GPT 4.5 is available to the ChatGPT Pro subscribers and developers on all paid tiers. Plus, and Team users will have access next week, followed by Education and Enterprise access.

GPT-4.5 could arrive as soon as next week, as Microsoft gets ready to host OpenAI’s latest models.

Sam Altman’s OpenAI released GPT-4.5, an upgraded version of the artificial intelligence model that powers ChatGPT, to select users on Thursday.

OpenAI has officially introduced GPT-4.5, a new iteration of its AI model aimed at making conversations more natural, reducing errors, and improving overall user experience. While the improvements are clear,

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 ChatGPT Pro users to start. OpenAI is calling the release its “most knowledgeable model yet,” but initially warned that GPT-4.5 is not a frontier model and might not perform as well as o1 or o3-mini.