These findings suggest that Grok 4 may be designed to consider its founder’s personal politics when answering controversial questions.

Elon Musk on Thursday unveiled Grok 4, the latest AI model from xAI, his multibillion-dollar initiative to rival OpenAI and Google.

The Anti-Defamation League, which works to combat antisemitism, called out Grok’s behavior. “What we are seeing from Grok LLM right now is irresponsible, dangerous and antisemitic, plain and simple,”...

X CEO Linda Yaccarino announced her resignation from Elon Musk’s social-media company. That doesn’t directly impact Tesla stock, but it doesn’t make things any easier for CEO Musk. And it’s yet another thing for often-overwhelmed Tesla shareholders to think about.

Linda Yaccarino, the boss of Elon Musk's social media site X, has announced she is stepping down.

Ms. Yaccarino’s exit caps a tumultuous period at X, which was previously called Twitter and has been remade in Mr. Musk’s image since he bought the platform for $44 billion in 2022.

“Third parties are good for me; I don’t know about Republicans, but for me [it’s good].”

President Donald Trump on Wednesday named Transportation Secretary Sean Duffy as the interim leader of NASA after a previous nomination fell through, rupturing the relationship between Elon Musk and t...