head to head · open source
ComfyUI vs CosyVoice
ComfyUI has 133,963 GitHub stars, 15,874 forks, 4,894 open issues and last shipped today. CosyVoice has 23,695 stars, 2,692 forks, 698 open issues and last shipped 4 months ago. ComfyUI leads on adoption by 465% (133,963 vs 23,695 stars). ComfyUI is written in Python under GPL-3.0; CosyVoice is written in Python under Apache-2.0. ComfyUI has attracted 12% as many forks as stars, CosyVoice 11%. ComfyUI 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 | CosyVoice | |
|---|---|---|
| GitHub stars | ★ 134K | ★ 24K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-20 | 2026-05-25 |
| Forks | ⑂ 16K | ⑂ 2.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 134K 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 CosyVoice if
- You want the CosyVoice feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and CosyVoice fits your workflow better
About ComfyUI
ComfyUI is a GPL 3.0 licensed Python and PyTorch node graph application, local API, and backend for running diffusion models across image, video, audio, 3D, and text workflows, built for visual professionals who want control over every model, parameter, and output, and for developers who embed those workflows into production pipelines.
read the full ComfyUI overview →
About CosyVoice
CosyVoice is an Apache 2.0 Python text to speech system built on large language models that ships inference, training and deployment for multi lingual voice generation, aimed at teams who need self hosted zero shot voice cloning and streaming speech synthesis rather than a hosted API.
read the full CosyVoice overview →
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Frequently asked questions
Is ComfyUI or CosyVoice more popular?
ComfyUI has 133,963 GitHub stars and CosyVoice has 23,695. ComfyUI has the larger community by that measure.
Are ComfyUI and CosyVoice free?
Both are open source. ComfyUI is licensed under GPL-3.0 and CosyVoice under Apache-2.0. Neither carries a licence fee.
What is the difference between ComfyUI and CosyVoice?
ComfyUI is written in Python and CosyVoice in Python. 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 CosyVoice?
Choose ComfyUI if you want the larger community (133,963 stars) or its GPL-3.0 licence terms. Choose CosyVoice if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.