Physical reasoning VLM

NVIDIA Cosmos Reason

NVIDIA Cosmos Reason is a specialized Cosmos release with a defined physical reasoning vlm role; the inspected repository now directs future development to Cosmos 3.

Source contextPrimary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Reviewed recordLast reviewed 1 sources ↗8 sourced fields

Model role

Reason2 performs physical-scene interpretation and natural-language reasoning. It is not itself an actuator-command interface; a downstream policy or planner must define execution.

Source contextPrimary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Release lifecycle

The repository states that active development has moved to Cosmos 3. Retaining this version is useful for reproducing earlier work, but buyers should check the new platform for supported deployment paths.

Source contextPrimary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

License boundary

Code and model weights use different licenses. Third-party components have their own terms, so code availability alone does not determine every artifact’s permitted reuse.

Source contextPrimary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Model identity

Developer
NVIDIA
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Exact version / scope
Cosmos-Reason2
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Category
Physical reasoning VLM
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Access model
Public model weights and source code
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

License
Apache-2.0 code; NVIDIA Open Model License for models
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Inputs, outputs & embodiment

Inputs
Images, video and language
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Outputs
Text reasoning and planning
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Embodiment
Not publicly disclosed

Implementation & training

Compute
Not publicly disclosed
Training-data disclosures
Not publicly disclosed
Integrations
Not publicly disclosed

Additional disclosed fields

Status
Limited maintenance; future development moved to Cosmos 3
Primary specReviewed
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Reported benchmark results

Context before scores. Results from different benchmarks are not directly comparable. A simulation result does not establish real-world reliability, safety or commercial availability.
No result meets our complete revision and methodology requirements for this record yet. Inspect the original benchmark documentation before comparing published scores.

What this evidence does not establish

  • Generated or reasoned outputs do not establish real-robot task completion.
  • Family-level labels must be resolved to an exact checkpoint for benchmark comparisons.

Relationships & deployments

Related reading is an editorial crosslink. Sourced connections describe relationships reported in the cited material. A link to a versioned profile does not establish compatibility with that version unless the connection note explicitly identifies it.

develops
NVIDIA → NVIDIA Cosmos Reason
Sources 1
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Publication date not disclosed · Source accessed 2026-09-28

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.

Connection reviewed 2026-09-28

Record history & verified changes

A research review records when we checked a source. It does not mark a product launch or a new deployment.

Initial reviewed record. No subsequent field change has been recorded.

Inspect the evidence

Sources & evidence

md-reason
nvidia-cosmos/cosmos-reason2 official repository

nvidia-cosmos · Repository · Publication date not disclosed · Source accessed 2026-09-28

License: Apache-2.0 code; NVIDIA Open Model License for models. Factual summary and attribution only; no upstream prose, images, weights, or dataset redistributed.

Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.