Musk's announcement comes hours after xAI debuted its latest flagship AI model, Grok 4. The 54-year-old discussed the recent innovation during a nearly hour-long livestream shared on xAI's X page, during which he did not mention the chatbot's integration into Tesla vehicles.

Mr. Musk’s involvement in politics and his financial support for the president’s campaign were once seen by investors as a benefit to Tesla, fueling a steep rise in company shares after the election last year. That association has now turned into a liability. Tesla shares are down 40 percent from their peak in December.

Billionaire Elon Musk says he's forming a new political party after a spat with President Donald Trump. Just what does he need to do in Michigan?

Twitter/X CEO Linda Yaccarino lasted two years at her job before announcing her departure. Running an ad business for Elon Musk was an impossible job.

Linda Yaccarino resigns as CEO of X after two years. With at least 14 other top-level resignations across Musk’s companies, questions arise about leadership stability. A look at her exit and the growing list of high-profile departures from Tesla,

It takes years of corporate ladder-climbing to land a CEO gig, so when someone walks away in the middle of a firestorm, people notice. On Wednesday, July 9, Linda Yaccarino announced she's stepping down as CEO of Elon Musk's platform X (formerly Twitter) - just hours after its AI chatbot Grok went off the rails with a string of antisemitic posts.