamics model. Open weights under the NVIDIA Open Model License; the card says it is ready for commercial use.
The details so far
- Lab
- NVIDIA
- Announced
- Oct 20, 2026
- API
- Not yet
- Open weights
- Published
- Parameters
- 16B (Cosmos3-Nano size; about 7B updated in post-training)
- Type
- Mixture-of-Transformers world foundation model for surgical robotics: forward dynamics, inverse dynamics and policy in one model
- Base model
- Cosmos3-Nano (Qwen3-VL-8B reasoning tower plus a diffusion generation expert), post-trained for 50,000 iterations
- Training data
- Open-H-Embodiment surgical robotics data, 15 dataset families (11 public on Hugging Face)
- Clips
- 2.4 s: 25 frames and 24 actions at 10 Hz, 256p resolution tier
- License
- NVIDIA Open Model License; ready for commercial or non-commercial use (model card)
- Predecessor
- Cosmos-H-Surgical-Simulator (forward dynamics only, 2B)
- Hugging Face repo created
- Oct 19, 2026 (UTC); the card lists Oct 20, 2026 as the release date
Tags marked unsure are not stated on the lab's own pages.
What would let us call it
Verdicts use only independent boards we already track. Two consecutive snapshots are required before any crown.
- Publicly announced with a source
- Usable by the public (API or weights)
- Listed on an independent board we track
- Enough results for a rank in a category
- Holds across two snapshots (crowns only)
What the lab claims
Self-reported. Shown for context; not used in any verdict.
Lab claim: on held-out clips, inverse-dynamics action error is 8.6× below a mean-trajectory baseline, and forward-dynamics video beats Cosmos-H-Surgical-Simulator on dVRK per-pixel metrics.
Sources
REPOCosmos3-H-Embodied-Nano on Hugging Facehuggingface.co/nvidia/Cosmos3-H-Embodied-Nano · Oct 20, 2026REPOCosmos3-H-Embodied-Nano on GitHub (NVIDIA-Medtech)github.com/NVIDIA-Medtech/Cosmos3-H-Embodied-Nano · Oct 20, 2026PRESSHuggingPapers post on Xx.com/HuggingPapers/status/2112599188899045456 · Oct 20, 2026Tracking continues until an independent board lists it.