Google’s latest earnings reveal that the company’s hallmark search ad engine is feeling the drag of its own AI ambitions.
Key points
- Google’s search ad growth slowed to 12 % YoY in Q3 2026, the lowest rate since Q2.
- Lower ad density in AI Overviews and AI Mode is a key driver of the slowdown.
- Google plans to increase AI‑related ad inventory, including multiturn ads in the US.
- Advertisers are uneasy about higher costs for lower‑quality clicks, while analysts note that overall search query volume remains robust.
Alphabet reported that year‑over‑year growth in search advertising revenue fell to 12 % in the third quarter, down from a 17 % rise in the previous quarter, according to the company’s earnings release.
During the investor call, chief business officer Philipp Schindler cited a mix of factors for the slowdown, including foreign‑exchange headwinds, the loss of Europe’s customs‑duty exemption, and, notably, "the lower monetization we were seeing in AI Mode," where fewer ads appear in AI‑generated Overviews and AI Mode results.
AI integration and ad performance
To counter the dip, Google said it will broaden the placement of AI Overview ads and introduce multiturn ads for AI Mode queries in the United States, aiming to boost inventory without compromising user experience.
Some advertisers have pushed back. Max Anderson, CEO of OnlyFinder, warned on social media that Google’s tactics—charging more for lower‑quality clicks and for terms not explicitly targeted—appear short‑sighted and hostile to customers.
Advertiser concerns and Google’s response
Analysts offered mixed interpretations. Eric Seufert of Mobile Dev Memo highlighted that the earnings release noted the highest search‑query growth rate in five years, suggesting usage remains strong. Meanwhile, Nate Elliott, principal AI analyst at eMarketer, described AI as a double‑edged sword: it adds a new layer to search behavior, but if rival AI tools become preferred for discovery, Google’s ad model could face a structural threat.
Reader questions
Why did Google’s search ad revenue growth decelerate in Q3 2026?
The company pointed to a combination of foreign‑exchange effects, the removal of a European customs‑duty exemption, and reduced monetization in AI‑driven search formats such as AI Overviews and AI Mode.
What is Google doing to address the lower monetization in AI Mode?
Google said it will expand the distribution of AI Overview ads and roll out multiturn ads for AI Mode queries in the United States to increase ad inventory.
Are advertisers supportive of Google’s new AI ad strategies?
Some advertisers, like OnlyFinder’s CEO Max Anderson, have criticized the approach, arguing that higher charges for lower‑quality clicks could be detrimental to their campaigns.
Source: theregister.com
