🔍 Read the full analysis: A Closer Look At Google’s Global AI Search Ad Expansion on ThorstenMeyerAI.com
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TL;DR
Google said on October 28 that ads in AI Mode are expanding to 10 more countries, with U.S. ads also appearing in follow-up questions. The rollout gives existing Search, Shopping and Performance Max campaigns access automatically, while key details about ad performance, targeting and the effect on website traffic remain limited.
Google is expanding ads in its chat-style AI Mode to 10 additional countries and is beginning to show ads in U.S. follow-up questions, widening the role of advertising in answers generated by its AI search tools. The October 28 announcement comes as Alphabet reported 12% growth in Search and other revenue for the third quarter, down from 17% the previous quarter.
The new AI Mode 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. In the United States, ads can now appear not only in an initial AI Mode response but also in answers to follow-up questions, extending advertising into a longer search conversation.
Google’s announcement, attributed to Shashi Thakur, who leads its search advertising business, covers two related products: AI Overviews, which summarize information on regular search results pages, and AI Mode, a separate conversational search experience. The company says ads in AI-generated answers will carry a “Sponsored” label. It also says the ads do not affect the AI’s answer; that is Google’s stated position, and the source material reports no independent audit of the claim.
Google’s Ads Help information says existing Search, Shopping and Performance Max campaigns can participate automatically. Advertisers have no separate targeting control or opt-out for these placements, according to the supplied material. Reporting is aggregated, and Google generates short explanatory text alongside ads that advertisers cannot edit. Google also said AI Mode queries are, on average, three times longer than conventional searches. Its comparison of sponsored and organic product-list click-through rates refers to internal U.S. data from August 20 to September 3, 2026, rather than clicks through 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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Ads Follow Search Into AI Conversations
The change puts advertising inside a format where users may ask a question, receive a synthesized response and continue with follow-ups instead of opening several results. For Google, that creates more chances to show commercial results during a conversation. For advertisers, participation may happen through existing campaigns, but the lack of separate controls limits their ability to choose or tailor these placements, based on the account details described in Google’s help material.
It also matters to publishers whose business depends on visitors arriving from search. A working paper by Agarwal and Sen reports a randomized experiment involving 1,065 U.S. users: when AI Overviews appeared, clicks to websites fell by 39.8%, while clicks on ads showed no measurable change. That result is a finding from the study’s test, not proof of the effect across all searches or markets. Still, it points to a possible imbalance: users may click fewer publisher links even as advertising remains visible. The study’s reported comparison concerns the experiment; it does not establish the outcome of Google’s new international rollout.
For users, the practical distinction is between an AI-generated answer and a paid placement shown alongside or within it. Google says the label to look for is “Sponsored.” The precise presentation may matter as ads move into follow-up exchanges, where commercial material can appear in response to a question that feels like part of a continuing conversation.
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Search Revenue Meets AI Growth
Alphabet’s third-quarter release put Google Search and other revenue at $63.4 billion for July through September 2026. The reported growth rate was 12%, compared with 17% in the second quarter, 19% in the first quarter and 17% in the fourth quarter of 2025. Those figures show a slower annual growth rate; they do not, on their own, establish that the new ad placements will reverse it.
On the earnings call, chief business officer Philipp Schindler cited several influences on the quarter, including currency exchange rates, changes affecting some retail advertisers in Asia and normalized media and entertainment spending after a strong World Cup quarter. He also said that faster growth in AI Mode queries had an effect because monetization in AI Mode was lower. Google’s expansion of ads takes place against that revenue backdrop, although the company has not provided a forecast for how much the new placements will add.
Google has been introducing ads in these formats in stages. Ads in AI Overviews began on mobile in the United States in October 2024 and expanded to desktop in May 2025, when the company also began testing AI Mode ads. At Google Marketing Live in May 2026, Google described tests of formats including Conversational Discovery ads and Highlighted Answers. The October announcement extends the geographic reach and adds U.S. follow-up queries; it does not mean every AI response will contain an ad.
““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
Controls, Traffic Effects and Market Reach
Google has not supplied a public estimate of how much revenue the new placements may generate, or how the expansion will affect website referrals across the markets involved. The cited experiment on AI Overviews concerns 1,065 U.S. users; it cannot establish what will happen to publisher traffic when ads enter AI Mode in other countries or during follow-up exchanges.
Advertisers’ available controls and reporting are also limited in the account described by Google’s help information: campaigns may participate automatically, results are reported in aggregate, and advertisers cannot edit Google-generated ad explainers. The supplied source says Google’s help page lists 12 countries for ads inside AI answers and English-only availability as of October 29, 2026; it does not list Germany or other European Union markets. The specific language and availability arrangements for each newly added market, and the timing of the planned Brazil, Mexico and U.K. rollout, remain unsettled in the material provided.
Google says ads do not influence the AI’s answer, but the source material identifies no independent audit of that assertion. The company’s internal click-through comparison is also limited to sponsored and unpaid product listings inside AI Mode during a stated U.S. period. It does not answer whether users click more or less often to independent websites.
Watch for Rollout and Reporting Details
Google’s announced next step is to bring AI Mode ads to Brazil, Mexico and the United Kingdom in the fourth quarter of 2026. The timing and country-by-country availability will show how quickly the company carries the format beyond the initial group of 10 markets. Google has not stated in the supplied material when the expansion will reach Germany or other European Union countries.
Advertisers and publishers will be watching for clearer information on campaign controls, reporting and referral traffic as the rollout proceeds. Users can look for the “Sponsored” label when an ad appears beside an AI response. Further evidence will be needed to assess how ads perform in AI Mode, whether follow-up placements change user behavior and whether the format materially affects Google’s search advertising revenue.
Key Questions
Which countries are getting AI Mode ads?
Google named Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. It said Brazil, Mexico and the United Kingdom are planned for the fourth quarter of 2026.
What is new for U.S. users?
Ads can now appear in answers to follow-up questions in AI Mode, not only in response to an initial query. Google says ads in AI answers carry a “Sponsored” label.
Can advertisers opt out of these placements?
According to the Google Ads Help information described in the source, Search, Shopping and Performance Max campaigns may participate automatically, with no separate opt-out or targeting control for these placements.
Does the evidence show that AI search ads reduce website clicks?
Not conclusively for these new placements. A working-paper experiment with 1,065 U.S. users found that AI Overviews reduced website clicks by 39.8% when they appeared, while ad clicks showed no measurable change. That result does not establish the effect of AI Mode ads or the international rollout.
Are ads available in Germany or elsewhere in the EU?
The supplied source says Google’s help page did not list Germany or other EU markets for ads inside AI answers as of October 29, 2026. The material does not give a date for a European expansion.
Source: ThorstenMeyerAI.com
