Google's Core Ad Revenue Growth Slows in Q3 Even as AI Search Drives Higher Query Volume
TLDR
Google's core ad revenue growth slowed in Q3 even though query volume rose, driven by AI features.
Optimixed Overview
Optimixed's original report on this story.
Marketing Dive reports that the rate of ad revenue growth for Google's core business decelerated in the third quarter, despite a jump in query volume that the outlet attributes to AI features in search.
How we got here
On July 22, Google reported that its Q2 2026 search ad revenue rose 14.5% to $81.6 billion, with AI Overviews and AI Mode adoption noted in the results. On October 28, Google reported Q3 search ad revenue up 10.5% to $82 billion, said search revenue growth had slowed for a second consecutive quarter, and named lower AI Mode monetization as one factor. Then, on October 29, Alphabet said ads in AI Mode would reach 10 more markets, while advertisers still could not see AI Mode pricing because no paid click or CPC data was available. Now, Google's core ad revenue growth has slowed in Q3 even though query volume rose, driven by AI features.
Summary of earlier coverage
- Oct 29Alphabet's Q3 ad revenue rises 10.5% as AI Mode ads expand to 10 more markets
Alphabet's Q3 ad revenue rose 10.5% to about $82 billion, and Google said ads in AI Mode will reach 10 more markets.
- Oct 29Google Search Revenue Growth Slows to 12% in Q2 as YouTube Ads Slow to 9%
Google Search revenue growth slowed to 12% in Q2 from 17%, YouTube ads slowed to 9%, and advertisers still cannot see AI Mode pricing because no paid click or CPC data is available.
- Oct 28Google Search Revenue Growth Slows for a Second Straight Quarter
Google said Search revenue growth slowed for a second consecutive quarter, citing lower AI Mode monetization as one reason.
- Jul 26Google's Q2 Ad Revenue Surges 17%, But AI Investment Costs Spark Investor Concerns
Google's search ad revenue jumped 17% in Q2, but investors remain uneasy about the company's mounting AI expenditures and their impact on profitability.