Cosmos 3

Cosmos 3 is discussed in 170: 【具身季报 26Q2】世界模型大风不停，和不想被贴标签的人 as Nvidia’s Q2 2026 marker for productized World Models. Chen Zhe Peter describes it as a more open, product-level omni-world-model release with Super, Nano, and Edge variants for different deployment contexts.

The episode says Cosmos 3 can handle and generate multiple modalities, including text, images, video, sound, and action, and uses a Mixer of Transformers architecture combining autoregressive and diffusion transformer components. Its significance in the wiki is not only model capability, but the fact that a major infrastructure company can release a world-model stack that supports World Action Models, robot simulation, and World Model VLA Fusion without needing the model itself to be the whole robot policy.

Connections

• Nvidia — company associated with the product in the episode.
• World Models, World Action Models, and World Model VLA Fusion — model-route concepts Cosmos 3 extends.
• Embodied AI, Physical AI, and Robotics Simulation Evaluation — physical-AI context where the model may matter.