Those who believe in Elon Musk are convinced both by his vision to go where no one has ventured before and his ability to pay for it—what some call the “Elon backstop”. Mr Musk’s announcement on February 2nd that he will merge SpaceX, which builds rockets and sells satellite broadband, with xAI, his artificial-intelligence lab, was not short of ambition. The world’s richest man declared that the new company would “extend the light of consciousness to the stars”. Back on Earth, however, it is getting harder to see how Mr Musk’s numbers add up.
The transaction values the new entity at $1.25trn; investors in SpaceX will be entitled to 80%, with the remainder going to xAI’s owners (Mr Musk holds a controlling stake in both). The stated rationale behind the tie-up is that the companies will work together to launch a fleet of data centres into space, giving xAI a big advantage in the race to develop cutting-edge models while furnishing SpaceX with a new line of business. More immediately, combining the two could further boost interest in a public listing expected this summer.
By bringing SpaceX and xAI together, however, Mr Musk is saddling a money-spinning space champion with a loss-making AI laggard. At the same time, he is reshaping Tesla, the carmaker he runs, into a “physical-AI company” focused on self-driving taxis and humanoid robots. If the latest wave of AI proves as transformative as some expect, these bold gambles might just pay off. If not, Mr Musk’s business empire could well be in jeopardy.
The fates of xAI, SpaceX and Tesla are increasingly intertwined https://t.co/UlUWKowPVk
— The Economist (@TheEconomist) February 4, 2026
