Introducing Amazon Nova 2 Sonic: Our new speech-to-speech model for conversational AI

Today, we are announcing the general availability of Amazon Nova 2 Sonic, a speech-to-speech foundation model that brings natural, real-time voice conversations to your applications. The model delivers industry-leading conversational quality, pricing, and best-in-class speech understanding for developers to build voice applications.

Amazon has been a leader in voice-based technology for over a decade, and earlier this year, we introduced the first generation of Nova Sonic to solve the fundamental challenge of creating truly fluid voice interactions—preserving the acoustic context to adapt the speech response to not just to what the user said but how they said it. With Nova 2 Sonic, we have built on that foundation by making the model more capable and more accessible improving model intelligence and agentic capabilities, expanding language support, and adding a broad range of new features to provide more intuitive, human-like voice interactions.

Nova 2 Sonic delivers expressive voices, masculine and ...