ChatGPT Voice now lets you pick any model, including GPT-6 Astra

SIGKITTEN · x · 2026-09-10

OpenAI has updated how intelligence works in ChatGPT Voice: you can now select any model and effort level you like—including GPT-5.6 Sol or GPT-6 Astra if you're on Pro—and voice will use it when it needs to search or reason.

Building on this, MacStories' Federico Viticci shares a practical tip: share MacStories' "Apple's Surprise and Shine Event: By the Numbers" article with ChatGPT, enable Voice mode, and ask any question about the event's tech specs and numbers—a surprisingly fun way to catch up on the announcements.

Related event: ChatGPT Voice Gains Model Selection, Including GPT-5.6 Sol and GPT-6 Astra for Pro(5 posts)→

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