On the first full day of the second Trump presidency, Elon Musk was in the White House complex when he got word that his ...

Despite having rarely left the president’s side over the preceding few months, Musk was blindsided by the announcement, according to people familiar with the matter.

Sam Altman-run OpenAI on Saturday rejected billionaire Elon Musk’s offer to buy the nonprofit company for $97.4 billion.

OpenAI's board rejected a $97.4-billion bid by an Elon Musk-led investment group to buy the San Francisco startup. OpenAI's ...

Sam Altman-run OpenAI on Saturday rejected billionaire Elon Musk's offer to buy the nonprofit company for $97.4 billion.

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.

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