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

The Sam Altman-founded crypto startup World is in talks to sign a new office lease at Mission Rock's Building B.

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

OpenAI CEO Sam Altman speaks as he attends at the Kakao media day with Kakao CEO Shina Chung in ... [+] Seoul, South Korea, Tuesday, Feb. 4, 2025. The offer from Musk—who co-founded OpenAI with ...