Source: https://seerepo.com/compare/bojieli/ai-agent-book/vs/twentyhq/twenty
Markdown source: https://seerepo.com/compare/bojieli/ai-agent-book/vs/twentyhq/twenty.md
Description: ai-agent-book and twenty share 7 technologies: React, Vite, Express, Postgres, OpenAI, Anthropic, and Google. ai-agent-book is written in Python and twenty in TypeScript.

# ai-agent-book vs twenty

ai-agent-book and twenty share 7 technologies: React, Vite, Express, Postgres, OpenAI, Anthropic, and Google. ai-agent-book is written in Python and twenty in TypeScript.

- [bojieli/ai-agent-book](https://seerepo.com/r/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
- [twentyhq/twenty](https://seerepo.com/r/twentyhq/twenty): The open alternative to Salesforce, designed for AI.

## What they share and what sets them apart

- In common: React, Vite, Express, Postgres, OpenAI, Anthropic, Google
- Only in ai-agent-book: Next.js, Astro, FastAPI, PostHog
- Only in twenty: Redis, Sentry, Stripe, AWS S3

## Side by side

| | ai-agent-book | twenty |
|---|---|---|
| Size | 422,452 lines written, 1,079 code files | 2,722,081 lines written, 25,898 code files |
| Who writes it | 20.8% of its commits signed by AI. With Claude Code | 1.9% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, and Sweep |
| Activity | Last push October 8, 2026, 1,610 commits, 56,633 stars | Last push October 30, 2026, 17,664 commits, 60,174 stars |
| Tests | 624 test files. 33.9% of its code files have a test that imports them | 6,915 test files. 28.9% 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, ai-agent-book or twenty?

twenty, with 2,722,081 lines written in 25,898 code files; ai-agent-book has 422,452 in 1,079.

The proof: [twentyhq/twenty's code at commit fbaaaae](https://github.com/twentyhq/twenty/tree/fbaaaae4aab28db62a23ae17c5dc279d2c810cce)

### Which has more GitHub stars, ai-agent-book or twenty?

twenty, with 60,174 stars; ai-agent-book has 56,633.

The proof: [twentyhq/twenty on GitHub](https://github.com/twentyhq/twenty)

### Which has more tests, ai-agent-book or twenty?

twenty, with 6,915 test files; ai-agent-book has 624.

The proof: [twentyhq/twenty's code at commit fbaaaae](https://github.com/twentyhq/twenty/tree/fbaaaae4aab28db62a23ae17c5dc279d2c810cce)

### Which was updated more recently, ai-agent-book or twenty?

twenty: its last push was on October 30, 2026, and ai-agent-book's on October 8, 2026.

The proof: [twentyhq/twenty's commits on GitHub](https://github.com/twentyhq/twenty/commits)

### Which has more commits signed by AI, ai-agent-book or twenty?

ai-agent-book: an AI signed 20.8% of its commits, with Claude Code; in twenty, 1.9%.

The proof: [the commits each tool signed in bojieli/ai-agent-book](https://seerepo.com/r/bojieli/ai-agent-book/ai)

## Sources

- bojieli/ai-agent-book: Read on October 30, 2026, at commit dbc046e (https://github.com/bojieli/ai-agent-book/tree/dbc046eb896ac4e39aa19c7774c8bf49583b89a6)
- twentyhq/twenty: Read on October 30, 2026, at commit fbaaaae (https://github.com/twentyhq/twenty/tree/fbaaaae4aab28db62a23ae17c5dc279d2c810cce)

## 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.