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openpi vs unsloth

openpi and unsloth share 6 technologies: Rich, torch, einops, transformers, sentencepiece, and pillow. Both are written in Python.

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What they share and what sets them apart

Physical-Intelligence

openpi

Python14.6kRead on November 9, 2026, at commit 215abfbWhat is openpi built with?

Only in openpi

In common

unslothai

unsloth

Local UI to run and train LLMs and diffusion models. Supports GGUF, MLX, Qwen3.8, DeepSeek-V4.1, MiniMax-H3, Gemma 4, FLUX and more.

Python79.4kRead on November 12, 2026, at commit 98836c2What is unsloth built with?

Only in unsloth

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
openpi17,200 lines written52 code files
unsloth4,065,144 lines written3,678 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
openpi0.7% of its commits signed by AIWith Claude Code
unsloth1% of its commits signed by AIWith Claude Code, Gemini CLI, Cursor, Codex, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
openpiLast push August 24, 2026150 commits14,578 stars
unslothLast push November 12, 202613,457 commits79,373 stars
TestsThe files that test the code, and the share of code files a test imports.
openpi14 test files26.9% of its code files have a test that imports them
unsloth6,084 test files61.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, openpi or unsloth?
unsloth, with 4,065,144 lines written; openpi has 17,200.

The proof: unslothai/unsloth's code at commit 98836c2

Which has more GitHub stars, openpi or unsloth?
unsloth, with 79,373 stars; openpi has 14,578.

The proof: unslothai/unsloth on GitHub

Which has more tests, openpi or unsloth?
unsloth, with 6,084 test files; openpi has 14.

The proof: unslothai/unsloth's code at commit 98836c2

Which was updated more recently, openpi or unsloth?
unsloth: its last push was on November 12, 2026, and openpi's on August 24, 2026.

The proof: unslothai/unsloth's commits on GitHub

Which has more commits signed by AI, openpi or unsloth?
unsloth: an AI signed 1% of its commits, with Claude Code, Gemini CLI, Cursor, Codex, and GitHub Copilot; in openpi, 0.7%.

The proof: the commits each tool signed in unslothai/unsloth

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