"Cartesia’s voice API power dynamic and empathetic conversational experiences that are consistently dependable. What really stands out to me is how natural and considerate the responses feel—especially the empathetic tone in statements like ‘I’m sorry, that must be frustrating.’"

Sami Ghoche, CEO of Forethought

"Communication in healthcare relies on countless forms of complex phone-based interactions—from appointment scheduling and benefits verification to following up on claim denials. We wanted a text-to-speech solution that's both natural and context aware in order to optimize our solution for every common workflow. Cartesia has delivered this, helping our best-in-class voice AI agents automate tedious phone calls across various use cases on behalf of the healthcare organizations we serve."

Sam Schwager, CEO and Co-Founder of SuperDial

"In 1999, Salesforce brought software to the cloud. In 2025, 11x is killing software as we know it and unleashing the era of digital workers. To realise this vision, we needed AI voice technology that feels truly human. Cartesia’s technology gives our AI digital workers reps the speed, reliability, and natural expressiveness required to engage customers at scale.

It's the only solution fit for our relentless drive toward innovation.”

Keith Fearon, Head of Product & Growth, 11x