Pew Research Center — 18% of Google searches in March 2025 produced an AI summary (68,879 searches across 900 US adults; independent anchor)

Summary

Claim: Pew Research Center (Athena Chapekis), analysing the browsing data of 900 US adults across 68,879 Google searches: "Some 18% of all the Google searches in our study generated an AI summary as part of the search results."

Source: https://pewresearch.org/short-reads/2025/07/22/ — Jul 22, 2025.

Confidence: Verified (independent research org; no commercial incentive).

Why this matters for Candid: This is the anchor figure for AI-overview prevalence and the cleanest defence against vendor-inflated numbers. Use Pew as the level estimate; cite vendor trackers as the range (R6 — Cite Pew as the AI-prevalence anchor; cite vendor trackers (Semrush / BrightEdge / Conductor) as a range; never cite a single vendor as the level).