OpenAI starts rolling out GPT-5.3 Instant in ChatGPT as default everyday model

OpenAI starts rolling out GPT-5.3 Instant in ChatGPT as default everyday model EdTech Innovation Hub

Early report Updated Mar 6, 2026, 12:04 AM UTC

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Early report surfaced from Auto search: model 8h ago.

First seen Mar 6, 2026, 12:04 AM UTC Latest source Mar 6, 2026, 12:04 AM UTC

Update 1 8h ago

Auto search: model •published Mar 6, 2026, 12:04 AM UTC •fetched Mar 6, 2026, 6:07 AM UTC