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.

Yes, Fish Audio S2 has open weights and can be downloaded and self-hosted.

The context window size for Fish Audio S2 has not been publicly disclosed.

Fish AudioAUDIO Open weight

Fish Audio S2 is the benchmark-topping open TTS — the most expressive self-hostable voice model, beating ElevenLabs on several independent tests.

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.

Open weights (research licence; commercial needs a separate licence). Hosted from ~$11/mo; API ~$15 per 1M chars.