YouTube says more than 140 million people used its AI answer tool in June, but the company still has not said what number that growth is measured against. Emily Moxley, who leads product management for YouTube’s viewer-facing AI features, told the Made on YouTube audience that Ask YouTube usage climbed more than 500 percent since December. For an industry tracking how generative answer surfaces reroute traffic away from ranked results, the claim arrives with the growth rate intact and the baseline missing.
The 140 million figure is not new. Sundar Pichai gave it on Alphabet’s Q2 2026 call with investors, telling analysts that Ask YouTube had drawn more than 140 million people to its watch-page surface during June 2026. What Moxley added at the September 23 event, reported in a Creator Insider segment published September 25, 2026, was the comparison point: growth of “over 500%” since December.
YouTube has not published the December number behind that comparison, and it has not said what activity qualifies someone as a user. Pichai spoke of “engagement,” Moxley used the word “people,” and the video’s own description called them “viewers.” None of the three specifies whether the count is a monthly unique figure, a session count, or something else entirely.
Ask YouTube is also two separate products, and the growth figure covers only one of them. The watch-page tool, which answers questions tied to whatever video is currently on screen, is the surface behind the 140 million figure. A second version lives in the search bar and, as of July 6, 2026, reached only signed-in United States desktop viewers aged 13 and older running English-language queries, with mobile and other markets still pending. YouTube has not split usage between the two surfaces, so the 500 percent figure describes growth on the watch page alone, not the tool as a whole.
That watch-page surface also changed considerably between December and June. It expanded to smart TVs and game consoles in the first quarter of 2026, and Google added a dedicated Ask button on health videos in March. Moxley credited the growth to a custom Gemini model without mentioning that the same six-month window brought the feature to additional devices and a larger pool of potential viewers, which leaves open how much of the increase reflects better answers versus wider placement.
The comparison is worth setting against how Google typically reports growth in its own generative answer product. AI Overviews disclosures usually separate query coverage from ranking or click impact, giving analysts two variables to test independently. YouTube’s disclosure compresses reach and adoption into one percentage, which makes the figure harder to use as a leading indicator of anything beyond attention to the feature.
PPC Land, which first reported the segment, noted that YouTube has disclosed neither its counting method nor a device-level breakdown, and one commenter under the video asked directly how many of the 140 million were bots. The company also has not confirmed whether the custom model Moxley described is the same “agentic video understanding” system Google said on September 1 would power Ask YouTube’s watch-page answers in the coming months.
A shopping extension for Ask YouTube, detailed in a separate blog post the same week, will add product comparison tables to responses. Both headline figures predate that feature. Teams that model how AI answer tools divert attention from creator videos should treat the 500 percent figure as a distribution story as much as an adoption one, and should hold off building forecasts until YouTube publishes a defined user count or a device-level breakdown.
Reporting by Luis Rijo for PPC Land, published September 27, 2026.
