Insiders believe the sudden exit of the top executive stems from months of combativeness between the two. 'He put her on notice last year,' a source reportedly said.

Grok is coming to Tesla vehicles very soon. Next week at the latest,” the CEO wrote in response to a Tesla investor.

Elon Musk debuted Grok 4, saying it was capable of reasoning at "superhuman" levels and is "better than PhD level at ...