Fish Speech vs IndexTTS
Fish Speech
github.comIndexTTS
github.comSide by side
| Figure | Fish Speech | IndexTTS |
|---|---|---|
| Price from | $11/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 1 |
| Spec score · AI voice cloning tools | 8.4 (#17) | 8.8 (#9) |
| Spec score · Voice Cloning Software | 8.4 (#11) | 8.8 (#6) |
| Languages | The repository describes S2 Pro as supporting more than 80 languages without phonemes or language-specific preprocessing. | IndexTTS-2.5 supports Chinese, English, Japanese, Spanish, and Arabic. |
| License | The Fish Audio Research License permits research and non-commercial use free of charge, while commercial use requires a separate written license. | The project says it is released under the bilibili Model Use License Agreement and asks users to read its disclaimer before use. |
| Purpose | Fish Speech is an open source multilingual text-to-speech system that generates expressive speech. | IndexTTS is a zero-shot text-to-speech system that clones a voice from a single reference audio clip. |
| Support | Enterprise support includes 24/7 production support, a technical account manager, and a 99% uptime SLA. | The README lists QQ groups, a Discord server, and [email protected] as community contact options. |
| Voice cloning | S2 supports voice cloning from short reference samples, typically 10–30 seconds, without additional fine-tuning. | Yes |
Plans
Fish Speech
- Free TierFree
- Plus$11 a month
- Pro$75 a month
- Max$749 a month
- EnterprisePriced on request
In their own words
Fish Speech
Fish Speech has no write-up on Specifiction yet; its figures are above.