OpenAI has replaced GPT-4o with GPT-5.5 Instant as the default model in ChatGPT, claiming a 52.5% reduction in hallucinations on sensitive topics and expanded cross-session memory. The update affects ...
OpenAI updated the default model for ChatGPT to its new GPT-5.5 Instant, along with a new memory capability that finally shows which context shaped responses — at least some of them. This limitation ...
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OpenAI swaps ChatGPT’s default to GPT-5.5 Instant — 52% fewer hallucinations and it remembers your past chats
OpenAI has quietly made one of its biggest changes to ChatGPT since the chatbot launched in late 2022: every user who opens the app or website now gets GPT-5.5 Instant as the default model, replacing ...
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