A preview version of OpenAI’s o1 reasoning model achieved higher accuracy than hundreds of board-certified doctors in six diagnostic and management reasoning experiments, according to a *Science* ...

The Musk v. Altman trial tests whether OpenAI’s for‑profit shift was legal — a ruling that could reshape how AI labs raise ...

Elon Musk sued OpenAI, Sam Altman and Greg Brockman in 2024, claiming they reneged on their promise to keep the artificial ...

Sam Altman suggested it would be released more widely than a rival offering from Anthropic. Some are suggesting it’s because ...

OpenAI's newest model, ChatGPT 5.5, has finally "dropped the clipboard," says one user who's been missing ChatGPT 4o's ...

Discover how OpenAI's ChatGPT 5.5 outperforms Opus 4.7 in speed and token efficiency, despite Opus 4.7 retaining an edge in ...

In court, Musk argues OpenAI betrayed its nonprofit founding mission. He’s demanding more than $150 billion in financial ...

In a federal courtroom in California on Thursday, Elon Musk testified that his own AI startup, xAI, has used OpenAI’s models ...

While answering questions under oath, Musk argued it’s standard practice for AI labs to use their competitors’ models.

Researchers based at Harvard Medical School and Beth Israel Deaconess Medical Center found that an AI reasoning model, ...

OpenAI is preparing to launch a new frontier cybersecurity model, GPT-5.5-Cyber. CEO Sam Altman said the model will not be ...

OpenAI's most powerful model, GPT-5.5, is now running on Amazon Web Services for the first time. The launch comes one day ...