GPT-5.6 Series is now live on CometAPI →
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GPT-Realtime-2

Input:$3.2/M
Output:$19.2/M
Released:Jul 14, 2026
GPT-Realtime-2 is our most capable realtime voice model. It supports speech-to-speech interactions with configurable reasoning effort, stronger instruction following, and more reliable tool use for complex voice-agent workflows.
New
Commercial Use