
OpenAI announces GPT-4.5, warns it’s not a frontier AI model
OpenAI is launching GPT-4.5 today, its newest and largest AI language model. GPT-4.5 will be available as a research preview for Pro users to start. OpenAI is calling the release its “most knowledgeable model yet,” but it’s warning that GPT-4.5 is not a frontier model and might not perform as well as o1 or o3-mini….