OpenAI CEO Sam Altman has announced that GPT-4.5 will "likely" begin rolling out to ChatGPT Plus subscribers "over a few days" rather than all at once. You'll just have to continue being patient.

OpenAI has just released GPT-4.5, a new version of its flagship large language model. The company claims it is its biggest and best model for all-round chat yet. “It’s really a step forward for us,” says Mia Glaese, a research scientist at OpenAI.

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.

PT: Hours after GPT-4.5's release, OpenAI removed a line from the AI model's white paper that said "GPT-4.5 is not a frontier AI model."

Internally called Orion, GPT-4.5 is OpenAI’s largest model to date, and it’s first available through the company’s $200 monthly ChatGPT subscription.

OpenAI announced via an X post that it began rolling out GPT-4.5 to ChatGPT Plus users. When first announced, OpenAI shared that the full rollout could take one to three hours. However, just an hour later,

Shortly after OpenAI released GPT 4.5 last week, I saw examples posted on social media of the chatbot waxing poetic describing "a day in the life" for a variety of people. The results were so entertaining,

Following yesterday’s announcement that ChatGPT-4.5 would be rolling out from today, and over the next few days, I was pretty pleased to find it had appeared in my model selector in ChatGPT Plus, however the model selector now looks like a complete mess.