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ai-agent-book vs ChatDev

ai-agent-book and ChatDev share 15 technologies: uvicorn, FastAPI, OpenAI, Google, fastmcp, Vite, matplotlib, seaborn, faiss-cpu, mem0ai, MCP, beautifulsoup4, openpyxl, markdown, and Pydantic. Both are written in Python.

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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

Python57.2kRead on November 5, 2026, at commit dbc046eWhat is ai-agent-book built with?

Only in ai-agent-book

In common

OpenBMB

ChatDev

ChatDev 2.0: Dev All through LLM-powered Multi-Agent Collaboration

Python34.7kRead on November 7, 2026, at commit 464a681What is ChatDev built with?

Only in ChatDev

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
ai-agent-book422,447 lines written1,067 code files
ChatDev49,742 lines written207 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
ChatDev3.6% of its commits signed by AIWith Codex, Claude Code, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ai-agent-bookLast push October 8, 20261,610 commits57,240 stars
ChatDevLast push November 6, 2026140 commits34,700 stars
TestsThe files that test the code, and the share of code files a test imports.
ai-agent-book624 test files34.3% of its code files have a test that imports them
ChatDev9 test files19.3% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ai-agent-book or ChatDev?
ai-agent-book, with 422,447 lines written; ChatDev has 49,742.

The proof: bojieli/ai-agent-book's code at commit dbc046e

Which has more GitHub stars, ai-agent-book or ChatDev?
ai-agent-book, with 57,240 stars; ChatDev has 34,700.

The proof: bojieli/ai-agent-book on GitHub

Which has more tests, ai-agent-book or ChatDev?
ai-agent-book, with 624 test files; ChatDev has 9.

The proof: bojieli/ai-agent-book's code at commit dbc046e

Which was updated more recently, ai-agent-book or ChatDev?
ChatDev: its last push was on November 6, 2026, and ai-agent-book's on October 8, 2026.

The proof: OpenBMB/ChatDev's commits on GitHub

Which has more commits signed by AI, ai-agent-book or ChatDev?
ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in ChatDev, 3.6%.

The proof: the commits each tool signed in bojieli/ai-agent-book

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