
Cartesia helps developers and businesses create real-time, multimodal intelligence applications such as voice generation and on-device AI models. It provides a platform with tools like Sonic API and On-Device models, featuring capabilities for voice changing, voice cloning, and text-to-speech, optimized for speed and realism.
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Get startedSonic-3 is perfect for businesses needing fast, natural-sounding voice AI for agents across industries like healthcare and gaming. Companies like Cartesia, Poe, and Line use Sonic for real-time, low-latency conversations in 40+ languages.
Cartesia offers flexible pricing starting with a Free plan providing 20K credits and $1 prepaid for agents, ideal for personal use. Paid plans range from Pro at $4/month with 100K credits and $5 prepaid agents for commercial use, up to Scale at $239/month with 8M credits, $299 prepaid agents, priority support, and high concurrency for large businesses. Enterprise plans offer custom pricing, concurrency, and enhanced security features tailored for mission-critical applications.
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With Sonic-3, sign up and connect your application via the well-documented API or SDK to start generating natural-sounding voice interactions. Basic setup involves selecting voices and languages, which can be done solo within minutes.