head to head · open source
CosyVoice vs Morphic
CosyVoice has 23,661 GitHub stars, 2,690 forks, 698 open issues and last shipped 4 months ago. Morphic has 9,124 stars, 2,348 forks, 56 open issues and last shipped 2 days ago. CosyVoice leads on adoption by 159% (23,661 vs 9,124 stars). CosyVoice is written in Python under Apache-2.0; Morphic is written in TypeScript under Apache-2.0. CosyVoice has attracted 11% as many forks as stars, Morphic 26%. Morphic 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
| CosyVoice | Morphic | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 9.1K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-05-25 | 2026-09-16 |
| Forks | ⑂ 2.7K | ⑂ 2.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick CosyVoice if
- You weight community size — 24K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Morphic if
- You want the Morphic feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Morphic fits your workflow better
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 →
About Morphic
Morphic is an open source, AI powered search engine and answer engine with a generative user interface. It lives in the TypeScript, Next.js, React, and Vercel AI SDK ecosystem, and it is distributed under the Apache 2.0 license. The project combines model selection, search providers, chat history, file upload, and shareable result URLs in one web application.
read the full Morphic overview →
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Frequently asked questions
Is CosyVoice or Morphic more popular?
CosyVoice has 23,661 GitHub stars and Morphic has 9,124. CosyVoice has the larger community by that measure.
Are CosyVoice and Morphic free?
Both are open source. CosyVoice is licensed under Apache-2.0 and Morphic under Apache-2.0. Neither carries a licence fee.
What is the difference between CosyVoice and Morphic?
CosyVoice is written in Python and Morphic 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, CosyVoice or Morphic?
Choose CosyVoice if you want the larger community (23,661 stars) or its Apache-2.0 licence terms. Choose Morphic if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.