Yann LeCun, an artificial intelligence pioneer who runs a research lab at Meta Platforms Inc., plans to say he will depart the social media giant and start a new company, according to people familiar with his plans. LeCun, who has been at Meta since 2013, will make the announcement as soon as this week, said one of the people, who declined to be named discussing private plans. Meta plans to partner with LeCun on his startup, though details are still being finalized, according to a person familia...