Estimated Belliste score, based on the available capabilities, quality, features and pricing information. It is an indicative profile estimate, not an independent benchmark.
How this profile estimate is calculated
Capabilities contribute 35%, quality wording 30%, listed features 20%, and pricing 15% when available. When capability fields are absent, specialization breadth supplies a 25% fallback. Missing categories are omitted and the remaining weights are rescaled. The estimate uses each model’s own published profile; it does not measure answer accuracy or replace a hands-on test.
OverviewOpenVoice V2Fish Audio S2 Pro
PriceFree · Open source (MIT)Free tier available · API from $15/1M UTF-8 bytes
SpecializationVoice Cloning · Voice Conversion · Multilingual Speech · Open SourceTTS · Voice Cloning · Multilingual Speech · Emotion Control · Real-time Audio
QualityFlexible cross-lingual cloning with controllable style and improved V2 audio quality.Highly expressive speech with fine-grained control over prosody, emotion, pacing and delivery.
FeaturesZero-shot Cloning · Cross-lingual · Style Control · Self-hosting · MIT LicenseVoice Cloning · API · Streaming · Multilingual · Emotion Control
Capabilities
14 specifications +
SpecificationOpenVoice V2Fish Audio S2 Pro
Number of voicesNot specifiedNot specified
Text-to-SpeechYes · base TTS plus tone-color conversionYes
Voice cloningZero-shot instant tone-color cloningInstant voice cloning supported
DubbingNot specifiedSupported through Fish Audio workflows
Supported languagesNative V2: English, Spanish, French, Chinese, Japanese, Korean; cross-lingual cloning80+ languages
Voice conversionTone-color conversionNot listed as a core S2 Pro capability
Real-time audioNot specifiedYes · streaming
Emotion controlEmotion, accent, rhythm, pauses and intonation controlOpen-ended natural-language direction tags
Voice designNot specifiedAvailable through Fish Audio platform plans
Speech-to-SpeechNot specifiedNot listed as a core S2 Pro capability
Voice libraryNot specifiedAvailable through Fish Audio platform
Emotion ControlNot specified15,000+ open-ended direction tags
Voice CloningZero-shot instant tone-color cloningInstant voice cloning
Voice DesignNot specifiedAvailable on platform plans
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