qlib vs ray

qlib and ray share 6 technologies: soupsieve, cryptography, torch, beautifulsoup4, lxml, and openpyxl. Both are written in Python.

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What they share and what sets them apart

microsoft

qlib

Qlib is an AI-oriented Quant investment platform that aims to use AI tech to empower Quant Research, from exploring ideas to implementing productions. Qlib supports diverse ML modeling paradigms, including supervised learning, market dynamics modeling, and RL, and is now equipped with https://github.com/microsoft/RD-Agent to automate R&D process.

Python50kRead on November 5, 2026, at commit 5435523What is qlib built with?

Only in qlib

In common

ray-project

ray

Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.

Python44.2kRead on November 6, 2026, at commit 77567c5What is ray built with?

Only in ray

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
qlib78,929 lines written219 code files
ray1,531,664 lines written2,777 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.
qlib0.2% of its commits signed by AIWith GitHub Copilot
ray3.6% of its commits signed by AIWith Claude Code, Gemini CLI, GitHub Copilot, Cursor, and Codex
ActivityFrom GitHub and its history, on the day SeeRepo read it.
qlibLast push November 4, 20261,852 commits50,029 stars
rayLast push November 6, 202632,373 commits44,213 stars
TestsThe files that test the code, and the share of code files a test imports.
qlib56 test files36.5% of its code files have a test that imports them
ray2,168 test files9.7% of its code files have a test that imports them

Frequently asked questions

Which is bigger, qlib or ray?
ray, with 1,531,664 lines written; qlib has 78,929.

The proof: ray-project/ray's code at commit 77567c5

Which has more GitHub stars, qlib or ray?
qlib, with 50,029 stars; ray has 44,213.

The proof: microsoft/qlib on GitHub

Which has more tests, qlib or ray?
ray, with 2,168 test files; qlib has 56.

The proof: ray-project/ray's code at commit 77567c5

Which was updated more recently, qlib or ray?
ray: its last push was on November 6, 2026, and qlib's on November 4, 2026.

The proof: ray-project/ray's commits on GitHub

Which has more commits signed by AI, qlib or ray?
ray: an AI signed 3.6% of its commits, with Claude Code, Gemini CLI, GitHub Copilot, Cursor, and Codex; in qlib, 0.2%.

The proof: the commits each tool signed in ray-project/ray

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