AI Overviews Cut Clicks 39.8% in the First Randomized Test (Paid Untouched)
A randomized field experiment of 1,065 US desktop users found that Google AI Overviews cut organic clicks by 39.8% and pushed zero-click searches up 34.5% when a summary appeared. Sponsored clicks barely moved. It is the first causal test of AI Overviews rather than another before-and-after correlation,
