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 launch of OpenAI's GPT-5 was met with criticism from users unhappy about the discontinuation of older models, particularly GPT-4o. Despite claims of enhanced capabilities, users reported GPT-5 has less personality.

In a social media post this week, Sam Altman seemed to suggest that GPT-5 will be the AI model powering OpenAI's first hardware.