OpenAI reverses decision to replace GPT-4o with GPT-5 after backlash, restoring the beloved AI model for Plus users.

OpenAI’s latest version of its vaunted ChatGPT bot was supposed to be “PhD-level” smart. It was supposed to be the next great leap forward for a company that investors have poured billions of dollars ...

OpenAI needs to draw a clearer line between useful chatbot and emotional confidant, says Parmy Olson for Bloomberg Opinion.

Where recent iterations of ChatGPT allowed users to tinker with various settings, GPT-5 attempted to do the tinkering for the ...