Source: https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/langflow-ai/langflow
Markdown source: https://seerepo.com/compare/Comfy-Org/ComfyUI/vs/langflow-ai/langflow.md
Description: ComfyUI and langflow share 5 technologies: AIOHTTP, SQLAlchemy, pillow, Pydantic, and psutil. Both are written in Python.

# ComfyUI vs langflow

ComfyUI and langflow share 5 technologies: AIOHTTP, SQLAlchemy, pillow, Pydantic, and psutil. 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.
- [langflow-ai/langflow](https://seerepo.com/r/langflow-ai/langflow): Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

## What they share and what sets them apart

- In common: AIOHTTP, SQLAlchemy, pillow, Pydantic, psutil
- Only in ComfyUI: alembic, torch, einops, transformers, tokenizers, sentencepiece, av
- Only in langflow: FastAPI, pyarrow, oracledb, Redis, Google, OpenAI, uvicorn, Vite, React, react-router-dom, Rich, cryptography, pyjwt, bcrypt, google-auth-oauthlib, firecrawl-py, LangChain, langchain-classic, MCP, exa-py, defusedxml, pypdf, markitdown, jsonschema, msgspec, validators, loguru, boto3, Tailwind CSS, class-variance-authority, tailwind-merge, xyflow, Radix UI, ag-grid-community, Framer, react-hotkeys-hook, use-stick-to-bottom, react-syntax-highlighter, ace-builds, Headless UI, cmdk, elkjs, react-day-picker, react-error-boundary, react-sortablejs, reactflow, Lucide, react-icons, @radix-ui/react-icons, react-markdown, remark-gfm, dompurify, rehype-sanitize, rehype-raw

## Side by side

| | ComfyUI | langflow |
|---|---|---|
| Size | 348,332 lines written, 731 code files | 1,446,517 lines written, 3,937 code files |
| Who writes it | 0.3% of its commits signed by AI. With Amp, Claude Code, and GitHub Copilot | 1.5% of its commits signed by AI. With Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp |
| Activity | Last push November 4, 2026, 6,036 commits, 144,948 stars | Last push November 4, 2026, 17,600 commits, 156,316 stars |
| Tests | 280 test files. 21.8% of its code files have a test that imports them | 3,083 test files. 35.1% 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, ComfyUI or langflow?

langflow, with 1,446,517 lines written; ComfyUI has 348,332.

The proof: [langflow-ai/langflow's code at commit 60999cc](https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

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

langflow, with 156,316 stars; ComfyUI has 144,948.

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

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

langflow, with 3,083 test files; ComfyUI has 280.

The proof: [langflow-ai/langflow's code at commit 60999cc](https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

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

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 langflow?

langflow: an AI signed 1.5% of its commits, with Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp; in ComfyUI, 0.3%.

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

## Sources

- Comfy-Org/ComfyUI: Read on November 4, 2026, at commit 70bcb4e (https://github.com/Comfy-Org/ComfyUI/tree/70bcb4e9fc70f19b7cdb340966351ed6479f2188)
- langflow-ai/langflow: Read on November 4, 2026, at commit 60999cc (https://github.com/langflow-ai/langflow/tree/60999cc9a7350e44dde3ef641baae864e10861f0)

## 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.