How often does Google show an AI Overview? The published figures, with what each measured
Fourteen pages that say what they counted when they print how often Google shows an AI Overview, and seven that print a figure without a unit, relay one, or give none, read on 25 September 2026. Each with its sample, query type, country, device and window, because a share of keywords, a share of prompts and a share of searches people made are three different things, and the post ranks none of them. Pew's 18%, March 2025, is historical.
18%
The share of 68,879 unique Google searches, made by 900 US adults in Pew Research Center's browsing panel from 1 to 31 March 2025, that produced an AI summary, in Pew's analysis of 22 July 2025, historical. Of the pages we read on 25 September 2026, it is the only figure whose page says it counted searches people actually made. Every other figure in the tables either counts a list of keywords or prompts its publisher chose or does not say what it counted, and none converts into this one.