In brief OpenAI’s update now lets paid users switch GPT-5 between speed-first, deep-think, or auto-select modes. Previously retired GPT-4o, GPT-4.1, o3 and others return to the roster, alongside the Pro-only GPT-4.5. The new setup turns ChatGPT into a model-and-mode buffet, letting users match AI brains to the job at hand. When GPT-5 launched last week,...
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