Altman and Musk were OpenAI’s founding co-chairs in 2015, but their relationship has devolved into name-calling and lawsuits.

Elon Musk has taken on a new role as the First Buddy: monitoring the progress on the long-awaited revamped Air Force One jets. The new Air Force One planes, made by Boeing, are currently $2.7 billion ...

Whatever billionaire Elon Musk's intentions were when he thrust his arm out at an upward angle during U.S. President Donald Trump's inauguration Monday, a lot of people aren't having it. And they're ...