# S2.1 Pro

S2.1 Pro is a model from fish-audio. Release date unknown.

- Developer: fish-audio
- Id: fish-audio/s2.1-pro
- Status: API availability
- Canonical: https://alexgetman.com/models/fish-audio/s2-1-pro/

## Questions

### When was S2.1 Pro released?

Release date unknown

## Evidence links

- [OpenRouter · usage](https://openrouter.ai/rankings)
- [Vercel AI Gateway](https://vercel.com/ai-gateway)

## Signals

- [S1](https://alexgetman.com/signals/2026/09/18/s1-2/)
- [S2.1 Pro spotted on Vercel AI Gateway](https://alexgetman.com/signals/2026/09/17/fish-audio-s2-1-pro/)