🔍 Read the full analysis: Google Brings Ads To AI Search On A Global Scale on ThorstenMeyerAI.com
TL;DR
Google said on October 28 that ads in its AI Mode search experience are expanding to 10 more countries, with ads also appearing in U.S. follow-up queries. The move comes as Search & other revenue growth slowed to 12% in the third quarter; the effects on publisher traffic and the separation of advertising from AI answers remain points to watch.
Google is expanding ads in AI Mode to Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore, and is adding them to follow-up questions in the United States. The October 28 announcement broadens the reach of advertising in Google’s conversational search as Alphabet reports slower year-over-year growth in Search revenue.
Google’s announcement covers two developments. Ads in AI Mode—a chat-style search experience that supports longer questions and follow-ups—are rolling out in the 10 new countries. In the U.S., ads can now appear as users ask additional questions in an AI Mode conversation, rather than only alongside an initial query. Google said Brazil, Mexico and the United Kingdom are planned for the fourth quarter of 2026.
The company describes one possible placement with a pool-care example: a person asks how to deal with green pool water, receives advice about testing and cleaning it, and may see an ad for a pool vacuum. Google says ads in AI answers carry a “Sponsored” label and that advertising does not affect the AI-generated answer. Those are Google’s statements; the supplied source reports no independent audit of whether the answer and ad are separated in practice.
Advertisers do not get a separate campaign setting for these placements, according to Google Ads Help as summarized by ThorstenMeyerAI.com. Existing Search, Shopping and Performance Max campaigns can serve in the formats automatically. The source says advertisers cannot opt out or directly target these placements, and that reporting is aggregated. Google’s AI may also generate short explanations alongside ads that advertisers cannot edit.
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 the Search Conversation
Putting ads inside AI answers changes where users encounter commercial messages: they may see them while reading a synthesized response, rather than only among conventional search results. Adding placements to follow-up questions extends that opportunity across a conversation, giving Google more chances to show advertising as a user narrows a request.
The move also matters to advertisers because participation is tied to existing campaign types, not a distinct AI-search buy. That may broaden distribution without requiring a new campaign, but it leaves advertisers with less direct control over placement, according to the help information cited by the source. For users, the practical distinction is the “Sponsored” label; Google’s assurance that ads do not shape the answer has not been independently verified in the material provided.
Publishers have a separate concern: if AI answers satisfy more searches without a click to a website, referral traffic could be affected even if ads continue to attract clicks. A working paper by Agarwal and Sen, cited in the source, reports that in a randomized experiment involving 1,065 U.S. users, AI Overviews reduced website clicks by 39.8% when shown, while ad clicks showed no measurable change. That is a specific experimental result, not proof that the same effect applies across countries, query types or AI Mode.
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Search Ads Enter AI Formats
Google has introduced advertising into AI search in stages. According to the company’s earlier announcements as recounted by ThorstenMeyerAI.com, ads in AI Overviews began appearing on mobile in the U.S. in October 2024, followed by desktop in May 2025. Google also began testing ads in AI Mode that month. AI Overviews are generated summaries shown within ordinary search results; AI Mode is a separate, conversational interface.
At Google Marketing Live in May 2026, Google began testing additional formats, including Conversational Discovery ads, with ad text tailored to a question, and Highlighted Answers, which can place an ad within a list of AI recommendations. The October expansion is a further rollout, not the first introduction of advertising to Google’s AI search products.
The announcement arrived alongside Alphabet’s third-quarter results. Search & other revenue was $63.4 billion, up 12% year over year, compared with growth of 17% in the previous quarter, according to Alphabet. Chief business officer Philipp Schindler cited currency movements as the largest factor behind the growth rate and also said lower monetization of fast-growing AI Mode queries affected results. The source notes that Google’s comparison of sponsored and organic product-list click-through rates was based on the company’s U.S. data for August 20 to September 3, 2026, and does not measure clicks to websites.
„“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, as quoted on the company’s earnings call
Traffic, Labels and Reach Remain Open
It is not yet clear how widely ads will appear across eligible AI Mode conversations, how their frequency may change as the rollout proceeds, or how the new placements will affect user behavior and publisher referrals. Google’s announcement describes the expansion but does not provide a complete country-by-country timetable beyond the stated plans for Brazil, Mexico and the U.K. in the fourth quarter.
The source says Google’s help page listed 12 countries for ads inside AI answers as of October 29 and did not list Germany or other European Union countries. That status may change, and the available material does not explain whether or when the rollout could reach those markets. It also does not provide an independent assessment of Google’s claim that ads do not influence AI-generated answers.
The working paper’s finding concerns AI Overviews in a randomized U.S. user experiment, not the newly expanded AI Mode placements. Its result should not be treated as a forecast of traffic changes from this announcement. Google’s reported comparison between ad and unpaid product-list click-through rates likewise does not establish whether either format sends more visitors to publishers’ websites.
Watch the Country Rollout
Google’s next stated expansion is to Brazil, Mexico and the United Kingdom, planned for the fourth quarter of 2026. The rollout across the 10 newly named countries and the addition of U.S. follow-up-query ads will show how the company applies the formats beyond its earlier U.S. placements.
Advertisers and publishers will be watching for further details on placement controls, reporting and referral traffic. Users can look for the “Sponsored” label as Google’s ads appear in AI answers, while the company’s claims about the relationship between paid placements and generated responses remain unverified by an independent audit in the source material.
Key Questions
Where is Google expanding ads in AI Mode?
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 changing for U.S. users?
Ads can now appear in AI Mode follow-up questions, so an ad may be shown later in a conversation as well as alongside an initial query.
Can advertisers opt out of these placements?
The source’s account of Google Ads Help says eligible Search, Shopping and Performance Max campaigns participate automatically, with no separate opt-out or targeting control for the AI placements.
How does Google say users can identify an ad?
Google says ads in AI answers will carry a “Sponsored” label. It also says ads do not influence the AI’s answer, but the source reports no independent audit of that claim.
Does the rollout mean publishers will receive fewer clicks?
The announcement does not establish that outcome. A cited working paper found fewer website clicks when AI Overviews appeared in a randomized U.S. experiment, but that result is not a direct measurement of the newly expanded AI Mode ads or their effects on publisher traffic.
Source: ThorstenMeyerAI.com
