pi-0.5
Open-weight VLA policies that transfer across robot embodiments and novel homes.
Full pi-0.5 record →Head to head
pi-0.5 vs Phoenix
pi-0.5 (Physical Intelligence) and Phoenix (Sanctuary AI) both sit in Robotics. Phoenix shipped more tracked changes in the last 30 days (9 vs 0). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | pi-0.5 Physical Intelligence | Phoenix Sanctuary AI |
|---|---|---|
| Segment | Robotics | Robotics |
| Version | pi-0.5 | 8th generation |
| Entry cost | Free and open-source model weights and code (Apache-2.0) | Pricing is not publicly listed; contact sales for inquiries. |
| Pricing tiers | Open Source free | — |
| Model stack | pi-0.5 · pi-0.5-droid · pi-0.5-libero · pi05_base · π₀-FAST | Carbon control system |
| Context window | — | — |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 9 |
| Origin | Global | Global |
| Capabilities | cross-embodiment transfer, open-world generalisation, open checkpoints, vision-language-action model (VLA), open-world generalization, knowledge insulation, flow matching, robotics control | 20-DoF hands, Hydraulic actuation, Teleop data collection, Physical AI, Dexterous manipulation, Tactile sensors, Hydraulic hands, Reinforcement learning |
Phoenix
Hydraulic humanoid with high-dexterity hands, trained via its Carbon control system and human teleoperation data.
Full Phoenix record →