Despite having rarely left the president’s side over the preceding few months, Musk was blindsided by the announcement, ...

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

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

Elon Musk and Sam Altman lead rival AI firms and now take public jabs at each other — but it wasn't always like this. Years ago, the two cofounded OpenAI, which Altman now leads. Musk departed ...