But it could be the last release in OpenAI's classic LLM lineup.

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 ...

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

OpenAI's next major AI model, GPT-4.5, is highly persuasive, according to the results of OpenAI's internal benchmark ...

OpenAI researchers said the new model was the company’s “best chat model yet,” citing an improved knowledge base and better ...

ChatGPT is getting even smarter. OpenAI has unveiled its latest model, GPT-4.5. The new model is already available to ChatGPT ...

GPT-4.5 is a bridge to the GPT-5 initiative, not a reasoning model itself. OpenAI said its answers more convincingly engage ...

ChatGPT developer OpenAI said on Thursday it has released a research preview of its latest GPT-4.5 model for its Pro users ...

After GPT-4.5, subsequent models updates will incorporate OpenAI's o-series reasoning capabilities into one simplified ...

OpenAI rolled out a research preview of GPT-4.5, it's "largest and most knowledgeable model yet," on Thursday.

OpenAI is launching GPT-4.5 today, its newest and largest AI language model. GPT-4.5 will be available as a research preview ...

The unexpected shortage 'isn't how we want to operate,' says CEO Sam Altman, but OpenAI presses ahead with the launch of a ...