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ai-agent-book vs jan
ai-agent-book and jan share 4 technologies: React, Vite, OpenAI, and PostHog. ai-agent-book is written in Python and jan in Rust.
What they share and what sets them apart
bojieli
ai-agent-book
《深入理解 AI Agent：设计原理与工程实践》（李博杰 著）开源主仓库：全书正文、编译版 PDF 与按章配套代码
Python56.6kRead on October 30, 2026, at commit dbc046eWhat is ai-agent-book built with?janhq
jan
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
Rust45.2kRead on October 31, 2026, at commit b8071a1What is jan built with?In common
Only in ai-agent-book
Side by side
ai-agent-bookjan
SizeLines written by people and agents, without generated ones; code files, without tests.
ai-agent-book422,452 lines written1,079 code files
jan423,916 lines written857 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.
ai-agent-book20.8% of its commits signed by AIWith Claude Code
jan0.6% of its commits signed by AIWith GitHub Copilot, Claude Code, Cursor, Factory, Jules, and Aider
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ai-agent-bookLast push October 8, 20261,610 commits56,633 stars
janLast push October 30, 20267,424 commits45,184 stars
TestsThe files that test the code, and the share of code files a test imports.
ai-agent-book624 test files33.9% of its code files have a test that imports them
jan460 test files48.9% of its code files have a test that imports them
Frequently asked questions
Which is bigger, ai-agent-book or jan?
jan, with 423,916 lines written in 857 code files; ai-agent-book has 422,452 in 1,079.
The proof: janhq/jan's code at commit b8071a1
Which has more GitHub stars, ai-agent-book or jan?
ai-agent-book, with 56,633 stars; jan has 45,184.
The proof: bojieli/ai-agent-book on GitHub
Which has more tests, ai-agent-book or jan?
ai-agent-book, with 624 test files; jan has 460.
Which was updated more recently, ai-agent-book or jan?
jan: its last push was on October 30, 2026, and ai-agent-book's on October 8, 2026.
The proof: janhq/jan's commits on GitHub
Which has more commits signed by AI, ai-agent-book or jan?
ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in jan, 0.6%.
The proof: the commits each tool signed in bojieli/ai-agent-book
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