🔍 Read the full analysis: Google’s AI Search Ads Go Global: What Changes For Advertisers? on ThorstenMeyerAI.com
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TL;DR
Google said on October 28 that ads in its chat-style AI Mode are expanding to 10 more countries and that US users may see ads in follow-up queries. Existing Search, Shopping and Performance Max campaigns participate automatically, while Google’s latest results showed Search & other revenue growth slowing to 12% in the third quarter. The effect on advertiser performance, publisher traffic and the separation between ads and AI answers remains uncertain.
Google is expanding ads in its AI Mode search experience to 10 more countries and adding ads to follow-up questions in the United States, extending advertising into longer, conversational searches. The October 28 announcement matters to advertisers because existing Search, Shopping and Performance Max campaigns are included automatically, with no separate opt-out, according to Google Ads Help.
The new markets are Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. Google said Brazil, Mexico and the United Kingdom are planned for the fourth quarter of 2026. The rollout concerns ads in AI Mode, a chat-style search product, and is separate from ads in AI Overviews, the AI summaries shown within standard search results.
In the United States, Google is introducing what it calls multiturn ads: an ad can appear in an answer to a follow-up question, not just in response to the initial query. Google says ads in AI answers will carry a “Sponsored” label. Its advertising help information says existing Search, Shopping and Performance Max campaigns participate automatically; advertisers cannot separately target these placements or opt out. Reporting is aggregated, and Google-generated short explainers shown alongside ads cannot be edited by advertisers.
Google also said AI Mode queries are, on average, three times longer than traditional searches, and that click-through rates for sponsored product items are similar to those for unpaid product listings in AI Mode. The company’s comparison is based on its internal US data from August 20 to September 3, 2026. It compares sponsored and organic product-list items within AI Mode, not clicks to external websites.
Infographic 01 · From test to global
The answer now carries the ad, in more places.
How Google moved ads into its AI answers in two years, where they show today, and the revenue pressure behind the move.
Where ads appear inside AI answers
Per Google’s help page and the 28 Oct post. The list “may not be exhaustive”.
Follow-up questions (“multiturn ads”): US only. Germany and the rest of the EU: not listed. Ads above or below AI Overviews can show wherever AI Overviews exist (200+ countries and territories).
Why now: Google Search & other revenue growth
Year over year, as reported by Alphabet. Bars scaled to 19%.
Q2 to Q3 2026: about +0.1%. Same months a year earlier: about +4.4% (my arithmetic). Google names exchange rates as the largest driver of the slowdown, and the “lower monetization” of AI Mode as one factor.
- 3 Oct 2024Ads inside AI Overviews go liveUS, mobile, after months of testing
- 21 May 2025Desktop in the US; first tests in AI ModeEnglish-speaking countries announced for later in 2025
- 20 May 2026New formats in testingConversational Discovery ads and Highlighted Answers, both with a Gemini-written “AI explainer”
- 28 Oct 2026AI Mode ads in 10 more countriesPlus “multiturn ads” in follow-up questions in the US; labeled “Sponsored”
- Q4 2026Planned: Brazil, Mexico, United Kingdom“Additional locales, including” these three
Sources: Google, 28 Oct 2026; Google Ads Help, accessed 29 Oct 2026; Google, 3 Oct 2024; Google, 21 May 2025; Google, 20 May 2026; Alphabet Q3 2026 release and the Q4 2025, Q1 2026 and Q2 2026 releases. “3× longer” is Google’s AI Mode report (US, May 2026). Quarter-on-quarter changes and bar scaling: Thorsten Meyer.
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What Changes for Search Advertisers
The expansion puts ads into more of the conversational search process. A person asking how to fix a problem may receive an AI-generated explanation and then continue with follow-up questions; an ad can now appear during that exchange in the United States. For advertisers, the change creates additional placements, but the automatic participation and aggregate reporting limit control over where a campaign appears and how its performance is separated out.
The announcement also comes as Google’s core search business reported slower year-over-year growth. Alphabet said Search & other revenue rose 12% to $63.4 billion in the July-to-September quarter, compared with 17% growth in the preceding quarter. Chief business officer Philipp Schindler cited exchange rates as the largest factor and also pointed to lower monetization of fast-growing AI Mode searches. That gives Google a business reason to develop ads in AI experiences, but it does not establish how much revenue the new formats will produce.
