Google announced on Wednesday (October 28) that it is bringing ads integrated into its AI-powered search experience to international markets — a strategic move to offset the slowing growth of its core search advertising business. The announcement came during Alphabet's third-quarter earnings call, which reported $127.6 billion in revenue, a 25% year-over-year increase but below the $128.2 billion market expectation.
The push for advertising in AI-powered search tools had been under testing in the United States for months, but the global expansion marks an inflection point in Google's monetization strategy. Philipp Schindler, Google's chief business officer, explained that the company is now "scaling high-quality ads within AI overviews in AI mode to more users and queries." For the first time, Google's AI search monetization footprint will go global, including the rollout of multi-turn ads in AI mode.
Early data suggests the format is working. According to Schindler, click-through rates for sponsored product listings in AI Mode are already comparable to those for organic listings. Google's user research also indicates that consumers find the ads relevant. This is particularly important: if users are clicking on sponsored results at the same rate as organic ones, Google's monetization model can sustain itself even as the search interface becomes increasingly dominated by AI-generated responses.
But the macroeconomic backdrop is concerning. Google Search revenue grew only 12% in Q3 2026, down from 17% in Q2 and 19% in Q1. The slowdown was even more pronounced in specific segments. According to Tinuiti data, click growth for Google text ads fell to just 4% in Q3, while cost-per-click (CPC) rose 4% year-over-year. For US Shopping ads, growth reached only 14%, down from 18% in Q2. The result was that Search revenue — $63.35 billion — fell short of analysts' estimate of $64.96 billion, and Alphabet shares dropped 8% in after-hours trading.
The expansion of AI ads is Google's counter-narrative to convince investors that the transition from traditional keyword-based search to an AI-powered conversational experience won't destroy its revenue model. The investment is ambitious: since May, the company has been introducing conversational ad formats powered by Gemini, including sponsored recommendations integrated directly into AI-generated answers. In Q3 2026, Gemini models helped generate over 1.5 billion campaign assets for advertisers, a sevenfold increase year-over-year.
Google's move fits into a broader trend in digital advertising. WPP has already forecast that AI-powered search advertising will become the fastest-growing channel in the industry, with Google dominating approximately 60% of global AI ad spend. Platforms like ChatGPT are also entering this space — ChatGPT ads are now available in 89 countries — but Google has a structural advantage: search is the starting point of most online purchase journeys, and whoever controls the top of the funnel controls the value.
The question that remains is whether AI-integrated ads are sufficient to compensate for the erosion of the traditional keyword search model. If users start getting direct answers without needing to click through to links, revenue per query will tend to decline — even if sponsored ad conversion rates are strong. Google is betting that the conversational experience, with multi-turn ads and contextual recommendations, can generate more value per session than a traditional results page. But the slowdown in click growth and rising CPCs show that advertisers are becoming more cautious. The next quarter will reveal whether the bet on AI ads can sustain the revenue that organic search still generates — or whether the transition to an era of instant answers will require a complete reinvention of Google's business model.
Sources: TechCrunch, eMarketer, CNBC
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