Robot AI company
Physical Intelligence
Physical Intelligence, also written π, is a robot AI company that builds general-purpose vision-language-action models for robots. It released the π0 model in October 2024 and open-sourced it in February 2025, followed by π0.5 and π0.7. In October 2026 it opened a Pi API beta for fine-tuning and hosting its models for outside robot makers.
Last reviewed 28 Oct 2026
Facts at a glance
| Type | Developer of robot foundation models |
|---|---|
| First model | π0, announced 31 October 2024 source |
| Open source | π0 and π0.5 weights in the openpi repository; π0 open-sourced 4 February 2025 source |
| Latest named model | π0.7, announced 16 April 2026 source |
| Pi API beta | Data upload, managed fine-tuning and hosted inference; launched 13 October 2026 with a waitlist source |
Questions people ask
- What is the Pi API?
- A beta service announced on 13 October 2026 that lets robot makers upload data, fine-tune Physical Intelligence's latest model on managed compute and run it through a hosted gateway.
- Are Physical Intelligence models open source?
- π0 and π0.5 are available in the openpi GitHub repository. The model behind the Pi API is not named.