Yann LeCun's comments renew a long-running spat with Musk and cast doubt over valuations of some of the world's biggest AI companies.

Elon Musk's xAI is a "failure" that will be unable to compete on the frontier of artificial intelligence, Yann LeCun, founder of AMI Labs, told CNBC, as he laid out his view on what could cause a "bi… [+3623 chars]

Originally published by CNBC