π0.5Physical Intelligence
Robot foundation modelsOpen weights
Physical Intelligence · AI model
π0.5
April 2025 successor to π0 aimed at working in places the robot has never seen. It is trained on a mix of data from several robot types, high-level task labels and web data, and was shown cleaning kitchens and bedrooms in homes that were not in its training data. Its checkpoints were added to the open openpi repository in September 2025.
- Kind
- Robot foundation models
- Maker
- Physical IntelligenceUnited States
- First year
- 2025
- Weights
- OpenAnyone can download it
- Robots
- 1Named as using it
- Country
- United States
Robots that use it
1 robot model named by the maker or reputable press.
Not yet in the atlas
- Franka arm in the DROID setup (π0.5-DROID checkpoint)github.com
Other robot foundation models
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- 2025Isaac GR00T N1NVIDIA · 1 robot model
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- 2025Isaac GR00T N1.6NVIDIA
- 2025π*0.6 (pi-star 0.6)Physical Intelligence
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- 2025Gemini Robotics and Gemini Robotics-ERGoogle DeepMind · 3 robot models
More from Physical Intelligence
Sources
From the maker, its papers and reputable press.
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