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ai-agent-book vs Agent-S

ai-agent-book and Agent-S share 11 technologies: uvicorn, FastAPI, OpenAI, Google, MCP, tiktoken, scikit-learn, lxml, beautifulsoup4, pillow, 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

Python57.6kRead on November 10, 2026, at commit dbc046eWhat is ai-agent-book built with?

Only in ai-agent-book

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

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
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.
ai-agent-book20.8% of its commits signed by AIWith Claude Code
Agent-S5.1% of its commits signed by AIWith Claude Code and Cursor
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ai-agent-bookLast push October 8, 20261,610 commits57,596 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.
ai-agent-book624 test files34.3% 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, ai-agent-book or Agent-S?
ai-agent-book, with 422,447 lines written; Agent-S has 55,076.

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

Which has more GitHub stars, ai-agent-book or Agent-S?
ai-agent-book, with 57,596 stars; Agent-S has 12,922.

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

Which has more tests, ai-agent-book or Agent-S?
ai-agent-book, with 624 test files; Agent-S has 80.

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

Which was updated more recently, ai-agent-book or Agent-S?
Agent-S: its last push was on October 30, 2026, and ai-agent-book's on October 8, 2026.

The proof: simular-ai/Agent-S's commits on GitHub

Which has more commits signed by AI, ai-agent-book or Agent-S?
ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in Agent-S, 5.1%.

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

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