During Tesla 's ( TSLA -3.39%) fourth-quarter earnings call last week, Elon Musk got investors amped after the entrepreneur ...

After the arrival of a less costly A.I. model from China, U.S. markets and academics are wrestling with the ultimate economic ...

For years, Elon Musk has talked about Dojo — the AI supercomputer that will be the cornerstone of Tesla’s AI ambitions. It’s ...

Musk, who also runs SpaceX and a number of other companies, has been known to make big often exaggerated promises. For ...