π₀.₅ is a Vision-Language-Action (VLA) model with open-world generalization from Physical Intelligence, co-trained on robot demonstrations and large-scale multimodal data to execute long-horizon tasks in unseen real-world environments.

Checkpoint fine tuned on a custom robosuite environment with a variety of common objects and aggressive domain randomization.

Original paper: π0.5: A Vision-Language-Action Model with Open-World Generalization
Reference implementation: https://github.com/Physical-Intelligence/openpi
LeRobot implementation: Follows the original reference code for compatibility.