Dyna-2: General Purpose Physical Agents with Hour-Long Autonomy — Jason Ma, Dyna Robotics

Dyna claims its million-hour world-action model enables 45-minute task transfer and scaled napkin-folding deployments at Din Tai Fung, beyond typical robotics "pilots."

• Million-hour pretraining: Dyna-2 is described as the first world-action model trained on over one million hours of human video, using a diffusion-transformer architecture with flow matching for smooth, real-time action generation.
• Rapid task transfer: New tasks like opening a fridge or chopping food reportedly require as little as 45 minutes to a few hours of robot demonstration data to fine-tune from the pretrained base model.

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