Nova 2 Sonic

by Amazon

Nova 2 Sonic is a model from Amazon, released on December 2, 2025. It has a 1M-token context window and can generate up to 66K output tokens. API pricing is $0.33 per 1M input tokens and $2.75 per 1M output tokens. It ranks #158 of 220 models by Intelligence Score with a score of 9.

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.

Key specs

ProviderAmazon
Release date2025-12-02
Licenseproprietary
Context window1M tokens
Max output66K tokens
Input price$0.33 / 1M tokens
Output price$2.75 / 1M tokens
Intelligence Score9

Quick answers

What is the context window of Nova 2 Sonic?

Nova 2 Sonic has a context window of 1M tokens, with a maximum output of 66K tokens per response.

How much does Nova 2 Sonic cost?

Nova 2 Sonic costs $0.33 per 1M input tokens and $2.75 per 1M output tokens through the API.

Is Nova 2 Sonic open source?

No. Nova 2 Sonic is a proprietary model from Amazon (proprietary license).

When was Nova 2 Sonic released?

Amazon released Nova 2 Sonic on December 2, 2025.

How does Nova 2 Sonic compare to Claude Opus 5.5 (Reasoning)?

Nova 2 Sonic scores 9 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1. Input pricing is $0.33 vs $4 per 1M tokens.

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