Google Expands AI Search Ads Globally Amidst Slowing Core Search Growth: What Alphabet's Q3 2026 Report Reveals

Alphabet announced on Wednesday, October 28, the global expansion of ads within its AI-powered Search experiences, AI Overviews and AI Mode, as Google Search advertising growth slowed to 12% in Q3 2026. This strategic move includes introducing new multi-turn ads and AI Mode ads in the U.S., building on Google's May 2026 announcement of Gemini-powered ad formats. For broader context, explore our Top 100 AI Tools.

Alphabet's Q3 2026 Financial Performance

Alphabet reported a total quarterly revenue of $127.6 billion for Q3 2026, marking a 25% increase year-over-year. Despite this overall growth, the company's shares experienced an approximate 8% decline following the announcement of its Q3 2026 earnings results. A key factor in this market reaction was the slowdown in Google Search advertising growth. For broader context, explore our AI Tools Pricing.

Google Search advertising growth reached 12% year-over-year in Q3 2026. This represents a notable decrease from the 17% growth observed in Q2 and 19% in Q1 of the same year, indicating a trend of decelerating growth in this core segment.

In contrast, other segments of Alphabet's business demonstrated strong performance. Google Cloud revenue surged by 103% to $30.7 billion, while Google Services revenue reached $96.3 billion, an 11% increase.

Global Expansion of AI-Powered Search Ads

The primary focus of Google's latest announcement is the international rollout of ads within its AI Overviews and AI Mode features. This expansion aims to integrate advertising more deeply into the evolving landscape of AI-driven search experiences. The company has also introduced new multi-turn ad formats and expanded AI Mode ads specifically within the U.S. market.

This initiative follows previous expansions of Google's AI-powered search experience, which began expanding globally to over 120 countries and territories in November 2023. Google's AI Mode itself expanded globally to 180 new countries in English in August 2025, having previously been available only in select regions.

Insights into AI Mode Performance

Philipp Schindler, Alphabet's Chief Business Officer, provided insights into the performance of sponsored product listings within AI Mode. He stated that the click-through rates for these sponsored listings are comparable to those of organic listings, suggesting effective integration of ads within the AI-generated results.

Further data on AI Mode usage reveals distinct user behavior patterns. Queries made through AI Mode are, on average, three times longer than traditional search queries. Additionally, one in five AI Mode searches incorporates multimodal inputs, such as voice, images, or documents, indicating a shift towards more complex and diverse search interactions.

Strategic Implications for Advertisers

The global expansion of AI Search ads and the introduction of new ad formats signal Google's strategy to monetize its advanced AI capabilities in search. For advertisers, this means new opportunities to reach users within AI Overviews and AI Mode, particularly given the reported comparable click-through rates for sponsored listings.

The longer query lengths and multimodal nature of AI Mode searches suggest that advertisers may need to adapt their strategies to target more specific, complex, and context-rich user intents. Understanding these evolving search behaviors will be crucial for optimizing ad performance in Google's AI-powered environment.

Conclusion

Alphabet's Q3 2026 earnings report highlights a strategic pivot towards monetizing AI-powered search experiences globally, even as growth in traditional search advertising moderates. The expansion of ads in AI Overviews and AI Mode, coupled with insights into user engagement, underscores Google's commitment to integrating AI into its core business model. Advertisers should monitor these developments closely to adapt their strategies for the evolving search landscape.

Sources

• Google expands AI Search ads globally as core ad growth slows | TechCrunch
• Google brings ads to AI Overviews as it expands AI's role in search | TechCrunch
• Google's AI-powered search experience expands globally to 120+ countries and territories | TechCrunch
• Google's AI Mode expands globally, adds new agentic features | TechCrunch
• Google is bringing ads to AI Mode | TechCrunch