GPT-Realtime-2.1 mini changelog

Every change to GPT-Realtime-2.1 mini that Modelpeers has recorded, newest first, each with the source it came from. The record starts Jul 6, 2026.

July 2026

GPT-Realtime-2.1 and GPT-Realtime-2.1 mini released

OpenAI released GPT-Realtime-2.1, an updated realtime reasoning model with better alphanumeric recognition, silence and noise handling, and interruption behavior, plus a faster, lower-cost GPT-Realtime-2.1 mini.

Who is affected:
Developers building realtime voice apps on the API.
What to do:
Test GPT-Realtime-2.1 against your current realtime model.

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