Cartesia
Builds real-time generative voice and multimodal AI models.
Company facts
- Founded
- 2023
- Employees
- 87
- Headquarters
- United States
- CEO
- Karan Goel
- Type
- Private
- Funding
- Series A · $100M · 2025
About
We are Cartesia, a company born out of the Stanford AI Lab with a mission to build the next generation of artificial intelligence. Our focus is on creating ubiquitous, interactive intelligence that can run anywhere you are, on any device. We believe that today's foundation models, while powerful, fall short of human intelligence. They are often slow, computationally expensive, and their development is restricted to only the largest companies. We're here to change that. We are pioneering a new path forward with State Space Models (SSMs), a groundbreaking architecture our founding team invented. This new approach allows for the creation of AI models that are not only higher quality but also significantly more efficient. Our journey began with a deep-seated belief that a phase shift was needed in how we approach model architectures and machine learning. SSMs are the result of that belief. Unlike traditional transformer models, SSMs can process information in real-time, handle long sequences of data, and operate with much lower latency and cost. This efficiency makes it possible to run powerful AI directly on devices, ensuring privacy and responsiveness. Our first major product, Sonic, is a testament to the power of SSMs. It's the world's fastest and most ultra-realistic text-to-speech model, capable of generating lifelike audio with incredibly low latency. We're not stopping at audio, though. Our long-term vision is to develop multimodal AI models that can seamlessly process and understand text, audio, video, and images, transforming industries from healthcare and robotics to gaming and beyond. We're driven by the challenge of building AI that is as natural and intuitive as human interaction, making it accessible and useful for everyone.