Cartesia Sonic
Advanced text-to-speech for voice agents with natural emotion and speed
About Cartesia Sonic
Cartesia Sonic delivers ultra-low latency text-to-speech with breakthrough naturalness, supporting 40+ languages and real-time conversational AI. Built for developers and enterprises, it offers context-aware accuracy, instant voice cloning, and seamless integration.
Pricing
Full pricing pageFree
Get introduced to ultra-low latency voice AI through core models and your own voice agent
- 20K credits for models
- $1 prepaid for agents
- Personal use
- Discord support
Pro
Upgrade for instant voice cloning and to try voice AI in production for commercial use
- 100K credits for models
- $5 prepaid for agents
- Instant voice cloning
- Commercial Use
Startup
For teams starting to use voice AI in production and need shared API keys, pro voice cloning, and multiple agents
- 1.25M credits for models
- $49 prepaid for agents
- Pro voice cloning
- Organizations
Scale
For businesses with large-scale use cases requiring high concurrencies and multiple agents
- 8M credits for models
- $299 prepaid for agents
- Priority support
- High concurrency limits
Enterprise
Custom supported models and agents with mission-critical guarantees for uptime, security, and compliance
- Custom usage pricing
- Custom concurrency
- Enterprise support via slack
- Enterprise-grade security & compliance
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