How much does S2 Pro cost?

S2 Pro pricing information is not yet available.

What benchmarks has S2 Pro been tested on?

S2 Pro has not been benchmarked yet. Scores are added as benchmarks are published.

Is S2 Pro open source?

No, S2 Pro is a proprietary model by Fish Audio.

How does S2 Pro compare to GPT-5.4 Image 2?

S2 Pro has an average score of 0.0 while GPT-5.4 Image 2 scores 0.0. GPT-5.4 Image 2 slightly outperforms S2 Pro overall. See full comparison →

Home/Models/S2 Pro

S2 Pro

Name: S2 Pro
Author: Fish Audio

by Fish Audio · Released Mar 2026

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Context

N/A

Input $/1M

TBD

Output $/1M

TBD

Type

text-to-speech

License

Proprietary

Benchmarks

0 tested

Data updated today

About

Fishaudio text to speech model. 18K downloads on HuggingFace.

No benchmark data available yet.

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fishaudio-s2-pro

Specifications

Typetext-to-speech
ContextN/A
ReleasedMar 2026
LicenseProprietary
StatusActive

Available On

Fish AudioTBD

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transformer tokens

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Frequently Asked Questions

S2 Pro is a proprietary text-to-speech AI model by Fish Audio, released in March 2026.

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S2 Pro

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