Open Sourcing π0

What this post added

This post announces the open-sourcing of the π0 robotic foundation model via the openpi repository. It provides access to the base pre-trained model, fine-tuned checkpoints for platforms like ALOHA and DROID, example inference and fine-tuning code, and a PyTorch port. The release aims to enable broader experimentation and adaptation of the model to diverse robotic systems and tasks.