Fish Audio S2
Fish AudioAUDIO Open weight
- Provider
- Fish Audio
- Modality
- AUDIO
- Parameters
- —
- Context window
- —
- Weights
- Open
- Released
- 1 Jan 2026
Fish Audio S2 is the benchmark-topping open TTS — the most expressive self-hostable voice model, beating ElevenLabs on several independent tests.
Best for
- Tops independent 2026 TTS benchmarks (EmergentTTS-Eval, Audio Turing Test)
- Most expressive open-source / self-hostable TTS
- Fine-grained control + production streaming
- 80+ language coverage including many Asian languages
How it compares — and the India angle
- Self-hostable for free (non-commercial) — strong for Indian devs avoiding per-character API fees.
- Benchmark-beating quality vs ElevenLabs at lower hosted cost; check the licence before commercial Indian use.
- Good open alternative when ElevenLabs' commercial pricing is too high for Indian budgets.
How to access
Open weights (research licence; commercial needs a separate licence). Hosted from ~$11/mo; API ~$15 per 1M chars.
Access Fish Audio S2Frequently asked questions
What is Fish Audio S2?
Fish Audio S2 is a audio AI model developed by Fish Audio.
Who made Fish Audio S2?
Fish Audio S2 was created by Fish Audio.
Is Fish Audio S2 open source?
Yes, Fish Audio S2 has open weights and can be downloaded and self-hosted.
What is Fish Audio S2's context window?
The context window size for Fish Audio S2 has not been publicly disclosed.