Amazon Nova 2.5 Sonic

amazon/nova-2.5-sonic

General availability speech-to-speech model for real-time voice agents with improved reasoning, instruction following, and tool calling.

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Context window: 262K
Input: Audio · Text
Output: Audio · Text
Released: 2026-10-05

Weights: Closed
Capabilities: Reasoning, Tool call

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ModelRegistry · Catalog updated 2026-10-09