GPT-5.5 Instant: smarter, clearer, and more personalized
OpenAI Blog / 5/5/2026
📰 NewsTools & Practical UsageModels & Research
Key Points
- GPT-5.5 Instant is being used to update ChatGPT’s default model to deliver smarter and more accurate responses.
- The update aims to reduce hallucinations and improve answer reliability.
- It also introduces improved personalization controls, enabling more tailored interactions.
- The changes focus on overall quality improvements rather than adding a new product or feature category.
GPT-5.5 Instant updates ChatGPT’s default model with smarter, more accurate answers, reduced hallucinations, and improved personalization controls.
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