Amazon Nova 2 Sonic

Nova 2 Sonic remains an Active Bedrock speech-to-speech model alongside the later 2.5 release.

What the release provides

Its card lists a 1M-token context and 64K maximum output. It uses the bidirectional streaming API rather than the ordinary text conversation endpoint.Amazon Nova 2 Sonic Bedrock model card

How to use it well

Practical guidance. When migrating a voice application, compare turn-taking and tool requests as well as transcript quality. Keep the microphone pipeline, voice and task instructions fixed. A version change can affect a conversation even when the API surface stays similar.

Specifications & access

Amazon Nova 2 Sonic specifications
Detail	Value and conditions
Access	API
Model identifiers	`amazon.nova-2-sonic-v1:0`