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

An AI expert who requested anonymity told Ars Technica, "GPT-4.5 is a lemon!" when comparing its reported performance to its dramatically increased price, while frequent OpenAI critic Gary Marcus ...

OpenAI on Thursday introduced GPT-4.5, its latest and most advanced chat model, now available as a research preview. The company described GPT-4.5 as a significant step forward in scaling unsupervised ...

GPT-4.5 doesn't "think" like the company's state-of-the-art reasoning models, but in training the new model OpenAI made architectural enhancements and gave it access to more data and compute power.

In response, the inference model GPT-4o states, 'I'm sorry,' and lists ... as much computing power and data as possible and improve architecture and optimization. A comparison of the accuracy ...

When GPT-4.5 will actually drop is still up in the air. OpenAI’s apps aren’t fully ready to handle the new model yet, so don’t expect it to hit right away. To make things murkier, ...

OpenAI is rolling out an early version of a long-awaited new artificial intelligence (AI) model called GPT-4.5 to select users after hitting stumbling blocks in developing the AI system last year.