Amazon Nova Sonic

AWS released Amazon Nova Sonic, a speech-to-speech foundation model for voice agents, alongside AgentCore Runtime, a serverless hosting environment with WebSocket streaming and microVM isolation. The framework supports three integration patterns: direct tool calls via AgentCore Gateway using Model Context Protocol (MCP), sub-agent delegation with Agent-to-Agent (A2A) protocol, and session segmentation for multi-step workflows.

AWS has integrated WebRTC protocol support with Amazon Nova Sonic, its speech-to-speech model, through Amazon Kinesis Video Streams. The integration delivers real-time voice streaming with sub-second latency and includes adaptive bitrate control, forward error correction, and Voice Activity Detection for mobile and IoT applications.