Big companies are pulling back from using AI for anything and everything as costs go up. Amazon became the latest tech giant to admit that maybe all AI all the time is not the best idea.  The retail giant has reportedly shut down its employee-led AI leaderboard (known as Kirorank), an internal mechanism the company used to encourage employees to use AI more often.  According to a report by the Financial Times , Amazon's decision was based on two factors. The first was cost. More companies are using more AI; the additional usage, measured in tokens , is causing prices to skyrocket. The second reason is due to employees engaging in a practice known as tokenmaxxing, where they make AI do menial tasks to increase token usage so that they score better on the leaderboard.…