Cartesia

Meet Cartesia

Cartesia provides speech models and developer tools for interactive voice applications. Sonic turns text into spoken audio, and Ink transcribes incoming speech. APIs let developers use those models as components of a service that listens and responds during a conversation.

Managed Agents handles more of building and operating the voice application, with configurable voices for uses such as customer service and localization. Cloud, on-premises, and on-device options depend on the service arrangement. A team can integrate speech generation into its own application or choose managed tooling for the agent's wider operation and deployment, including the transcription and responses that make up a call.