Nearly 1,000 scientists from multiple U.S. National Laboratories gathered Friday to test artificial intelligence (AI) models from leading firms like OpenAI and Anthropic in an effort to harness ...

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

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

OpenAI does say that 4.5 is its “most knowledgeable model yet.” It also requires massive amounts of compute. CEO Sam Altman says it’s “a giant, expensive model.” As a result, it’s only launching to ...

OpenAI researchers expect GPT-4.5 to represent a big a jump in capabilities from its existing top-of-the-line GPT model.

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

In one of his first actions as president, Donald Trump revoked a sweeping executive order from the Biden era that sought to ...

OpenAI said that GPT-4.5 has been trained on data derived from smaller models, enhancing its steerability and ability to ...

OpenAI's CEO Sam Altman described GPT-4.5 as a “giant, expensive model” and noted GPU shortages as a key challenge in the ...

Unlike OpenAI, which has gradually moved toward a closed model, DeepSeek allows developers to tinker with its architecture, ...

As announced by OpenAI, ChatGPT Plus ($20-per-month) and ChatGPT Pro ($200-per-month) users in the UK and EU can now log into ...

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