Nova 2 Sonic

Amazon Nova 2 Sonic is Amazon's second-generation speech-to-speech foundation model for real-time conversational AI. It delivers expressive, native-sounding voices and high streaming speech-understanding accuracy across English, French, Italian, German, Spanish, Hindi, and Portuguese, surpassing GPT-Realtime and Gemini 2.5 Flash Live on conversational quality in human evaluations. It supports asynchronous tool calling, configurable turn-taking, and seamless switching between voice and text modalities for low-latency interactions.