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ai-agent-book vs Fay

ai-agent-book and Fay share 14 technologies: uvicorn, FastAPI, chromadb, Flask, MCP, opencv-python, sentence-transformers, langchain-openai, pillow, python-pptx, python-docx, openpyxl, pdfplumber, and psutil. 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

xszyou

Fay

fay是一个帮助数字人（2.5d、3d、移动、pc、网页）或大语言模型（openai兼容、deepseek）连通业务系统的agent框架。

Python13.6kRead on November 9, 2026, at commit d49f476What is Fay built with?

Only in Fay

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
Fay310,384 lines written88 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
Fay9.9% of its commits signed by AIWith Claude Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ai-agent-bookLast push October 8, 20261,610 commits57,596 stars
FayLast push September 21, 2026304 commits13,611 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
Fay48 test files1.1% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ai-agent-book or Fay?
ai-agent-book, with 422,447 lines written; Fay has 310,384.

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

Which has more GitHub stars, ai-agent-book or Fay?
ai-agent-book, with 57,596 stars; Fay has 13,611.

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

Which has more tests, ai-agent-book or Fay?
ai-agent-book, with 624 test files; Fay has 48.

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

Which was updated more recently, ai-agent-book or Fay?
ai-agent-book: its last push was on October 8, 2026, and Fay's on September 21, 2026.

The proof: bojieli/ai-agent-book's commits on GitHub

Which has more commits signed by AI, ai-agent-book or Fay?
ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in Fay, 9.9%.

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

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