As with SpaceX, then, Mr Musk is gambling Tesla’s future on AI, and his belief that he can harness his existing businesses to dominate the technology. Plenty of doubters have scoffed at his grand ambitions before. But never has Mr Musk put so much on the line. ■

Elon Musk is joining his space exploration and artificial intelligence ventures into a single company before a massive planned initial public offering for the business later this year.

The two companies announced the deal on Monday in a statement on SpaceX’s website, saying the merger would form “the most ambitious, vertically-integrated innovation engine on (and off) Earth, with AI...

In the final moments of Tesla's earnings call, Elon Musk urged companies to stop ignoring geopolitical risks by relying on foreign battery production.