S1

by Fish AudioSpeech synthesis

Speech generation model for controllable voice, narration, and audio delivery

00
Released
2025-10-20
Weights
Closed

fish-audio/s1 · also seen as fish-audio/s1-20260729

Specifications

Full facts as recorded, incl. what is unknown.

Released
2025-10-20
Weights
Closed
Input
Text
Output
Audio
Context window
max across endpoints
Max output
Providers
1 + 2 gateways, not counted as providers
Epoch Capabilities Index
not evaluated
Direct price range
no comparable direct price
More details
Last updated
2025-10-20
Knowledge cutoff

Capabilities

Across all endpoints: supported if any endpoint supports it.

  • Tool calling
  • Parallel toolsunknown
  • Structured outputunknown
  • Reasoning
  • Image input
  • PDF input
  • Audio input
  • Audio outputunknown
  • Video input
  • Prompt cachingunknown
  • Web searchunknown
  • Computer useunknown
  • System messagesunknown
  • Assistant prefillunknown
  • Temperatureunknown
  • Streamingunknown
  • Attachments

Endpoints

One row per provider and variant; gateways are listed separately.

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Cost calculator

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Heads up: prices are indicative list rates scraped from provider pricing pages; verify with the provider before relying on them. Report incorrect data for this model