GPT-SoVITS vs MeloTTS
A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | GPT-SoVITS | MeloTTS |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 88 · Excellent | 23 · At risk |
| Category | Self-Hosted AI | Self-Hosted AI |
| License | MIT | MIT |
| Language | Python | Python |
| Setup difficulty | Hard | Medium |
| Min. RAM | 4,096 MB | 2,048 MB |
| Deployment | docker, source | docker, source |
| GitHub stars | ★ 62,097 | ★ 7,647 |
| First released | 2024 | 2024 |
| Replaces | ElevenLabs | ElevenLabs, Amazon Polly |
What are GPT-SoVITS and MeloTTS?
GPT-SoVITS
GPT-SoVITS is an open-source voice conversion and text-to-speech system capable of cloning a voice from a very short audio sample. It can be self-hosted with a web UI for training and generating speech in multiple languages.
- Few-shot voice cloning
- Multilingual synthesis
- Web training UI
- Runs locally
MeloTTS
MeloTTS is an open-source multilingual text-to-speech library from MyShell that supports several languages and accents with fast CPU inference. It can be self-hosted to generate natural speech without cloud services.
- Multilingual speech synthesis
- Real-time CPU inference
- Multiple English accents
- Open weights
GPT-SoVITS vs MeloTTS: key differences
Both projects are written in Python. MeloTTS is the lighter option, starting around 2,048 MB of RAM against 4,096 MB for GPT-SoVITS. GPT-SoVITS has the considerably larger community, at 62,097 GitHub stars versus 7,647.
Why pick each one
Choose GPT-SoVITS if…
- Clones voices from seconds
- Multilingual speech output
- Web UI included
Watch out for
- GPU strongly recommended
- Setup complexity
Choose MeloTTS if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Mature project with 7.6k GitHub stars
- Written in Python
Frequently asked questions
Is GPT-SoVITS or MeloTTS better?
Neither is universally better. GPT-SoVITS has the larger community, while MeloTTS is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are GPT-SoVITS and MeloTTS free and open-source?
Yes. GPT-SoVITS is licensed under MIT and MeloTTS under MIT. Both can be self-hosted at no software cost.
Can I run GPT-SoVITS and MeloTTS with Docker?
GPT-SoVITS: yes. MeloTTS: yes.
Which is lighter on resources, GPT-SoVITS or MeloTTS?
MeloTTS has the smaller minimum footprint at 2,048 MB of RAM, compared to about 4,096 MB for GPT-SoVITS. Real-world usage depends on library size, user count, and enabled features.