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onyx vs LEANN

onyx and LEANN share 12 technologies: FastAPI, pyzmq, OpenAI, einops, MCP, torch, sentence-transformers, transformers, pdfplumber, pypdfium2, psutil, and boto3. 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

Python33.4kRead on November 14, 2026, at commit 82c169cWhat is onyx built with?

Only in onyx

In common

StarTrail-org

LEANN

[MLsys2026 Best Paper]: https://arxiv.org/abs/2506.08276. RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.

Python13.8kRead on November 9, 2026, at commit 07796bdWhat is LEANN built with?

Only in LEANN

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
onyx1,761,418 lines written4,062 code files
LEANN55,453 lines written86 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.
onyx12.3% of its commits signed by AIWith Claude Code, Devin, Cursor, CodeRabbit, GitHub Copilot, and Sweep
LEANN11.2% of its commits signed by AIWith Claude Code, Cursor, GitHub Copilot, and Jules
ActivityFrom GitHub and its history, on the day SeeRepo read it.
onyxLast push November 14, 202611,587 commits33,395 stars
LEANNLast push November 3, 2026617 commits13,785 stars
TestsThe files that test the code, and the share of code files a test imports.
onyx3,403 test files47.3% of its code files have a test that imports them
LEANN65 test files36% of its code files have a test that imports them

Frequently asked questions

Which is bigger, onyx or LEANN?
onyx, with 1,761,418 lines written; LEANN has 55,453.

The proof: onyx-dot-app/onyx's code at commit 82c169c

Which has more GitHub stars, onyx or LEANN?
onyx, with 33,395 stars; LEANN has 13,785.

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

Which has more tests, onyx or LEANN?
onyx, with 3,403 test files; LEANN has 65.

The proof: onyx-dot-app/onyx's code at commit 82c169c

Which was updated more recently, onyx or LEANN?
onyx: its last push was on November 14, 2026, and LEANN's on November 3, 2026.

The proof: onyx-dot-app/onyx's commits on GitHub

Which has more commits signed by AI, onyx or LEANN?
onyx: an AI signed 12.3% of its commits, with Claude Code, Devin, Cursor, CodeRabbit, GitHub Copilot, and Sweep; in LEANN, 11.2%.

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

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