EN

Physical Intelligence

π₀.₅

π₀.₅

Checkpoint

Upgraded π₀ model for open-world generalization.

Specifications

Architecture components: Flow-matching action expert
Backbone: PaliGemma vision-language backbone with flow-matching action expert
Frameworks: openpi / LeRobot
Input modalities: Language instruction
Input modalities: RGB camera images
Input modalities: Robot state / proprioception
Languages: English
Model type: Vision-language-action model
Output action space: Continuous robot action chunks
Parameter count: 4B parameters
Pipeline task: Robotics

Lineage

Unknown

Architecture & I/O

trajectory · continuous

Unknown

Continuous robot action chunks

Source · lerobot

Default checkpoint

openpi π₀.₅ base

openGemma Terms of Use

Other releases

3

published checkpoints

openpi π₀.₅ base lerobot/pi05_libero lerobot/pi05_libero_finetuned

Supported robots

No verified robot compatibility recorded.

Benchmark results

No published benchmark results.

Deployment

openpi / LeRobot · NVIDIA GPU

bfloat16 · 8 GB VRAM · unknown

Source · lerobot

Training data

finetune

HuggingFaceVLA LIBERO

open

Source · Hugging Face LeRobot

Resources

documentation · LeRobot π₀.₅ documentation repository · openpi official repository weights · openpi π₀.₅ base model card

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