Supertonic 3
7.2#87 in text-to-speech toolsAndroidiOSWebAPI
VisitSupertonic 3 vs Voicebox
What both publish
| Fact | Supertonic 3 | Voicebox |
|---|---|---|
| API | The maker links a Supertone API for expressive voice generation across 31 languages with adjustable speech controls. | Voicebox exposes a local REST API for speech generation, voice profiles, model status, generation history, and health checks. |
| API access | Yes | Yes |
| Commercial use | The model weights use OpenRAIL-M, which allows commercial use subject to use restrictions and attribution requirements. | Yes |
| Free plan | Yes | Yes |
| Languages | The model supports 31 languages without per-language fine-tuning. | 23 |
| Product | Supertonic 3 is a 99M-parameter open-weight multilingual text-to-speech model that runs locally on CPU using ONNX Runtime. | Voicebox is a free, open-source local AI voice studio for voice cloning, speech generation, dictation, and agent voice output. |
Supertonic 3 plans
No prices published.
Voicebox plans
- LocalFree
- Cloud$12 a year
- Studio$48 a year
Pick Supertonic 3 if…
You want what its maker publishes above — check its page for the details.
Pick Voicebox if…
Voicebox may suit people creating voice content, dictating into apps, or adding voice output to agents. Its local operation and API may appeal to users who want offline workflows or client integrations.