Publishers have a separate concern: if an AI answer satisfies a search without a website visit, traffic may fall even if ads continue to attract clicks. A 2026 working paper by Agarwal and Sen reported that, in a randomized experiment with 1,065 US users, AI Overviews reduced clicks to websites by 39.8% when they appeared, while clicks on ads showed no measurable change. This result concerns AI Overviews in that experiment; it is not a direct measurement of the new AI Mode ads or a forecast for every publisher.
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From AI Summaries to Chat Ads
Google has introduced advertising into AI search in stages. Ads in AI Overviews began appearing for US mobile users in October 2024. In May 2025, Google extended them to desktop and began testing ads in AI Mode. At Google Marketing Live in May 2026, it began testing formats including Conversational Discovery ads, where Gemini creates ad text tailored to a question, and Highlighted Answers, in which an ad may appear within AI recommendations.
The October announcement adds more countries and extends US advertising into follow-up turns. Google’s example describes someone asking why a swimming pool has turned green, receiving steps to address the problem, and seeing an offer for a pool vacuum within the answer. The example illustrates the placement; it does not establish how frequently users will encounter it or how well it performs.
Search growth is also part of the financial backdrop. Alphabet reported that Search & other revenue grew 17% in the fourth quarter of 2025, 19% in the first quarter of 2026 and 17% in the second quarter, before the 12% rate in the third. Schindler said exchange rates were the single largest driver of the latest slowdown and cited other factors, including changes affecting some Asian retail advertisers and normalized media and entertainment spending after a strong World Cup quarter. He also said the lower monetization of AI Mode searches had an impact.
““The strong growth in AI Mode queries had an impact because of the lower monetization we were seeing in AI mode.””
— Philipp Schindler, Alphabet chief business officer, on the company’s third-quarter earnings call
Performance and Label Clarity
Google has not provided, in the cited announcement and help information, a detailed breakdown of expected advertiser costs, conversion results or performance by country for the expanded placements. Because campaign participation is automatic and reporting is aggregated, it is not clear how easily advertisers will be able to isolate the effects of ads in AI Mode from other campaign activity.
Google says advertising does not influence the AI-generated answer, but the supplied material contains no independent audit verifying that claim. The “Sponsored” label is Google’s stated policy; how visible it is in every layout, and how users distinguish paid placements from the answer itself, remains unverified here. The cited working-paper result on website clicks is limited to an experiment involving AI Overviews and should not be treated as a measured outcome of the new AI Mode rollout.
Availability also varies by market. Google’s help information, as of October 29, lists 12 countries for ads in AI answers and says the feature is English-only. Germany and other European Union markets are not listed. The company has named Brazil, Mexico and the UK for the fourth quarter, but the precise launch dates and wider language availability are not specified in the source material.
Markets and Campaign Data Ahead
Google’s stated next geographic step is to bring the ads to Brazil, Mexico and the United Kingdom during the fourth quarter of 2026. Advertisers and publishers will be watching for market-by-market availability, clearer reporting on these placements and evidence about whether they change clicks, conversions or website referrals.
Alphabet’s next earnings update should offer another view of Search & other revenue and management’s account of AI Mode monetization. Until Google publishes more detailed performance information or independent studies measure the new ad placements directly, the financial and traffic effects of the expansion remain unsettled.
Key Questions
Where is Google expanding AI Mode ads?
Google named Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. Brazil, Mexico and the United Kingdom are planned for the fourth quarter of 2026.
Will advertisers need to opt in?
No separate opt-in is described. According to Google Ads Help, existing Search, Shopping and Performance Max campaigns participate automatically, and advertisers cannot separately target or opt out of these placements.
Can ads appear after the first AI Mode question?
Yes. Google is introducing multiturn ads in the United States, allowing ads to appear in responses to follow-up questions as well as the initial query.
How does Google say users can identify ads?
Google says ads in AI answers will be marked “Sponsored.” The supplied material does not include an independent audit of how clearly users recognize the label or whether ads affect the AI-generated answer.
Are the new ads available in Germany or elsewhere in the EU?
Google’s help information, as of October 29, 2026, does not list Germany or other European Union markets among the countries with ads in AI answers. It lists 12 countries and says the feature is English-only.
Source: ThorstenMeyerAI.com
