Sonic 3.5 API Pricing
Short answer
Sonic 3.5 costs ~1 credit/character; plan-dependent effective USD rate. Last verified 2026-06-21 from docs.cartesia.ai. Confidence: Verified.
Sonic 3.5 is Cartesia's production TTS model for low-latency conversational applications and expressive multilingual speech.
TTS pricing
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Price detail~1 credit/character; plan-dependent effective USD rate
Capabilities
Speech / billing specSub-90ms; 42 languages; voice cloning
Modalitytext → streaming speech
ChannelCartesia API
ProviderCartesia
Best for
TTSRealtimeVoice cloning
Cartesia bills approximately one credit per character; effective dollar cost depends on the purchased credit plan. Together lists Sonic 3 at a flat hosted rate.
Last checked Verified