Cepstral vs Chatterbox TTS
Cepstral
cepstral.com
Chatterbox TTS
github.comSide by side
| Figure | Cepstral | Chatterbox TTS |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Text-to-Speech Software | 8.4 (#61) | 9.0 (#9) |
| Spec score · Text-to-speech tools | 8.0 (#102) | 8.9 (#21) |
| Commercial use | Yes | Yes |
| Export formats | WAV | WAV |
| Free plan | No | Yes |
| Languages | Cepstral lists US English, Canadian French, Americas Spanish, UK English, German, and Italian voices. | The README lists 23 supported languages for Chatterbox Multilingual. |
| Platforms | The personal product page lists Windows, Mac, and Linux voices; the download page offers personal voice and telephony installers. | linux,macos,self_hosted |
| Product | Cepstral makes text-to-speech software that turns text into clear, natural-sounding speech. | Chatterbox is a family of open-source text-to-speech models by Resemble AI. |
| Support | Cepstral provides product support information, tutorials, community forums, and a way to open a support ticket. | The README invites users to join the project’s Discord community. |
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.