You have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load.Humane released the $699 Ai Pin in April.Credit...Andri Tambunan for The New York Times‘This Is Going to Be Painful’: How a Bold A.I. Device FloppedHumane’s Ai Pin was supposed to free people from smartphones, but sales have been slow. Now Humane is talking to HP and others about a potential sale.Humane released the $699 Ai Pin in April.Credit...Andri Tambu...