CartesiaCartesia Sonic
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OverviewCartesia SonicSecond model
PriceFree $0/month · Paid from $5/month—
SpecializationTTS · Voice Cloning · Real-time Audio · Multilingual Speech · Voice Agents—
QualityNatural, expressive speech optimized for real-time conversations.—
FeaturesVoice Cloning · API · Streaming · Multilingual · Voice Library—
Capabilities
11 specifications +
SpecificationCartesia SonicSecond model
Number of voicesNot specifiedNot specified
Text-to-SpeechYesNot specified
Voice cloningInstant and ProfessionalNot specified
Supported languages44 languagesNot specified
Voice conversionNot specifiedNot specified
Real-time audioYesNot specified
Emotion controlEmotion and expressive controlsNot specified
Speech-to-SpeechNot specifiedNot specified
Voice libraryAvailableNot specified
Real-time AudioYes · sub-90 ms model latencyNot specified
Voice CloningInstant and ProfessionalNot specified
Developer
3 specifications +
SpecificationCartesia SonicSecond model
SDK availabilitySDKs availableNot specified
API accessYesNot specified
Commercial UseIncluded on paid plansNot specified
Developer & Integration
1 specifications +
SpecificationCartesia SonicSecond model
API AccessYesNot specified
Commercial & Business
1 specifications +
SpecificationCartesia SonicSecond model
Commercial UseIncluded on paid plansNot specified
Pricing
3 specifications +
SpecificationCartesia SonicSecond model
Free Plan$0/month · ~27 TTS minutesNot specified
Pricing modelSubscription + usage creditsNot specified
Paid plansPro $5 · Startup $49 · Scale $299 · Enterprise customNot specified
Voice cloning
2 specifications +
SpecificationCartesia SonicSecond model
Voice cloning modesInstant; ProfessionalNot specified
Minimum cloning sample duration10 secondsNot specified
Performance
1 specifications +
SpecificationCartesia SonicSecond model
API latencySub-90 ms model latencyNot specified
Output
1 specifications +
SpecificationCartesia SonicSecond model
Streaming supportYesNot specified
Languages & Voices
1 specifications +
SpecificationCartesia SonicSecond model
Voice LibraryAvailableNot specified
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