AI & Machine LearningAIFree

Fish Audio

Free unlimited S2.1 Pro TTS API

Text-to-speech and voice cloning API with 83 languages and ~70ms latency

Verified Global

Important notes

Same S2.1 Pro model as the paid tier — normally $15 per million UTF-8 bytes — free through August 31, 2026 with no hard character cap. Voice cloning and all 83 languages included.

No SLA or latency guarantee, and requests may be used to improve the model. Built for prototyping and evaluation, not production.

Open to everyone — no student verification needed. Sign up, create an API key, then set the model header to s2.1-pro-free.

Offers verified regularly. Terms vary by provider and region. Not affiliated with listed companies.