Fish Audio specializes in emotional text-to-speech and voice cloning, generating realistic voices with nuanced expressiveness for content creators and developers. The platform makes high-quality, scalable voice generation accessible, handling everything from audiobook narration to character voices with emotional depth that standard TTS systems lack.
Fish Audio: Open-Source TTS with 30-Second Voice Cloning
Fish Audio delivers ultra-realistic AI voice synthesis, enabling users to convert written text into natural-sounding speech. A key differentiator is its ability to apply emotional nuances and tone tags, with support for 50 distinct emotions. The tool also excels at voice cloning, capable of replicating voices from audio samples as short as 10-30 seconds. Beyond generation, it offers speech-to-text (STT) transcription and a vast community library featuring over 200,000 voices.
Voice AI Developers, Audiobook Creators, and Localization Teams
Fish Audio serves voice-over artists, game studios, and accessibility developers.
150+ Languages, Real-Time Streaming, and Emotion Control
Fish Audio utilizes advanced models like S2 Pro, supporting voice generation in over 80 languages. Its 50 emotion and tone tags allow for precise control over prosody and expressiveness. The platform boasts ultra-low latency, with TTS generation often completing under 150ms and API responses for 100-word scripts under 2 seconds, making it suitable for real-time applications. Developers can integrate Fish Audio into their workflows using its RESTful API and SDKs for Python and Node.js. Output audio formats include WAV, MP3, and Opus, with sample rates from 8kHz to 48kHz and various bitrates. The open-source Fish-Speech model forms a core technical foundation.
Free Tier, Pay-per-Character API
Fish Audio offers a free plan and several paid tiers, positioning itself as a cost-effective alternative to other solutions.
| Plan | Price | Key Details |
|---|---|---|
| Free | Free | 8,000 monthly credits (approx. 7 minutes S1/S2 generation), personal non-commercial use |
| Plus | $11/month (or $132/year) | 200 minutes of generation, commercial rights |
| Pro | $75/month (or $900/year) | 27 hours (1,620 minutes) of generation, for power users and enterprises |
| Max | $749/month (or $8988/year) | Up to 6,250 minutes of generation, for large-scale production |
API pricing is pay-as-you-go: $15.00 per million UTF-8 bytes for TTS (S2 Pro, S1 models) and $0.36 per audio hour for ASR (transcribe-1).
Fastest Voice Cloning from Minimal Audio Samples
Fish Audio stands out for its competitive pricing, often being 50-70% cheaper than alternatives like ElevenLabs, while maintaining high quality. Its ability to generate entire scripts in one go, minimizing the need for constant tweaking to maintain voice consistency, is a significant advantage. The platform excels in producing realistic, expressive, and emotionally rich text-to-speech and voice cloning, supported by strong multilingual performance and reliable cross-language cloning. The combination of an open-source foundation, a large community voice library, and a full developer API makes it a scalable solution for professionals and developers.
Quality Varies by Language, Limited Documentation in English
Fish Audio has tier-based limitations around credit allowances:
- Free tier credits are limited and may be insufficient for extensive testing or regular use.
- Extreme emotion settings can produce theatrical results, and voice consistency may require multiple attempts.
- Some less common languages and accents have lower quality output compared to the primary supported languages.