exo vs ColossalAI

exo and ColossalAI share 10 technologies: FastAPI, Hugging Face, anyio, datasets, math-verify, tiktoken, transformers, jinja2, Pydantic, and psutil. Both are written in Python.

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What they share and what sets them apart

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
exo161,527 lines written386 code files
ColossalAI317,403 lines written974 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.
exo12% of its commits signed by AIWith Claude Code, Cursor, and Jules
ColossalAI0.3% of its commits signed by AIWith Codex and Claude Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
exoLast push November 5, 20262,248 commits48,204 stars
ColossalAILast push November 6, 20263,887 commits41,430 stars
TestsThe files that test the code, and the share of code files a test imports.
exo290 test files51.6% of its code files have a test that imports them
ColossalAI505 test files1.1% of its code files have a test that imports them

Frequently asked questions

Which is bigger, exo or ColossalAI?
ColossalAI, with 317,403 lines written; exo has 161,527.

The proof: hpcaitech/ColossalAI's code at commit da8f5c2

Which has more GitHub stars, exo or ColossalAI?
exo, with 48,204 stars; ColossalAI has 41,430.

The proof: exo-explore/exo on GitHub

Which has more tests, exo or ColossalAI?
ColossalAI, with 505 test files; exo has 290.

The proof: hpcaitech/ColossalAI's code at commit da8f5c2

Which was updated more recently, exo or ColossalAI?
ColossalAI: its last push was on November 6, 2026, and exo's on November 5, 2026.

The proof: hpcaitech/ColossalAI's commits on GitHub

Which has more commits signed by AI, exo or ColossalAI?
exo: an AI signed 12% of its commits, with Claude Code, Cursor, and Jules; in ColossalAI, 0.3%.

The proof: the commits each tool signed in exo-explore/exo

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