Name: Fish Audio: S2.1 Pro Free (free)
Author: fish-audio

Question 1

What is S2.1 Pro Free (free)?

Accepted Answer

S2.1 Pro Free is the no-cost variant of Fish Audio S2.1 Pro, intended for testing, prototyping, and low-volume applications. It provides the same synthesis capabilities without production latency or availability guarantees, and submitted data may be used by Fish Audio to improve the model.

Question 2

Is S2.1 Pro Free (free) free?

Accepted Answer

Yes. The pricing shown on this page for S2.1 Pro Free (free) is zero, so you are not charged for generated speech. Free endpoints are rate limited — see the rate limit docs.

Question 3

What inputs and outputs does S2.1 Pro Free (free) support?

Accepted Answer

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

Question 5

When was S2.1 Pro Free (free) released?

Accepted Answer

S2.1 Pro Free (free) was released on 2026-07-29.

Fish Audio: S2.1 Pro Free (free)

fish-audio/s2.1-pro-free:free

Fish Audio: S2.1 Pro Free (free)

fish-audio/s2.1-pro-free:free

Frequently asked questions

Frequently asked questions