ray vs Agent-S

ray and Agent-S share 11 technologies: FastAPI, Google, uvicorn, tiktoken, scikit-learn, imageio-ffmpeg, lxml, pillow, beautifulsoup4, Pydantic, and boto3. 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

simular-ai

Agent-S

Agent S: the state-of-the-art open source computer use agents

Python12.9kRead on November 10, 2026, at commit 0fff0e6What is Agent-S built with?

Only in Agent-S

  • OpenAI
  • PaddlePaddle
  • together
  • MCP
  • paddleocr
  • pytesseract

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
ray1,531,664 lines written2,777 code files
Agent-S55,076 lines written135 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
Agent-S5.1% of its commits signed by AIWith Claude Code and Cursor
ActivityFrom GitHub and its history, on the day SeeRepo read it.
rayLast push November 6, 202632,373 commits44,213 stars
Agent-SLast push October 30, 2026315 commits12,922 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
Agent-S80 test files37% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ray or Agent-S?
ray, with 1,531,664 lines written; Agent-S has 55,076.

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

Which has more GitHub stars, ray or Agent-S?
ray, with 44,213 stars; Agent-S has 12,922.

The proof: ray-project/ray on GitHub

Which has more tests, ray or Agent-S?
ray, with 2,168 test files; Agent-S has 80.

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

Which was updated more recently, ray or Agent-S?
ray: its last push was on November 6, 2026, and Agent-S's on October 30, 2026.

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

Which has more commits signed by AI, ray or Agent-S?
Agent-S: an AI signed 5.1% of its commits, with Claude Code and Cursor; in ray, 3.6%.

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