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Cartesia is a realtime voice AI platform that provides production focused speech models and voice agents for businesses and developers. Its Sonic product delivers fast and lifelike text to speech with realistic voice synthesis for interactive applications, voice assistants, customer service, and phone based automation. Its Ink product provides streaming speech to text designed for fast and accurate transcription. Cartesia also offers Managed Agents, a platform for building and deploying customizable AI voice agents that can answer and make telephone calls. Managed Agents are advertised at 0.03 dollars per minute. The platform supports speech in 44 languages and is designed for live conversations where response speed and natural interaction are important. Features include voice agent development, voice cloning, voice conversion, text to speech APIs, speech to text APIs, voice generation, dubbing, and integrations for developers. Cartesia states that its models are ranked highly in speech and speech to text evaluations by Artificial Analysis. Its technology is based on state space model research, including Mamba and H Nets, which are intended to support low latency processing at scale. Cartesia supports cloud deployment through regional API endpoints as well as on premise and on device deployment. These options can help organizations manage data residency, compliance, latency, availability, and infrastructure requirements across industries such as financial services, healthcare, retail, telecommunications, travel, and customer support.
