OpenAI Just Upgraded ChatGPT's Default Model—Here's What GPT-5.5 Instant Actually Does
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OpenAI Just Upgraded ChatGPT's Default Model—Here's What GPT-5.5 Instant Actually Does

May 5, 2026
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Posted 3 hours ago by

GPT-5.5 Instant is now the default ChatGPT model. It makes fewer things up, answers more concisely, and finally remembers what you told it last week.

OpenAI Just Upgraded ChatGPT's Default Model—Here's What GPT-5.5 Instant Actually Does
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Coverage and analysis from United States of America. All insights are generated by our AI narrative analysis engine.

United States of America
Bias: center

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