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Fish Audio

Free tier

The most expressive, emotionally controllable real-time AI voice platform

Free tier available·All audiences·Powered by Fish Audio (proprietary models: Fish Audio S2.1 Pro, Fish Speech, OpenAudio)·API available·Open source

Key strengths

Ultra-low latency TTSVoice cloning from as little as 10-15 seconds of audio2,000,000+ community voices30+ language supportEmotionally controllable voice generation with emotion tagsPay-as-you-go API with SDKsOpen-source model (Fish Speech)
Free tier + paid plans
Founded 2023
Self-hostable

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Recent changes

  • Models updated: Fish Audio (proprietary models: Fish Audio S2.1 Pro, Fish Speech, OpenAudio)
  • Plans updated: Free plan available for personal use only (not commercial). Paid plans required for commercial use and full rights. API available with pay-as-you-go pricing.
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Fish Audio is a freemium AI voice platform founded in 2023 (HQ: USA) that exposes proprietary TTS and voice-cloning models — Fish Audio S2.1 Pro, Fish Speech, and OpenAudio — via a REST API with pay-as-you-go pricing. The platform is partially open-source (Fish Speech has 32,943+ GitHub stars), making it auditable and self-hostable for teams that need it. Core technical capabilities include:

  • Ultra-low latency TTS suitable for real-time streaming applications
  • Voice cloning from as little as 10–15 seconds of reference audio
  • Emotion tags for fine-grained, programmatic control over vocal affect
  • 30+ language support across all models
  • SDKs paired with a pay-as-you-go API for flexible cost scaling
  • Integrations with GPT Image, Seedance, Kling, Veo, Creatify, and MCP

The free tier is restricted to personal, non-commercial use; paid plans unlock commercial rights and higher throughput.

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