Sonic is a blazing fast, lifelike generative voice API (🚀 135ms model latency). Build high quality, real time voice experiences with a diverse voice library, instant voice cloning, voice mixing, and voice design with speed and emotion control.
Sonic is the fastest human-like voice API.
Sonic is a blazing fast, lifelike generative voice API (🚀 135ms model latency). Build high quality, real time voice experiences with a diverse voice library, instant voice cloning, voice mixing, and voice design with speed and emotion control.
Hi all! I'm Brandon, cofounder of Cartesia! We’re thrilled to be sharing our work on Sonic, the fastest human-like voice API. As a company, we’re obsessed with making intelligence faster, cheaper, and more accessible for everyone. And we believe that we need fundamentally new AI architectures to get there. We founded Cartesia to build long-lived real-time intelligence for every device, starting with a kernel of architectural innovation: state space models. My cofounders Karan, Albert, and Chris
Nice job. It might be valuable to offer a pay as you go option as well as subscription plans? Many people like to try and test before they dive in to something new?
Sonic is incredible! I cannot remember the last time that I was this impressed by a product. The Cartesia team is clearly onto something here. Highly recommend to everyone looking for ultra-realistic generative voice technology
congrats on the launch. with sonic's diverse voice library, how do you ensure inclusion and diversity in the voice options available? what challenges did you face in implementing this?
Congratulations ! your low latency is amazing. When do you expect to release a model for Spanish ?
The scores reflect launch-period engagement. Historical data is preserved and doesn't change retroactively. The build date at the bottom shows when the index was last refreshed.
Check the similar products section on this page, or browse the category pages linked in the tags above. Each category page shows all products for a given year, sorted by engagement.
A measure of community engagement at launch. Higher means more people noticed and interacted with the product. It's a traction signal, not a quality rating.
Discussion threads divided by interest score. Above 0.30 is strong. Below 0.15 suggests the product got clicks but not conversation.