head to head · open source
openhuman vs CosyVoice
openhuman has 39,838 GitHub stars, 3,928 forks, 189 open issues and last shipped yesterday. CosyVoice has 23,661 stars, 2,690 forks, 698 open issues and last shipped 4 months ago. openhuman leads on adoption by 68% (39,838 vs 23,661 stars). openhuman is written in Rust under GPL-3.0; CosyVoice is written in Python under Apache-2.0. openhuman has attracted 10% as many forks as stars, CosyVoice 11%. openhuman 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
| openhuman | CosyVoice | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 24K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Rust | Python |
| Last push | 2026-09-17 | 2026-05-25 |
| Forks | ⑂ 3.9K | ⑂ 2.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openhuman if
- You weight community size — 40K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Rust
- 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 openhuman
OpenHuman is an open source, GPL 3.0 licensed agent harness written in Rust and shipped as a Tauri desktop application, aimed at individuals who want a personal AI assistant whose memory, orchestration, and research tooling run local first on their own machine.
read the full openhuman 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 openhuman or CosyVoice more popular?
openhuman has 39,838 GitHub stars and CosyVoice has 23,661. openhuman has the larger community by that measure.
Are openhuman and CosyVoice free?
Both are open source. openhuman is licensed under GPL-3.0 and CosyVoice under Apache-2.0. Neither carries a licence fee.
What is the difference between openhuman and CosyVoice?
openhuman is written in Rust 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, openhuman or CosyVoice?
Choose openhuman if you want the larger community (39,838 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.