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."

Within a day of its debut on Thursday, social media, particularly Reddit, saw a surge of critical posts, with several saying the next-generation ChatGPT failed to meet expectations.