Source: https://seerepo.com/compare/lfnovo/open-notebook/vs/vectorize-io/hindsight
Markdown source: https://seerepo.com/compare/lfnovo/open-notebook/vs/vectorize-io/hindsight.md
Description: open-notebook and hindsight share 16 technologies: FastAPI, uvicorn, React, Next.js, LangChain, Pydantic, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, sonner, cmdk, Lucide, react-markdown, remark-gfm, and Zod. open-notebook is written in TypeScript and hindsight in Python.

# open-notebook vs hindsight

open-notebook and hindsight share 16 technologies: FastAPI, uvicorn, React, Next.js, LangChain, Pydantic, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, sonner, cmdk, Lucide, react-markdown, remark-gfm, and Zod. open-notebook is written in TypeScript and hindsight in Python.

- [lfnovo/open-notebook](https://seerepo.com/r/lfnovo/open-notebook): An Open Source implementation of Notebook LM with more flexibility and features
- [vectorize-io/hindsight](https://seerepo.com/r/vectorize-io/hindsight): Hindsight: Agent Memory That Learns

## What they share and what sets them apart

- In common: FastAPI, uvicorn, React, Next.js, LangChain, Pydantic, Tailwind CSS, class-variance-authority, tailwind-merge, Radix UI, sonner, cmdk, Lucide, react-markdown, remark-gfm, Zod
- Only in open-notebook: langgraph-checkpoint-sqlite, LangGraph, tiktoken, langchain-text-splitters, loguru, React Hook Form, @uiw/react-md-editor, react-syntax-highlighter, rehype-katex, remark-math, katex, rehype-sanitize, @hookform/resolvers
- Only in hindsight: pgvector, psycopg2-binary, Postgres, Claude, Google, OpenAI, AIOHTTP, fastmcp, Tokio, Preact, Rich, crossterm, indicatif, Ratatui, SQLAlchemy, alembic, cryptography, pyjwt, einops, Haystack, openai-agents, pydantic-ai-slim, strands-agents, litellm, torch, CrewAI, google-adk, llama-index-core, autogen-core, MCP, pillow, validator.v2, opentelemetry-api, opentelemetry-semantic-conventions, OpenTelemetry, opentelemetry-exporter-otlp-proto-http, opentelemetry-instrumentation-fastapi, @tailwindcss/postcss, PostCSS, next-themes, react18-json-view, recharts, ai, @opencode-ai/plugin, js-yaml, @clack/prompts

## Side by side

| | open-notebook | hindsight |
|---|---|---|
| Size | 81,527 lines written, 296 code files | 749,226 lines written, 1,156 code files |
| Who writes it | 8.9% of its commits signed by AI. With Claude Code and Cursor | 6.8% of its commits signed by AI. With Claude Code, Cursor, Codex, and GitHub Copilot |
| Activity | Last push November 4, 2026, 891 commits, 41,668 stars | Last push November 5, 2026, 4,037 commits, 58,979 stars |
| Tests | 107 test files. 38.9% of its code files have a test that imports them | 1,333 test files. 30.2% 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, open-notebook or hindsight?

hindsight, with 749,226 lines written; open-notebook has 81,527.

The proof: [vectorize-io/hindsight's code at commit ee3bd04](https://github.com/vectorize-io/hindsight/tree/ee3bd049ebe3b96b7d1120328429102100c1e28e)

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

hindsight, with 58,979 stars; open-notebook has 41,668.

The proof: [vectorize-io/hindsight on GitHub](https://github.com/vectorize-io/hindsight)

### Which has more tests, open-notebook or hindsight?

hindsight, with 1,333 test files; open-notebook has 107.

The proof: [vectorize-io/hindsight's code at commit ee3bd04](https://github.com/vectorize-io/hindsight/tree/ee3bd049ebe3b96b7d1120328429102100c1e28e)

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

hindsight: its last push was on November 5, 2026, and open-notebook's on November 4, 2026.

The proof: [vectorize-io/hindsight's commits on GitHub](https://github.com/vectorize-io/hindsight/commits)

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

open-notebook: an AI signed 8.9% of its commits, with Claude Code and Cursor; in hindsight, 6.8%.

The proof: [the commits each tool signed in lfnovo/open-notebook](https://seerepo.com/r/lfnovo/open-notebook/ai)

## Sources

- lfnovo/open-notebook: Read on November 6, 2026, at commit 5e285b7 (https://github.com/lfnovo/open-notebook/tree/5e285b7a2e435895c4ee99ad7e4b8d2af64c3239)
- vectorize-io/hindsight: Read on November 5, 2026, at commit ee3bd04 (https://github.com/vectorize-io/hindsight/tree/ee3bd049ebe3b96b7d1120328429102100c1e28e)

## 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.