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GPT-5.5 Instant: smarter, clearer, and more personalized
May 5, 2026
GPT-5.5 Instant updates ChatGPT’s default model with smarter, more accurate answers, reduced hallucinations, and improved personalization controls. The notable change is that it aims to make responses both more reliable and more tailored to users, which should affect the default ChatGPT experience directly.
GPT-5.5 Instant updates ChatGPT’s default model with smarter, more accurate answers, reduced hallucinations, and improved personalization controls.
Source: openai.com