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openpi

Physical-Intelligence/openpi

Repository for running AI models with GPU requirements specified.

GraphCanon updated 3w · GitHub synced 3w

13k stars2.3k forksLast push 2mo Python Apache-2.0

Decision brief

openpi is a specialized tool for model training, inference & serving that leverages advanced GPU capabilities and has specific requirements for memory and hardware configurations.

Good fit when

  • When you have an NVIDIA GPU with at least 8 GB of VRAM for inference or at least 22.5 GB to fine-tune models using LoRA (Low-Rank Adaptation) on a single GPU.
  • If you are working within Ubuntu 22.04 and require the ability to perform model parallelism by configuring `fsdp_devices`.

Avoid when

  • When your project is not compatible with Ubuntu 22.04 or if you do not have access to a supported GPU configuration.
  • If you need to support multi-node training, as this capability has yet to be implemented in the current version of openpi.

Observed Jul 12, 2026 · Source: enrich:decision_facts

Verify the decision

Maintenance and security

Full trust report
Maintenance
Steady (46d since push)
As of 3w
Provenance
Not a fork · Organization account
As of 3w
Security (OSV)
No lockfile
As of 1mo

Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.

Install

pip install openpi
PyPI

Similar tools

Same-category neighbours. No typed graph edges are catalogued for this tool yet.

Evidence and technical details

Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.

Overview

A collection of AI models that necessitate specific NVIDIA GPU configurations for inference and fine-tuning, including options for model parallelism. The setup is primarily tested under Ubuntu 22.04.

Capability facts

Languages
python

Source: github.language+pyproject.toml · Aug 2, 2026

Categories

Tags

README

Requirements

To run the models in this repository, you will need an NVIDIA GPU with at least the following specifications. These estimations assume a single GPU, but you can also use multiple GPUs with model parallelism to reduce per-GPU memory requirements by configuring fsdp_devices in the training config. Please also note that the current training script does not yet support multi-node training.

ModeMemory RequiredExample GPU
Inference> 8 GBRTX 4090
Fine-Tuning (LoRA)> 22.5 GBRTX 4090
Fine-Tuning (Full)> 70 GBA100 (80GB) / H100

The repo has been tested with Ubuntu 22.04, we do not currently support other operating systems.


Installation

When cloning this repo, make sure to update submodules:

git clone --recurse-submodules git@github.com:Physical-Intelligence/openpi.git

For agents

This page has a .md twin and JSON over the API.

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