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

The relationship between Elon Musk and Sam Altman progressed from an initial friendship to a bitter rivalry. Here's why.

OpenAI, led by CEO Sam Altman, is backing an initiative known ... then Twitter, that Trump called White supremacists at the deadly Charlottesville rally "good people." Chris Lehane, who serves ...

That point was clear this week when the president welcomed OpenAI Chief Executive Sam Altman to the White House on the second day of Trump 2.0—a visit that left “First Buddy” Musk publicly ...

Then Mr. Altman sneaked into the White House. By Cecilia Kang and Cade Metz Reporting from Washington At President Trump’s inauguration, Sam Altman, the chief executive of OpenAI, was relegated ...

"Trump represents an unprecedented threat to America," Altman wrote in 2016. The day after President Donald Trump returned to office, Sam Altman, the CEO of tech giant OpenAI, stood behind the ...