Fish Audio: S2.1 Pro
by Fish Audio · Released 2026-07-29
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...
Released2026-07-29
What it can do
What this model can take in, what it replies with, and what it does not do.
Not for
- Fine-tuning on your own data — not supported
Also supports
Tool callingStructured JSONStep-by-step reasoningStreamingPrompt cachingFine-tuning
Where your request runs
You call one endpoint. Behind it, OpenDunes keeps every one of these live — if one degrades, the next takes the request without you changing a line.
| Provider | In /M | Out /M | Cache /M | Latency | TPS | Uptime |
|---|---|---|---|---|---|---|
| Fish Audio | 4 860 DA | Free | — | — | — | — |
Routed through the Bifrost gateway · prices in Algerian Dinars per 1M tokens · you’re charged the price of the endpoint that served your request.
What it costs
Each request charges exactly what it uses — no subscription, no minimum.
4 860 DA / 1M chars
Top up points
3 000 DA ≈ 2 057 typical replies · the exact charge appears after every request, down to the centime.
Call it in code
OpenAI-compatible — point any OpenAI SDK at our base URL and keep your code. Copy the request, or run it right here on your wallet.
Sign in to run this request on your own wallet.
The same request, in your language
Limits
The hard numbers — what it can take in, what it can give back, and where it stops.
- Tokenizer
- Other
- Released
- 2026-07-29
Questions about S2.1 Pro
What can S2.1 Pro handle?
It reads text and replies with audio.
Can I use S2.1 Pro without an international bank card?
Yes. Top up your OpenDunes balance in dinars with a CIB or Edahabia card, then spend it on S2.1 Pro or any other model in the catalog from that same balance. No foreign card, no currency conversion, no subscription.
Who makes S2.1 Pro?
S2.1 Pro is built by Fish Audio, released on Jul 29, 2026. OpenDunes serves it unchanged — same model, same weights, billed in dinars.
Other Fish Audio models, priced in dinars
See all Fish Audio modelsFish Audio: Transcribe 1
fish-audio/transcribe-1Transcription
Transcribe 1 is a speech-to-text model from Fish Audio. It is suited for audio transcription with automatic language detection and can return timestamped word-level segments when alignment details are requested.
AudioText
0,03 DA / hourby Fish AudioJul 29, 2026
Fish Audio: S1
fish-audio/s1Speech
S1 is a multilingual text-to-speech model from Fish Audio. It is suited for voice applications that need broad emotional expression, using parenthetical controls to guide speaking style across its supported...
TextAudio
4 860 DA / 1M charsby Fish AudioJul 29, 2026
Fish Audio: S2 Pro
fish-audio/s2-proSpeech
S2 Pro is a multilingual text-to-speech model from Fish Audio. It is suited for expressive narration and multi-speaker dialogue, with natural-language controls for speaking style and emotion.
TextAudio
4 860 DA / 1M charsby Fish AudioJul 29, 2026