Google AI Mode boosts search volume but lowers ad monetisation rates

Alphabet reported that search queries are growing at their fastest pace in five years, yet this volume surge is not translating into proportional revenue growth for Google’s core advertising business.reported The company’s third-quarter earnings data revealed a divergence between user engagement and financial returns, with search revenue growth slowing to 12 per cent year on year.reportedGoogle says more people are searching than ever before, but the company is making less money from each search because AI answers change how ads work.Alphabet’s Q3 earnings reveal a decoupling of search query volume growth from revenue growth, driven by lower monetisation rates in AI Mode interactions.

The figures

Alphabet stated that search revenue growth stood at 12 per cent year on year in the third quarter, down from approximately 17 per cent in the preceding quarter.reported Growth in paid clicks, which generate revenue for Google, slowed from 13 per cent to 8 per cent during the same period.reported The company plans to spend about $200 billion this year on infrastructure, largely to support artificial intelligence initiatives.reported Since reporting these earnings, Alphabet shares have fallen about 14 per cent, reflecting investor concern over costs and returns.reported

Behind the figures

Chief Business Officer Philipp Schindler attributed the revenue-growth slowdown primarily to currency effects and changes in advertiser spending across specific industries. He also noted that AI Mode queries were growing strongly but monetising at a lower rate than traditional searches, according to the published report Schindler added that Google feels positive about its trajectory and that its ad experiments have shown promising results.reported Nate Elliott, an eMarketer principal analyst, described the situation as the first major disruption to Google’s core business in decades.

What changes, what does not

The nature of search interactions is shifting as AI Overviews add generated summaries to results and AI Mode turns searching into a conversation, according to the report.reported However, commercial intent remains intact for certain queries; Andy Taylor, vice president of research at Tinuiti, noted that users searching for specific products like Nikes still receive familiar shopping listings and text ads. Schindler argued that most AI Mode queries are incremental, representing additional questions rather than replacements for existing searches.

What builders can do with it

Developers and product builders can observe that AI-driven search interfaces are altering user behaviour without necessarily displacing commercial transactions. The data suggests that while AI Mode generates significant incremental query volume, the monetisation efficiency of these interactions remains lower than traditional search models. Builders integrating AI into search or discovery tools should account for the possibility that conversational AI interfaces may drive higher engagement metrics while yielding lower immediate advertising revenue per interaction. This implies a need to balance user experience enhancements with sustainable monetisation strategies in AI-enhanced search products.