IndexTTS — Try Bilibili's Open-Source TTS Model Online via Fish Speech
IndexTTS is an open-source industrial-grade text-to-speech model released by Bilibili. It achieves state-of-the-art voice cloning quality with a focus on consistency and naturalness across long-form content — available on Fish Speech.
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Funciones principales
- ✓Industrial-grade voice cloning
- ✓Consistent quality across long-form content
- ✓Open-source (Apache 2.0)
- ✓Strong Chinese and English quality
- ✓Chunked generation for long texts
- ✓Low hallucination rate
Ideal para
- →Long-form narration
- →Open-source enthusiasts
- →Chinese content
- →Consistent voice across chapters
Idiomas compatibles
10+
Chinese, English, Japanese, Korean, Cantonese & más
IndexTTS frente a sus alternativas
| Plataforma | Calidad | Velocidad | Idiomas | Clonación de voz | Precios |
|---|---|---|---|---|---|
| Fish Speech (IndexTTS) | ★★★★★ | Medium | 10+ | ✓ 10s sample | Free tier + from $9/mo |
| Fish Audio | ★★★★★ | Ultra-fast | 40+ | ✓ | Free tier + from $9/mo |
| CosyVoice | ★★★★ | Fast | 10+ | ✓ | Free tier + from $9/mo |
| ElevenLabs | ★★★★★ | Fast | 32 | ✓ Paid only | From $5/mo (limited) |
Preguntas frecuentes
What is IndexTTS?
IndexTTS is an open-source industrial-grade TTS model released by Bilibili. It is designed for high-quality voice cloning with consistent output across long-form content like audiobooks and podcasts.
Is IndexTTS open source?
Yes. IndexTTS is released under the Apache 2.0 license. You can use it commercially via Fish Speech or self-host it.
How does IndexTTS compare to Fish Audio?
Both are strong open-source TTS models. IndexTTS excels at consistency in long-form content, while Fish Audio offers broader language support and lower latency for real-time use.
Can I try IndexTTS without setting up anything?
Yes. Fish Speech hosts IndexTTS so you can try it instantly in your browser — no GPU, no API key, no setup required.