OpenAI releases GPT-5.3 Instant: less "cringe," fewer refusals, more hallucinations
Major update to ChatGPT's everyday model reduces unnecessary dead ends, caveats, and overly declarative phrasing. Cuts hallucinations by 26.8% with web access, 19.7% without. Replaces GPT-5.2 Instant (retiring June 3, 2026).
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