OpenAI and Microsoft have long had a partnership regarding how the two entities do business with one another.

A new scale of humiliation ritual kicked off this week as Elon Musk’s lawsuit against OpenAI went to trial in Silicon Valley. The Tesla CEO, who co-founded OpenAI, is suing the artificial intelligence firm and two of its other co-founders,

In his second day on the stand in the trial he launched against OpenAI, Elon Musk said the AI start-up he'd helped found had strayed from its charitable mission.

Musk kept his cool, and OpenAI’s lawyer bulldozed him with piercing questions about his motivations for suing the company.

The DoW announced agreements with seven leading artificial intelligence companies to deploy their capabilities on classified networks.

OpenAI announced GPT-5.5, its latest AI model that is better at coding, using computers and pursuing deeper research capabilities. The launch comes just weeks after Anthropic unveiled Claude Mythos Preview,

The announcement of GPT-5.5-Cyber follows Anthropic’s debut of its own Mythos AI, which the company said has already uncovered thousands of cyber vulnerabilities.

On Thursday, researchers published in Science the results of a study that tested an OpenAI model on diagnostic and clinical reasoning tasks.