Nick Heiner, Keri Wood
Bringing light to the GPT-4o vs. GPT-5 personality controversy
Nick Heiner, Keri Wood
GPT-5 was released on Aug 7, 2025. The swift removal of all legacy models from the ChatGPT UI was met with an even swifter backlash: some people online felt that GPT-4o was more personable, human, and engaging, whereas GPT-5 was stiff and robotic. This viral meme encapsulated the faction’s thesis: