head to head · open source
ComfyUI vs assistant-ui
ComfyUI has 144,907 GitHub stars, 17,244 forks, 4,894 open issues and last shipped today. assistant-ui has 12,936 stars, 1,311 forks, 207 open issues and last shipped today. ComfyUI leads on adoption by 1,020% (144,907 vs 12,936 stars). ComfyUI is written in Python under GPL-3.0; assistant-ui is written in TypeScript under MIT. ComfyUI has attracted 12% as many forks as stars, assistant-ui 10%. assistant-ui was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ComfyUI | assistant-ui | |
|---|---|---|
| GitHub stars | ★ 145K | ★ 13K |
| License | GPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 17K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 145K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick assistant-ui if
- You want the assistant-ui feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and assistant-ui fits your workflow better
About ComfyUI
ComfyUI The most powerful and modular AI engine for content creation. [![Website][website shield]][website url] [![Dynamic JSON Badge][discord shield]][discord url] [![Twitter][twitter shield]][twitter url] [![Matrix][matrix shield]][matrix url] [![][github release shield]][github release link] [![][github release date shield]][github release link] [![][github downloads shield]][github downloads link] [![][github downloads latest shield]][github downloads link] [matrix shield]: [matrix url]: [website shield]: [website url]: [discord shield]: [discord url]: [twitter shield]: [twitter url]: [github release…
read the full ComfyUI overview →
About assistant-ui
Product · Documentation · Examples · Discord · Contact Sales The UX of ChatGPT in your React app 💬🚀 assistant ui is an open source TypeScript/React library to build production grade AI chat experiences fast. Installation The fastest path is the CLI, which scaffolds a Next.js app or adds the styled components to an existing project: Or install the packages directly: Usage useChatRuntime connects to the Vercel AI SDK out of the box. Swap it for useLangGraphRuntime , useDataStreamRuntime , or any custom runtime to integrate with your own backend. What you get Composable primitives : build any chat UX from Thread…
read the full assistant-ui overview →
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Frequently asked questions
Is ComfyUI or assistant-ui more popular?
ComfyUI has 144,907 GitHub stars and assistant-ui has 12,936. ComfyUI has the larger community by that measure.
Are ComfyUI and assistant-ui free?
Both are open source. ComfyUI is licensed under GPL-3.0 and assistant-ui under MIT. Neither carries a licence fee.
What is the difference between ComfyUI and assistant-ui?
ComfyUI is written in Python and assistant-ui in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ComfyUI or assistant-ui?
Choose ComfyUI if you want the larger community (144,907 stars) or its GPL-3.0 licence terms. Choose assistant-ui if its feature set, stack or MIT licence fits better. Both are self-hostable.