A quick glimpse of the ChatGPT subreddit (which is not affiliated with OpenAI) shows scathing reviews of GPT-5. Since the model began rolling out, the subreddit has filled with posts calling GPT-5 a "disaster," "horrible," and the "biggest piece of garbage even as a paid user."

The OpenAI CEO says some users miss ChatGPT's old overly supportive style, as the company rolls out GPT-5 with new personality modes.

Pro, GPT-5 mini, and GPT-5 nano—what the company calls its "best AI system yet," with availability for some of the models across all ChatGPT tiers, including free users. The new model family arrives with claims of reduced confabulations,