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onyx vs scalene

onyx and scalene share 5 technologies: Rich, jinja2, lxml, Pydantic, and psutil. Both are written in Python.

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What they share and what sets them apart

onyx-dot-app

onyx

Open Source AI Platform - AI Chat with advanced features that works with every LLM

Python33.3kRead on November 7, 2026, at commit a757433What is onyx built with?

Only in onyx

In common

plasma-umass

scalene

Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals

Python13.6kRead on November 9, 2026, at commit ba0896dWhat is scalene built with?

Only in scalene

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
onyx1,626,990 lines written3,906 code files
scalene60,118 lines written87 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.
onyx11.7% of its commits signed by AIWith Claude Code, Devin, Cursor, CodeRabbit, GitHub Copilot, and Sweep
scalene4% of its commits signed by AIWith Claude Code and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
onyxLast push November 7, 202611,391 commits33,270 stars
scaleneLast push November 9, 20263,270 commits13,555 stars
TestsThe files that test the code, and the share of code files a test imports.
onyx3,158 test files45.7% of its code files have a test that imports them
scalene237 test files50.6% of its code files have a test that imports them

Frequently asked questions

Which is bigger, onyx or scalene?
onyx, with 1,626,990 lines written; scalene has 60,118.

The proof: onyx-dot-app/onyx's code at commit a757433

Which has more GitHub stars, onyx or scalene?
onyx, with 33,270 stars; scalene has 13,555.

The proof: onyx-dot-app/onyx on GitHub

Which has more tests, onyx or scalene?
onyx, with 3,158 test files; scalene has 237.

The proof: onyx-dot-app/onyx's code at commit a757433

Which was updated more recently, onyx or scalene?
scalene: its last push was on November 9, 2026, and onyx's on November 7, 2026.

The proof: plasma-umass/scalene's commits on GitHub

Which has more commits signed by AI, onyx or scalene?
onyx: an AI signed 11.7% of its commits, with Claude Code, Devin, Cursor, CodeRabbit, GitHub Copilot, and Sweep; in scalene, 4%.

The proof: the commits each tool signed in onyx-dot-app/onyx

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