Compare
ComfyUI vs prefect
ComfyUI and prefect share 4 technologies: AIOHTTP, SQLAlchemy, alembic, and Pydantic. Both are written in Python.
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?PrefectHQ
prefect
Prefect is a workflow orchestration framework for building resilient data pipelines in Python.
Python24.1kRead on November 4, 2026, at commit 60d9ea5What is prefect built with?In common
- AIOHTTP
- SQLAlchemy
- alembic
- Pydantic
Only in ComfyUI
- torch
- einops
- transformers
- tokenizers
- sentencepiece
pillow
- av
psutil
Only in prefect
- FastAPI
- aiosqlite
- Redis
- Postgres
- SQLite
- starlette
uvicorn
- Ray
- Vite
- React
- @tanstack/react-router
- Vue
vue-router
- Rich
- azure-identity
- cryptography
- jinja2
- jsonschema
- OpenTelemetry
- docker
prometheus-client
- boto3
- Tailwind CSS
class-variance-authority
- next-themes
tailwind-merge
sonner
- React Hook Form
- Radix UI
- tanstack
recharts
- @uiw/react-codemirror
- codemirror
react-day-picker
dnd-kit
- cmdk
- GSAP
- Mermaid
- Lucide
- @radix-ui/react-icons
- react-markdown
- rehype-raw
- rehype-sanitize
remark-gfm
- Zod
@hookform/resolvers
Side by side
ComfyUIprefect
SizeLines written by people and agents, without generated ones; code files, without tests.
ComfyUI348,332 lines written731 code files
prefect945,152 lines written2,114 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
prefect9.7% of its commits signed by AIWith Devin, Claude Code, Codex, GitHub Copilot, and Cursor
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ComfyUILast push November 4, 20266,036 commits144,948 stars
prefectLast push November 4, 202618,695 commits24,112 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
prefect1,242 test files26.9% of its code files have a test that imports them
Frequently asked questions
Which is bigger, ComfyUI or prefect?
prefect, with 945,152 lines written in 2,114 code files; ComfyUI has 348,332 in 731.
The proof: PrefectHQ/prefect's code at commit 60d9ea5
Which has more GitHub stars, ComfyUI or prefect?
ComfyUI, with 144,948 stars; prefect has 24,112.
The proof: Comfy-Org/ComfyUI on GitHub
Which has more tests, ComfyUI or prefect?
prefect, with 1,242 test files; ComfyUI has 280.
The proof: PrefectHQ/prefect's code at commit 60d9ea5
Which was updated more recently, ComfyUI or prefect?
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 prefect?
prefect: an AI signed 9.7% of its commits, with Devin, Claude Code, Codex, GitHub Copilot, and Cursor; in ComfyUI, 0.3%.
The proof: the commits each tool signed in PrefectHQ/prefect
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