Question 1

What is S2.1 Pro?

Accepted Answer

S2.1 Pro is a production-oriented text-to-speech model from Fish Audio. It is suited for multilingual voice applications, expressive narration, and dialogue synthesis, with open-ended natural-language controls for speaking style and emotion.

Question 2

How much does S2.1 Pro cost?

Accepted Answer

S2.1 Pro costs $15.00/M UTF-8 bytes.

Question 3

What inputs and outputs does S2.1 Pro support?

Accepted Answer

S2.1 Pro accepts text as input and returns generated speech audio.

Question 4

What other speech models does Fish Audio have?

Accepted Answer

S1, S2 Pro and S2.1 Pro Free (free) are other speech models from Fish Audio.

Question 5

When was S2.1 Pro released?

Accepted Answer

S2.1 Pro was released on 2026-07-29.

Fish Audio: S2.1 Pro

fish-audio/s2.1-pro

Fish Audio: S2.1 Pro

fish-audio/s2.1-pro

Frequently asked questions

Frequently asked questions