The Endeavor CEO was enlisted to join investors who put in an unsolicited offer to buy OpenAI's majority share of its for-profit arm.

The two tech titans are in the meanest fight in business. The stakes couldn’t be higher.

Musk is suing Altman and OpenAI because the company allegedly diverged from its nonprofit founding principles.

One of the most striking things about Sam Altman’s new blog post is how confidently he talks about AI’s potential to reshape ...

After helping President Trump get elected, Elon Musk was poised to dominate the country’s A.I. policies. Then Mr. Altman ...