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OpenAI Updates ChatGPT Default Model with GPT-5.5 Instant

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OpenAI has updated ChatGPT's default model to GPT-5.5 Instant, offering smarter and more accurate responses. This upgrade aims to significantly reduce hallucinations and introduce improved personalization controls for users. The new model is now the default, enhancing the core user experience within ChatGPT.

Features (1) ›
  • GPT-5.5 Instant enhances ChatGPT's default model

    ChatGPT's default model is now GPT-5.5 Instant, featuring smarter and more accurate responses. The upgrade also aims to reduce hallucinations and provide enhanced personalization controls for users.

Read the original announcement →

https://openai.com/index/gpt-5-5-instant

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