Sprag
7.6#57 in text-to-speech toolsFree planFree planWebAPISelf-hosted
VisitSprag vs Voicebox
What both publish
| Fact | Sprag | Voicebox |
|---|---|---|
| API access | Yes | Yes |
| Free plan | No | Yes |
| Languages | 10 | 23 |
| Product | Sprag offers native speech-to-speech agents and an STT-to-LLM-to-TTS voice pipeline through one API. | Voicebox is a free, open-source local AI voice studio for voice cloning, speech generation, dictation, and agent voice output. |
| Self-hosting | The homepage links to a self-hosted deployment option. | The backend can run locally or on a separate Docker or bare-host machine for remote-mode connections. |
Sprag plans
- Chorus$0.70 a month
- Chorus Design$15 a month
- Chorus Clone$4.50 a month
- Symphony NotesFree
- Rhythm$0.08, paid once
- Symphony$0.09, paid once
Voicebox plans
- LocalFree
- Cloud$12 a year
- Studio$48 a year
Pick Sprag if…
Sprag is intended for developers aged 16 and older who need speech recognition, synthesis or realtime voice agents. Its API and self-hosting options may suit teams integrating speech capabilities into their own applications or deployments.
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.