🔍 Read the full analysis: Google Moves AI Search Ads Into More Markets 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 additional countries, with more markets planned, and that US users will see ads in follow-up questions. Existing Search, Shopping and Performance Max campaigns participate automatically, according to Google Ads Help. The move comes as Google Search advertising growth slowed to 12% in the third quarter; the effect on website traffic and users’ ability to distinguish ads from answers remains under scrutiny.
Google is expanding ads in AI Mode to 10 more countries and introducing them in US follow-up questions, extending advertising into more parts of its conversational search experience. Announced October 28, the changes matter to advertisers whose campaigns may appear beside AI responses, and to users and publishers as Google develops a search format that can answer questions without requiring a click to a website.
The new AI Mode markets are Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. Google said it plans to add Brazil, Mexico and the United Kingdom in the fourth quarter of 2026. In the United States, ads can now appear in responses to follow-up questions, not only earlier in an AI Mode conversation, according to the company’s October 28 announcement.
Google describes AI Mode as a chat-style search experience, distinct from AI Overviews, the generated summaries shown within standard search results. The company has also placed ads in AI Overviews. Google says ads in AI answers carry a “Sponsored” label, and says advertising does not influence the AI-generated answer. That separation is Google’s stated policy; the source material identifies no independent audit of whether it holds in practice.
Google Ads Help says advertisers do not need to create a separate campaign to take part: existing Search, Shopping and Performance Max campaigns may serve in these placements automatically. Advertisers have no separate targeting option or opt-out for the AI placements, the help page says. Reporting is provided in aggregate, and Google’s AI may write short explanations beside ads that advertisers cannot edit. These details could affect how businesses control and evaluate where their ads appear.
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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AI Answers Become More Valuable Ad Space
The expansion gives Google more opportunities to earn advertising revenue from conversations that may otherwise end within its own search experience. The company says AI Mode queries are three times longer, on average, than classic searches, offering more information about what a user wants. Google also says click-through rates for sponsored and unpaid product-list items in AI Mode were similar. The comparison is based on Google’s internal US data from August 20 to September 3, 2026; it compares product listings within AI Mode, not clicks to outside websites.
The revenue backdrop adds weight to the rollout. Alphabet reported $63.4 billion in revenue from Google Search & other for July through September, up 12% year over year. That was slower growth than the 17% recorded in the previous quarter. On Alphabet’s earnings call, Chief Business Officer Philipp Schindler cited exchange rates as the largest factor affecting growth and also said that AI Mode’s fast-growing queries had lower monetization. The figures do not establish that the new placements will make up the difference, but they show why improving revenue from AI search matters to Google.
For publishers, the central issue is whether answers reduce visits to outside sites while ads continue to attract clicks. A 2026 working paper by Agarwal and Sen reports that, in a randomized experiment involving 1,065 US users, AI Overviews reduced clicks to websites by 39.8% when shown, while clicks on ads showed no measurable change. This is a study of AI Overviews, not a direct measurement of the newly expanded AI Mode placements, so its findings should not be treated as a forecast of this rollout’s effects.
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From US Tests to International Rollout
Google’s rollout has proceeded in stages. Ads in AI Overviews went live for US mobile users in October 2024, according to the company’s published timeline. In May 2025, Google brought those ads to desktop and began testing placements in AI Mode. At Google Marketing Live in May 2026, it introduced tests of formats including Conversational Discovery ads, which generate ad text tailored to a question, and “Highlighted Answers,” where an ad can appear within an AI recommendation list.
The October announcement extends that development from tests and earlier placements to more markets and additional moments in a US conversation. Google’s claims about longer queries and comparable product-list click-through rates are company-reported measures, not independent evidence that the format works equally well for advertisers, publishers and users. The available country list for ads in AI answers names 12 markets and English-language availability; Germany and other EU countries are not listed as of October 29, 2026.
““Ads will be clearly labeled as ‘Sponsored.’””
— Shashi Thakur, who leads Google’s search ads, in Google’s October 28 announcement
Traffic Effects and Ad Separation
The available information does not show how the new AI Mode placements will affect clicks to publishers’ websites, advertising costs or advertiser sales. Google’s reported click-through comparison concerns sponsored and unpaid product listings within AI Mode, rather than traffic sent to external websites. The cited working paper examines AI Overviews and cannot, by itself, establish the effect of ads in AI Mode or follow-up answers.
It is also unclear whether users will consistently distinguish an ad from an AI-generated recommendation. Google says ads will be labeled “Sponsored” and will not affect the generated answer, but the material provides no independent audit of that separation. Advertisers also have limited placement-level control under the described system: campaigns participate automatically, and reporting is aggregate. The announcement does not specify when or whether Google will offer more detailed reporting, targeting controls or an opt-out.
More Markets and Performance Data
Google has said it plans to bring ads in AI Mode to Brazil, Mexico and the United Kingdom in the fourth quarter of 2026. The company’s published list does not include Germany or other EU countries as of October 29. Whether those markets will be added, and on what timetable, has not been stated in the material available for this report.
The next useful evidence will be data on the rollout’s performance: how often ads appear in AI answers, what users click, and whether publisher referrals change as the format spreads. Google’s October announcement provides its own early comparison for product-list click-through rates but does not answer those broader questions. Advertisers, publishers and users will have to watch both the market expansion and any additional reporting Google publishes.
Key Questions
Where is Google expanding ads in AI Mode?
Google announced expansion to Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. It plans to add Brazil, Mexico and the United Kingdom in the fourth quarter of 2026.
What changes for US users?
Google says ads can now appear in follow-up questions in AI Mode, so an ad may be shown later in a conversation as well as in response to an earlier query.
Can advertisers opt out of these AI placements?
Google Ads Help says existing Search, Shopping and Performance Max campaigns may serve in AI placements automatically, with no separate opt-out or targeting option for those placements. Reporting is aggregate, according to the help material.
How does Google say users can identify an ad?
Google says ads in AI answers carry a “Sponsored” label. The company also says ads do not influence the AI answer, but the source material identifies no independent audit of that claim.
Does the announcement show that AI search ads reduce publisher traffic?
No. A cited 2026 working paper found fewer website clicks when AI Overviews appeared in an experiment, but it did not measure the effect of this AI Mode expansion. The rollout’s effect on publisher traffic remains unclear.
Source: ThorstenMeyerAI.com
