Source: https://seerepo.com/compare/HKUDS/Vibe-Trading/vs/xszyou/Fay
Markdown source: https://seerepo.com/compare/HKUDS/Vibe-Trading/vs/xszyou/Fay.md
Description: Vibe-Trading and Fay share 11 technologies: FastAPI, uvicorn, LangGraph, LangChain, MCP, langchain-openai, bs4, pillow, python-pptx, openpyxl, and python-docx. Both are written in Python.

# Vibe-Trading vs Fay

Vibe-Trading and Fay share 11 technologies: FastAPI, uvicorn, LangGraph, LangChain, MCP, langchain-openai, bs4, pillow, python-pptx, openpyxl, and python-docx. Both are written in Python.

- [HKUDS/Vibe-Trading](https://seerepo.com/r/HKUDS/Vibe-Trading): "Vibe-Trading: Your Personal Trading Agent"
- [xszyou/Fay](https://seerepo.com/r/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。

## What they share and what sets them apart

- In common: FastAPI, uvicorn, LangGraph, LangChain, MCP, langchain-openai, bs4, pillow, python-pptx, openpyxl, python-docx
- Only in Vibe-Trading: py-key-value-aio, DuckDB, OpenAI, fastmcp-slim, AIOHTTP, starlette, fastmcp, anyio, Electron, Vite, React, React Router, cycler, fonttools, soupsieve, tinycss2, contourpy, Rich, prompt-toolkit, matplotlib, peewee, authlib, joserfc, pyjwt, cryptography, keyring, github-copilot-sdk, langchain-protocol, langgraph-sdk, langsmith, tiktoken, scikit-learn, beautifulsoup4, et-xmlfile, html5lib, lxml, markdown-it-py, markupsafe, mdurl, rich-rst, webencodings, xlrd, xlsxwriter, jinja2, defusedxml, mistune, nh3, qrcode, reportlab, weasyprint, pypdf, pypdfium2, annotated-types, beartype, email-validator, jsonschema, jsonschema-path, jsonschema-specifications, openapi-pydantic, referencing, Pydantic, pydantic-core, OpenTelemetry, Tailwind CSS, tailwind-merge, sonner, echarts, Lucide, react-markdown, rehype-highlight, highlight.js, katex, rehype-katex, remark-gfm, remark-math
- Only in Fay: flask-cors, Flask, chromadb, SQLite, pygame, pyqt5, opencv-python, azure-cognitiveservices-speech, edge-tts, sentence-transformers, pdfplumber, psutil

## Side by side

| | Vibe-Trading | Fay |
|---|---|---|
| Size | 602,935 lines written, 1,351 code files | 310,384 lines written, 88 code files |
| Who writes it | 5.9% of its commits signed by AI. With Claude Code, Codex, GitHub Copilot, and Cursor | 9.9% of its commits signed by AI. With Claude Code |
| Activity | Last push November 6, 2026, 2,644 commits, 37,785 stars | Last push September 21, 2026, 304 commits, 13,611 stars |
| Tests | 1,166 test files. 50.4% of its code files have a test that imports them | 48 test files. 1.1% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, Vibe-Trading or Fay?

Vibe-Trading, with 602,935 lines written; Fay has 310,384.

The proof: [HKUDS/Vibe-Trading's code at commit b62c878](https://github.com/HKUDS/Vibe-Trading/tree/b62c8782f57cad20c1c195367fa7a1cdeb29d6a8)

### Which has more GitHub stars, Vibe-Trading or Fay?

Vibe-Trading, with 37,785 stars; Fay has 13,611.

The proof: [HKUDS/Vibe-Trading on GitHub](https://github.com/HKUDS/Vibe-Trading)

### Which has more tests, Vibe-Trading or Fay?

Vibe-Trading, with 1,166 test files; Fay has 48.

The proof: [HKUDS/Vibe-Trading's code at commit b62c878](https://github.com/HKUDS/Vibe-Trading/tree/b62c8782f57cad20c1c195367fa7a1cdeb29d6a8)

### Which was updated more recently, Vibe-Trading or Fay?

Vibe-Trading: its last push was on November 6, 2026, and Fay's on September 21, 2026.

The proof: [HKUDS/Vibe-Trading's commits on GitHub](https://github.com/HKUDS/Vibe-Trading/commits)

### Which has more commits signed by AI, Vibe-Trading or Fay?

Fay: an AI signed 9.9% of its commits, with Claude Code; in Vibe-Trading, 5.9%.

The proof: [the commits each tool signed in xszyou/Fay](https://seerepo.com/r/xszyou/Fay/ai)

## Sources

- HKUDS/Vibe-Trading: Read on November 6, 2026, at commit b62c878 (https://github.com/HKUDS/Vibe-Trading/tree/b62c8782f57cad20c1c195367fa7a1cdeb29d6a8)
- xszyou/Fay: Read on November 9, 2026, at commit d49f476 (https://github.com/xszyou/Fay/tree/d49f4769d46c2b5ece1fd15f0f1260afba7d2ccf)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.