Rest assured, GPT-5 is launching today. When it's available, the ChatGPT homepage should have a message introducing the new model, which reads: "Introducing GPT-5: ChatGPT now has our smartest, fastest, most useful model yet, with thinking built in - so you get the best answer, every time."

OpenAI claims GPT-5 is smarter, faster, more useful, and more accurate, with a lower hallucination rate than previous models. In characteristically lofty terms, Altman likened the leap from GPT-4 to GPT-5 to the iPhone’s shift from pixelated to a Retina display.