The AI Pivot: Google's Race to Monetize the New Search Funnel

For years, the Google search-to-click funnel was the most reliable revenue engine in tech. But the numbers from Alphabet's third-quarter earnings call, as first reported by TechCrunch, suggest that engine is losing steam. While Alphabet reported total revenue of $127.6 billion—a 25% year-over-year increase—the core search advertising business is showing a clear pattern of deceleration.

According to TechCrunch, Google Search revenue growth has slid from 19% in the first quarter to 17% in the second, and finally to 12% in the third quarter. This downward trend triggered an 8% drop in Alphabet shares following the results. From a markets perspective, the pressure is now on Google to prove that its generative AI features can evolve from expensive technical experiments into meaningful profit centers.

In response, Google is aggressively expanding its AI-powered ad footprint. Philipp Schindler, Google’s chief business officer, announced during the investor call that the company is scaling high-quality ads within AI overviews to more users and queries. Crucially, this includes taking the monetization footprint global for the first time, expanding ads in AI mode into international markets and introducing multi-turn ads in the U.S.

Google is attempting to redefine the value proposition of a search query. CEO Sundar Pichai told investors that Search queries are growing at their fastest year-over-year rate in five years, though he declined to provide the specific percentage. Pichai noted that AI is fundamentally altering user behavior; queries in AI Mode are, on average, three times longer than traditional searches. Furthermore, one in five AI Mode searches globally now incorporates documents, images, or voice, and visual searches have surpassed 50 billion per month.

To capture this shift, Google is deploying Gemini-powered formats, including sponsored recommendations integrated into AI-generated answers and conversational discovery ads. Schindler claims these formats are already gaining traction, noting that click-through rates for sponsored product listings in AI Mode are comparable to those of organic listings.

While Alphabet's Google Services division (which includes Search) generated $96.3 billion in revenue—an 11% increase year-over-year—the massive 103% surge in Google Cloud revenue to $30.7 billion highlights a diversifying revenue stream. However, for a company built on the search click, the pivot to AI ads isn't just a feature update; it is a necessary evolution to offset the slowing growth of the traditional search model.