ray vs mamba

ray and mamba share 4 technologies: einops, triton, torch, and transformers. Both are written in Python.

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What they share and what sets them apart

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

In common

Only in mamba

  • apache-tvm-ffi
  • quack-kernels

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
ray1,531,664 lines written2,777 code files
mamba28,235 lines written43 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.
ray3.6% of its commits signed by AIWith Claude Code, Gemini CLI, GitHub Copilot, Cursor, and Codex
mamba0.5% of its commits signed by AIWith GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
rayLast push November 6, 202632,373 commits44,213 stars
mambaLast push July 22, 2026219 commits18,976 stars
TestsThe files that test the code, and the share of code files a test imports.
ray2,168 test files9.7% of its code files have a test that imports them
mamba11 test files51.2% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ray or mamba?
ray, with 1,531,664 lines written; mamba has 28,235.

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

Which has more GitHub stars, ray or mamba?
ray, with 44,213 stars; mamba has 18,976.

The proof: ray-project/ray on GitHub

Which has more tests, ray or mamba?
ray, with 2,168 test files; mamba has 11.

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

Which was updated more recently, ray or mamba?
ray: its last push was on November 6, 2026, and mamba's on July 22, 2026.

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

Which has more commits signed by AI, ray or mamba?
ray: an AI signed 3.6% of its commits, with Claude Code, Gemini CLI, GitHub Copilot, Cursor, and Codex; in mamba, 0.5%.

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

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