OpenAI has just released GPT-4.5, a new version of its flagship large language model. The company claims it is its biggest ...

ChatGPT Plus has new features like Deep Research and GPT-4.5 access but they're limited - here's how to figure out what you ...

This small paragraph hides a more concerning truth than OpenAI would have you believe. The O1 model family, including ...

“its performance is below that of o1, o3-mini, and deep research on most preparedness evaluations.” As of this Thursday, anyone with a ChatGPT Pro subscription can select GPT‑4.5 in the ...

Artificial intelligence powerhouse OpenAI announced its latest chat model Thursday, starting a limited roll out of GPT-4.5, which OpenAI chief Sam Altman called a “giant” and “expensive ...

On Wednesday morning, 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.

At 37.1%, GPT-4.5's hallucination rate compares with the 61.8% shown by GPT-4o and 44% shown by its o1 reasoning model. GPT-4.5 supports file and image uploads and can also work on writing and ...

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. GPT-4.5 will have ...