Chatterbox TTS vs IndexTTS
Chatterbox TTS
github.comIndexTTS
github.comSide by side
| Figure | Chatterbox TTS | IndexTTS |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Voice Cloning Software | 9.1 (#1) | 8.8 (#6) |
| Spec score · Text-to-Speech Software | 9.0 (#9) | 8.8 (#23) |
| Spec score · Text-to-speech tools | 8.9 (#21) | 8.9 (#22) |
| Spec score · AI voice cloning tools | 9.0 (#4) | 8.8 (#9) |
| Commercial use | Yes | For commercial usage and cooperation, the project directs users to contact [email protected]. |
| Export formats | WAV | WAV |
| Languages | The README lists 23 supported languages for Chatterbox Multilingual. | IndexTTS-2.5 supports Chinese, English, Japanese, Spanish, and Arabic. |
| License | The code and model listing identify the project as MIT licensed, permitting modification and redistribution subject to the license notice. | The project says it is released under the bilibili Model Use License Agreement and asks users to read its disclaimer before use. |
| Platforms | linux,macos,self_hosted | web,windows,linux,api,self_hosted |
| Product | Chatterbox is a family of open-source text-to-speech models by Resemble AI. | IndexTTS is a zero-shot text-to-speech system that clones a voice from a single reference audio clip. |
| Support | The README invites users to join the project’s Discord community. | The README lists QQ groups, a Discord server, and [email protected] as community contact options. |
| Voice cloning | Models can generate speech conditioned on a short reference audio clip. | Yes |
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.