Source: https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/langchain-ai/langchain
Markdown source: https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/langchain-ai/langchain.md
Description: ComfyUI and langchain share 4 technologies: AIOHTTP, SQLAlchemy, pillow, and Pydantic. Both are written in Python.

# ComfyUI vs langchain

ComfyUI and langchain share 4 technologies: AIOHTTP, SQLAlchemy, pillow, and Pydantic. Both are written in Python.

- [Comfy-Org/ComfyUI](https://seerepo.com/r/Comfy-Org/ComfyUI): The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. The fastest local inference engine in the world.
- [langchain-ai/langchain](https://seerepo.com/r/langchain-ai/langchain): The agent engineering platform.

## What they share and what sets them apart

- In common: AIOHTTP, SQLAlchemy, pillow, Pydantic
- Only in ComfyUI: alembic, torch, einops, transformers, tokenizers, sentencepiece, av, psutil
- Only in langchain: chromadb, OpenAI, LangChain, langchain-openai, LangGraph, langchain-text-splitters, langsmith, tiktoken, exa-py, Ollama, groq

## Side by side

| | ComfyUI | langchain |
|---|---|---|
| Size | 348,332 lines written, 731 code files | 426,036 lines written, 1,654 code files |
| Who writes it | 0.3% of its commits signed by AI. With Amp, Claude Code, and GitHub Copilot | 0.3% of its commits signed by AI. With GitHub Copilot, Claude Code, and Gemini CLI |
| Activity | Last push November 4, 2026, 6,036 commits, 144,948 stars | Last push November 4, 2026, 17,017 commits, 148,995 stars |
| Tests | 280 test files. 21.8% of its code files have a test that imports them | 895 test files. 16.4% 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, ComfyUI or langchain?

langchain, with 426,036 lines written; ComfyUI has 348,332.

The proof: [langchain-ai/langchain's code at commit aa2528f](https://github.com/langchain-ai/langchain/tree/aa2528fb980a290d2b06c83a1be43e60bc2348f9)

### Which has more GitHub stars, ComfyUI or langchain?

langchain, with 148,995 stars; ComfyUI has 144,948.

The proof: [langchain-ai/langchain on GitHub](https://github.com/langchain-ai/langchain)

### Which has more tests, ComfyUI or langchain?

langchain, with 895 test files; ComfyUI has 280.

The proof: [langchain-ai/langchain's code at commit aa2528f](https://github.com/langchain-ai/langchain/tree/aa2528fb980a290d2b06c83a1be43e60bc2348f9)

### Which was updated more recently, ComfyUI or langchain?

Both got their last push on November 4, 2026.

The proof: [Comfy-Org/ComfyUI's commits on GitHub](https://github.com/Comfy-Org/ComfyUI/commits)

### Which has more commits signed by AI, ComfyUI or langchain?

In both, an AI signed 0.3% of their commits.

## Sources

- Comfy-Org/ComfyUI: Read on November 4, 2026, at commit 70bcb4e (https://github.com/Comfy-Org/ComfyUI/tree/70bcb4e9fc70f19b7cdb340966351ed6479f2188)
- langchain-ai/langchain: Read on November 4, 2026, at commit aa2528f (https://github.com/langchain-ai/langchain/tree/aa2528fb980a290d2b06c83a1be43e60bc2348f9)

## 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.