The AI gold rush that has seen billions of dollars poured into startups might already be slowing down. Two AI chatbots are laying off workers, as the field for startups grows crowded, businesses begin to demonstrate they don’t all survive as standalone products, and investors grow impatient for impact on revenue. Plus, shares of AT&T are near their lowest in 30 years as analysts try to gauge potential financial liability following a report on toxic lead cables. It comes on top of repeated downward revisions for its wireless and fiber growth, and a slowdown in subscriber growth.