π0.5 (pi-0.5)

Parameters

3.3B

Published

Apr 22, 2025

π0.5 (pi-0.5) is an AI model developed by Physical Intelligence (United States), first published in April 2025. It works in the robotics and vision domain, on tasks such as robotic manipulation.

Epoch AI has no training-compute estimate for this model. The model has 3,300,000,000 parameters.

Access: Unreleased. Its weights are not openly released. It is built on top of PaliGemma. The reference paper has 337 citations. Epoch AI rates the confidence of this record as confident.

Full record

Organization: Physical Intelligence
Country of organization: United States
Domain: Robotics, Vision
Task: Robotic manipulation
Parameters: 3,300,000,000
Model accessibility: Unreleased
Open weights: No
Base model: PaliGemma
Citations: 337
Epoch confidence: Confident