Chatterbox TTS vs MetaVoice-1B
Chatterbox TTS
github.comMetaVoice-1B
themetavoice.xyzSide by side
| Figure | Chatterbox TTS | MetaVoice-1B |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 0 |
| Spec score · Text-to-Speech Software | 9.0 (#9) | 7.7 (#144) |
| Spec score · Text-to-speech tools | 8.9 (#21) | 7.5 (#166) |
| Commercial use | Yes | Yes |
| Expressive speech | Turbo supports paralinguistic tags such as [sigh], [gasp], [cough], and [laugh] to prompt vocal reactions. | The project prioritizes emotional speech rhythm and tone in English. |
| Free plan | Yes | Yes |
| License | The code and model listing identify the project as MIT licensed, permitting modification and redistribution subject to the license notice. | The model is released under the Apache 2.0 license, which the project describes as usable without restrictions. |
| Platforms | linux,macos,self_hosted | web,api,self_hosted |
| Support | The README invites users to join the project’s Discord community. | The repository directs users to its active GitHub issues for contributions and discussion. |
| Voice cloning | Models can generate speech conditioned on a short reference audio clip. | It supports zero-shot cloning of American and British voices using 30 seconds of reference audio. |
Plans
Chatterbox TTS
- Chatterbox open-source modelsFree
- Voice AI Research (Chatterbox)Free
In their own words
Chatterbox TTS
Chatterbox TTS is a family of open-source text-to-speech models from Resemble AI. Its listed choices include Turbo, Nano, Multilingual V3, and dedicated single-language models. Turbo supports tags that can prompt reactions such as sighs, gasps, coughs, and laughter; Nano is intended for on-device or CPU use when memory and latency budgets are tight. The README lists 23 languages for Multilingual. The project supports voice cloning, audio input, batch processing, voice isolation, and WAV export. Generated audio carries Resemble AI’s PerTh watermark. The repository is MIT licensed, and its listed plan costs nothing for research and development. Resemble says it has stopped offering voice generation as a commercial product, while its models remain open and free for research and development. The README provides pip and source installation instructions and describes Python 3.11 on Debian 11, with CUDA, CPU, and MPS device options. Listed platforms are Linux, macOS, and self-hosted.
MetaVoice-1B
MetaVoice-1B has no write-up on Specifiction yet; its figures are above.