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ComfyUI vs langflow

ComfyUI and langflow share 5 technologies: AIOHTTP, SQLAlchemy, pillow, Pydantic, and psutil. Both are written in Python.

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What they share and what sets them apart

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.

Python144.9kRead on November 4, 2026, at commit 70bcb4eWhat is ComfyUI built with?
langflow-ai

langflow

Langflow is a powerful tool for building and deploying AI-powered agents and workflows.

Python156.3kRead on November 4, 2026, at commit 60999ccWhat is langflow built with?

In common

Only in ComfyUI

  • alembic
  • torch
  • einops
  • transformers
  • tokenizers
  • sentencepiece
  • av

Only in langflow

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
ComfyUI348,332 lines written731 code files
langflow1,446,517 lines written3,937 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
ComfyUI0.3% of its commits signed by AIWith Amp, Claude Code, and GitHub Copilot
langflow1.5% of its commits signed by AIWith Claude Code, CodeRabbit, GitHub Copilot, Cursor, Codex, and Warp
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ComfyUILast push November 4, 20266,036 commits144,948 stars
langflowLast push November 4, 202617,600 commits156,316 stars
TestsThe files that test the code, and the share of code files a test imports.
ComfyUI280 test files21.8% of its code files have a test that imports them
langflow3,083 test files35.1% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ComfyUI or langflow?
langflow, with 1,446,517 lines written in 3,937 code files; ComfyUI has 348,332 in 731.

The proof: langflow-ai/langflow's code at commit 60999cc

Which has more GitHub stars, ComfyUI or langflow?
langflow, with 156,316 stars; ComfyUI has 144,948.

The proof: langflow-ai/langflow on GitHub

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

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

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

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