Tesla's profit fell 61% in the fourth quarter as it struggles to maintain its lead in the electric vehicle market. The company announced a $2 billion investment in Elon Musk's AI firm xAI, despite mixed reactions from shareholders. Additionally, Tesla will stop producing the Model S and Model X to repurpose their factory space for making Optimus robots.

Elon Musk announced that Tesla shareholders will soon vote on a proposal to invest in his artificial-intelligence startup, xAI. He expressed his desire for Tesla to have made this investment earlier and is now seeking shareholder approval through a vote.