In a surprise twist, paid subscribers can once again use several older AI models, including GPT-4o, GPT-4.1, and o3. GPT-4o ...

GPT-5 was supposed to get rid of all the complicated AI models to choose from in ChatGPT, but that's not how it's panned out.

In March, OpenAI published research exploring the emotional bonds users form with its models. In the conclusion of the ...