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Cosmos-Reason1 56B

Parameters
56B
Published
May 19, 2025

Cosmos-Reason1 56B is an AI model developed by NVIDIA (United States), first published in May 2025. It works in the multimodal, language, vision and 2 more domain, on tasks such as language modeling/generation, visual question answering, video description and 3 more.

Epoch AI has no training-compute estimate for this model. The model has 56,000,000,000 parameters.

Access: Unreleased. Its weights are not openly released. It is built on top of Nemotron-H 56B. Epoch AI rates the confidence of this record as confident.

Full record
Organization
NVIDIA
Country of organization
United States
Domain
Multimodal, Language, Vision, Robotics, Video
Task
Language modeling/generation, Visual question answering, Video description, Question answering, Instruction interpretation, Robotic manipulation
Parameters
56,000,000,000
Model accessibility
Unreleased
Open weights
No
Base model
Nemotron-H 56B
Epoch confidence
Confident
More from NVIDIA
SourceEpoch AI, 'AI Models'. Published online at epoch.ai. Retrieved 2026-07-29 from https://epoch.ai/data/ai-models. Licensed under CC BY 4.0.
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