Source: https://seerepo.com/compare/bytedance/deer-flow/vs/lfnovo/open-notebook
Markdown source: https://seerepo.com/compare/bytedance/deer-flow/vs/lfnovo/open-notebook.md
Description: deer-flow and open-notebook share 20 technologies: FastAPI, langgraph-checkpoint-sqlite, uvicorn, React, Next.js, LangChain, LangGraph, Tailwind CSS, class-variance-authority, tailwind-merge, sonner, Radix UI, cmdk, Lucide, katex, rehype-katex, rehype-sanitize, remark-gfm, remark-math, and Zod. deer-flow is written in Python and open-notebook in TypeScript.

# deer-flow vs open-notebook

deer-flow and open-notebook share 20 technologies: FastAPI, langgraph-checkpoint-sqlite, uvicorn, React, Next.js, LangChain, LangGraph, Tailwind CSS, class-variance-authority, tailwind-merge, sonner, Radix UI, cmdk, Lucide, katex, rehype-katex, rehype-sanitize, remark-gfm, remark-math, and Zod. deer-flow is written in Python and open-notebook in TypeScript.

- [bytedance/deer-flow](https://seerepo.com/r/bytedance/deer-flow): An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.
- [lfnovo/open-notebook](https://seerepo.com/r/lfnovo/open-notebook): An Open Source implementation of Notebook LM with more flexibility and features

## What they share and what sets them apart

- In common: FastAPI, langgraph-checkpoint-sqlite, uvicorn, React, Next.js, LangChain, LangGraph, Tailwind CSS, class-variance-authority, tailwind-merge, sonner, Radix UI, cmdk, Lucide, katex, rehype-katex, rehype-sanitize, remark-gfm, remark-math, Zod
- Only in deer-flow: aiosqlite, SQLite, starlette, SQLAlchemy, alembic, pyjwt, cryptography, bcrypt, langchain-openai, langchain-mcp-adapters, e2b-code-interpreter, langchain-anthropic, exa-py, langchain-deepseek, langfuse, html5lib, beautifulsoup4, email-validator, jsonschema, kubernetes, next-themes, @uiw/codemirror-theme-monokai, motion, @tanstack/react-virtual, @uiw/react-codemirror, react-resizable-panels, use-stick-to-bottom, @streamdown/code, canvas-confetti, CodeMirror, embla-carousel-react, GSAP, Headless UI, @radix-ui/react-icons, ai, streamdown, shiki, papaparse, qrcode.react, rehype-raw, unist-util-visit
- Only in open-notebook: tiktoken, langchain-text-splitters, Pydantic, loguru, React Hook Form, @uiw/react-md-editor, react-syntax-highlighter, react-markdown, @hookform/resolvers

## Side by side

| | deer-flow | open-notebook |
|---|---|---|
| Size | 1,085,017 lines written, 1,515 code files | 81,527 lines written, 296 code files |
| Who writes it | 12.7% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, Codex, and Factory | 8.9% of its commits signed by AI. With Claude Code and Cursor |
| Activity | Last push November 4, 2026, 4,588 commits, 84,984 stars | Last push November 4, 2026, 891 commits, 41,668 stars |
| Tests | 1,922 test files. 72.5% of its code files have a test that imports them | 107 test files. 38.9% 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, deer-flow or open-notebook?

deer-flow, with 1,085,017 lines written; open-notebook has 81,527.

The proof: [bytedance/deer-flow's code at commit a46d922](https://github.com/bytedance/deer-flow/tree/a46d9221f8ab029ef0b7b8caae25c10ab4153395)

### Which has more GitHub stars, deer-flow or open-notebook?

deer-flow, with 84,984 stars; open-notebook has 41,668.

The proof: [bytedance/deer-flow on GitHub](https://github.com/bytedance/deer-flow)

### Which has more tests, deer-flow or open-notebook?

deer-flow, with 1,922 test files; open-notebook has 107.

The proof: [bytedance/deer-flow's code at commit a46d922](https://github.com/bytedance/deer-flow/tree/a46d9221f8ab029ef0b7b8caae25c10ab4153395)

### Which was updated more recently, deer-flow or open-notebook?

Both got their last push on November 4, 2026.

The proof: [bytedance/deer-flow's commits on GitHub](https://github.com/bytedance/deer-flow/commits)

### Which has more commits signed by AI, deer-flow or open-notebook?

deer-flow: an AI signed 12.7% of its commits, with Claude Code, GitHub Copilot, Cursor, Codex, and Factory; in open-notebook, 8.9%.

The proof: [the commits each tool signed in bytedance/deer-flow](https://seerepo.com/r/bytedance/deer-flow/ai)

## Sources

- bytedance/deer-flow: Read on November 4, 2026, at commit a46d922 (https://github.com/bytedance/deer-flow/tree/a46d9221f8ab029ef0b7b8caae25c10ab4153395)
- lfnovo/open-notebook: Read on November 6, 2026, at commit 5e285b7 (https://github.com/lfnovo/open-notebook/tree/5e285b7a2e435895c4ee99ad7e4b8d2af64c3239)

## 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.