GPT-5.5 Instant: smarter, clearer, and more personalized
OpenAI Blog · 2026-05-05
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Topics: gpt-5-5openai-model-releasehallucination-reductionpersonalizationchatgpt
Claims
- GPT-5.5 Instant replaces the previous ChatGPT default model.
- GPT-5.5 Instant delivers smarter and more accurate answers than its predecessor.
- GPT-5.5 Instant features reduced hallucinations compared to the previous default model.
- GPT-5.5 Instant includes improved personalization controls for users.
Key quotes
GPT-5.5 Instant updates ChatGPT's default model with smarter, more accurate answers, reduced hallucinations, and improved personalization controls.