GPT-5.3 Instant Rolls Out to All Users — and OpenAI Teases 5.4 Hours Later
OpenAI shipped GPT-5.3 Instant to all ChatGPT users on Tuesday with claims of fewer hallucinations and a less stilted tone, then immediately teased GPT-5.4 with a one-line post: "sooner than you Think." The release cadence is now measured in weeks, not months.
OpenAI began rolling out GPT-5.3 Instant to all ChatGPT users on Tuesday, billing the update as "more accurate, less cringe," as the company posted. The model reportedly reduces hallucination rates to 26.8% when using web search, improves synthesis of web results, and adopts a more natural conversational tone with fewer refusals. @cgtwts and @AILeaksAndNews both noted the emphasis on usability over raw capability — a shift that suggests OpenAI is increasingly focused on the subjective experience of using ChatGPT rather than benchmark performance alone.
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