π0.5
Open VLA from Physical Intelligence with strong open-world generalisation.
π0.5 upgrades Physical Intelligence’s π0 flow-matching VLA with better open-world generalisation (trained with knowledge insulation). Base and DROID/LIBERO checkpoints are open-sourced in the openpi repo for inference and fine-tuning on your own robot.
- Provider
- Physical Intelligence
- Type
- Robotics (VLA)
- Released
- Apr 22, 2025
- Price
- Open weights — self-host
- Input
- text, image
- Output
- action
- Open weights
- Yes
- License
- Apache 2.0
Best for
- Agents
- Vision
- Local & on-device
Strengths
- Open weights (Apache 2.0)
- Fine-tune with LoRA on one GPU
- PyTorch + JAX
Tools that use it
- LeRobot — Hugging Face. Open-source models, datasets and tools for real-world robotics.
- openpi — Physical Intelligence. Open-source π0 / π0.5 robot foundation models and training code.