As with many AI enthusiasts, ChatGPT's fans have developed intense attachments to the "personalities" exhibited by each of the company's large language models (LLMs) — and as such, many were in a state of panic when the decision to switch between models like GPT-4o,

Altman and other OpenAI leaders took questions on Reddit on Friday, a day after the announcement of the new GPT-5 model. A quick glance through the comments revealed how many users preferred how older models like GPT-4.1, GPT-4.5 and 4o handled writing and other tasks. Some said the other models seemed more friendly and conversational than GPT-5.