In Musk v. Altman, the company sought to show the jury a remarkable trophy as physical proof of Elon Musk’s concerning behavior.

Without ChatGPT's drug-related advice, Sam Nelson would be alive today, a new lawsuit argues.

A combination photo shows CEO of OpenAI Sam Altman (L) on April 28, 2026 and Elon Musk on April 29, 2026 during the trial in Elon Musk’...

For the first time, Anthropic has more verified business customers than OpenAI, according to this month’s AI Index from the fintech firm Ram...

In federal court on Tuesday, OpenAI CEO Sam Altman testified about his leadership and pushed back against claims made by co-founder Elon Mus...

Musk’s lawyers questioned Altman over allegations of deception and his network of financial investments, but the OpenAI CEO painted a pictur...

Landmark trial could shape future and leadership of OpenAI as company prepares for possible initial public offering.

The trial pits two of tech's most famous personalities against each other and could lead to seismic changes for the maker of ChatGPT.

OpenAI's CEO recalls a "particularly hair-raising" conversation with the SpaceX founder.

OpenAI Chief Executive Officer Sam Altman hit back at Elon Musk’s claims that he “stole” OpenAI the charity and steered it away from its non...

The cases seek to use consumer product safety laws to rein in chatbot companies.

A Texas couple is filing a lawsuit accusing the AI company of guiding their teenage son in using drugs, resulting in a fatal overdose.

OpenAI has launched a security program designed to help cyberdefense teams respond to threats sooner.The company’s Daybreak initiative, a...

OpenAI seems to be trying for a much less scary vibe than Anthropic's.

The letter comes amid a high-stakes legal battle between one-time partners Sam Altman and Elon Musk, who in 2015 co-founded the AI company b...