OpenAI updated the default model for ChatGPT to its new GPT-5.5 Instant, along with a new memory capability that finally shows which context shaped responses — at least some of them. This limitation ...
OpenAI has quietly made one of its biggest changes to ChatGPT since the chatbot launched in late 2022: every user who opens the app or website now gets GPT-5.5 Instant as the default model, replacing ...