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Cartesia

Ultra-fast voice AI on state-space models

AI·Series B·San Francisco, California·cartesia.ai

Cartesia is an AI company founded by a team of Stanford researchers, specializing in real-time, multimodal AI using state space models (SSMs). Their mission is to create interactive AI that operates on any device, focusing on real-time intelligence across various modalities, including text, audio, video, images, and time-series data. The company is backed by investors like Kleiner Perkins and emphasizes low-latency infrastructure for enterprise applications, ensuring compliance with SOC-2 and HIPAA standards.

Cartesia's flagship product, Sonic, is a real-time text-to-speech (TTS) API designed for ultra-low-latency voice generation. It features impressive capabilities such as voice cloning, support for multiple languages, and expressive audio options like AI laughter and emotion. Sonic is deployed through a web playground, API, and on-device support, making it suitable for a wide range of applications, including customer support, healthcare, media, gaming, and enterprise automation. With a growing customer base, Sonic is proven to deliver consistent performance globally.