As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/m/cosmos-reason-2/

# Cosmos Reason 2

NVIDIA, Cosmos family. Status: current. Type: multimodal model. Released: 2025-12-19. Training cutoff: not published.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Hugging Face | `nvidia/Cosmos-Reason2-8B` |  | https://huggingface.co/nvidia/Cosmos-Reason2-8B |
| Hugging Face | `nvidia/Cosmos-Reason2-2B` |  | https://huggingface.co/nvidia/Cosmos-Reason2-2B |

## Pricing

- Price not published.
- Last checked: 2026-09-29

## Specs

- Input: text, image, video
- Output: text
- Context window: 256,000 tokens
- Max output: not published
- Open weights: yes
- Licence: NVIDIA Open Model License (commercial use allowed; HF repo gated - accept terms)

## What it has not seen

- No published training cutoff. Counted from its release (2025-12-19): at least 1,962 AI events since (449 major, 85 historic), as of 2026-11-13.
- Everything since November 2025: https://postcutoff.com/since/2025-11/

## What stands out

- Physical-AI reasoning VLM: Spatio-temporal video reasoning, 2D/3D point and box localization, robot planning; 8B beats base Qwen3-VL-8B on robotics (56.90 vs 53.08) and self-driving (67.85 vs 46.38) evals per model card. Source: https://huggingface.co/nvidia/Cosmos-Reason2-8B
- Backbone for GR00T N1.7 (found after launch): Cosmos-Reason2-2B is the VLM backbone of Isaac GR00T N1.7. Source: https://github.com/NVIDIA/Isaac-GR00T

## Notes

Based on Qwen3-VL (8B variant from Qwen3-VL-8B-Instruct, 8.7B params, 32 GB+ GPU). Initial release 2025-12-19, updated 2026-03-10; promoted at CES 2026. Up to 256K input tokens. Its role is folded into Cosmos 3 for new projects.

Sources: [Cosmos-Reason2-8B card](https://huggingface.co/nvidia/Cosmos-Reason2-8B), [NVIDIA forum: CES 2026 Cosmos announcements](https://forums.developer.nvidia.com/t/nvidia-cosmos-announcements-at-ces-2026/356629).

Model page: https://postcutoff.com/m/cosmos-reason-2/