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.
Benchmark results
| Benchmark | Score | Tags | Source |
|---|---|---|---|
| BFCL | 74.5% | self-reported llm-stats | link → |
| Big Bench Audio | 87.0% | self-reported llm-stats | link → |
| ComplexFuncBench | 65.2% | self-reported llm-stats | link → |
| IFBench | 37.5% | self-reported llm-stats | link → |