🔍 Read the full analysis: When The Answer Includes An Ad: Google Scales AI Search Ads on ThorstenMeyerAI.com
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TL;DR
Google said on Oct. 28 it is expanding ads in its chat-style AI Mode to 10 additional countries and bringing them to follow-up questions in the United States. The move comes as Google Search advertising growth slowed to 12% in the latest quarter; the impact on website traffic and the separation between ads and AI answers remain key questions.
Google is expanding advertising inside AI-powered search, adding ads in its chat-style AI Mode to 10 more countries and placing them in U.S. responses to follow-up questions, the company said Oct. 28. The rollout widens the places where users may encounter sponsored results within AI-generated search experiences, as Google’s Search advertising growth has slowed.
The new markets for AI Mode ads are Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. Google said ads are also planned for Brazil, Mexico and the United Kingdom in the fourth quarter of 2026. The company’s October 28 announcement, by Shashi Thakur, who leads Google’s search ads business, also introduces ads in U.S. follow-up questions in AI Mode. That means an ad may appear after a user continues a search conversation, not only with the initial question.
Google says ads in AI answers carry a “Sponsored” label and that advertising does not affect the AI-generated answer. The latter is the company’s assertion; the source material cites no independent audit of whether ads influence the answer. Google also says AI Mode queries are, on average, three times longer than conventional searches. Its reported comparison of ad and unpaid product-listing click-through rates is based on internal U.S. data from Aug. 20 to Sept. 3, 2026, and does not measure clicks to websites.
Advertisers are not being given a separate campaign setting for the new placements, according to Google Ads Help. Existing Search, Shopping and Performance Max campaigns can participate automatically, with no separate targeting or opt-out described in the source material. Results are reported in aggregate, and Google’s AI may write short explanations beside ads that advertisers cannot edit. Google Search & other revenue reached $63.4 billion in July–September, up 12% year over year, Alphabet reported. That growth rate was below the 17% recorded in the prior quarter.
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 Users Into AI Search
The expansion brings a familiar commercial feature—paid placement—into more conversational search interactions. Users may see an ad while asking a question, then encounter another as they refine it. The “Sponsored” label is the immediate cue Google says will distinguish these placements, but users will need to notice it within an answer that also contains AI-generated material.
The change also matters to businesses that rely on search traffic. A randomized experiment involving 1,065 U.S. users, described in the source as a 2026 working paper by Agarwal and Sen, found that AI Overviews reduced clicks to websites by 39.8% when they appeared. The study found no measurable change in ad clicks. This finding concerns AI Overviews, not the newly expanded AI Mode placements, and it is a working-paper result rather than a peer-reviewed finding. It suggests that traffic effects for publishers and advertisers may differ, but does not establish what the new rollout will do.
For Google, the move gives it additional opportunities to show ads in AI search. The company has said AI Mode searches are growing, while also acknowledging that those searches have had lower monetization than other search activity. That makes the rollout relevant to advertisers, publishers and users alike, though the available figures do not show how much revenue the new placements will generate.
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From AI Overviews to AI Mode
Google’s AI search advertising has expanded in stages. Ads in AI Overviews—summaries shown within ordinary search results—launched for U.S. mobile users in October 2024, according to the company’s published timeline. Google brought them to desktop in May 2025 and began testing ads in AI Mode, a separate chat-style search experience where users can ask longer questions and follow up.
At Google Marketing Live in May 2026, the company began testing additional ad formats, including Conversational Discovery ads, which generate ad text tailored to a question, and Highlighted Answers, where an ad can appear within a list of AI recommendations. The Oct. 28 update adds international markets and multiturn ads in the United States. The source material says Google’s help page listed 12 countries for ads in AI answers, in English, as of Oct. 29; Germany and other EU countries were not listed.
The expansion arrives amid slower growth in Search & other revenue. Alphabet reported year-over-year growth of 19% in the first quarter of 2026, 17% in the second and 12% in the third. On the company’s earnings call, Chief Business Officer Philipp Schindler cited currency movements as the largest factor behind the slowdown and also pointed to lower monetization in AI Mode. The company’s figures show a slowdown, but do not by themselves establish that AI search ads will reverse it.
““Ads will be clearly labeled as ‘Sponsored’.””
— Shashi Thakur, Google’s search ads chief, as quoted in Google’s Oct. 28 announcement
Traffic Effects Remain Unmeasured
The announcement does not provide an estimate of the additional revenue expected from the new placements or the number of users likely to see them. It is also unclear how often ads will appear in follow-up questions, or how Google will decide which conversation turns receive a sponsored placement.
Google says advertising does not shape the AI’s answer, but the source material provides no independent audit of that claim. The cited experiment on AI Overviews measured website and ad clicks, not the effect of the latest AI Mode rollout. Its result cannot establish whether AI Mode ads will change publisher referrals, advertiser performance or user behavior. The country list also leaves Europe outside the listed markets as of Oct. 29; the source does not specify whether or when EU availability might change.
Watch the Market Rollout
Google’s next stated geographic milestones are the planned launches in Brazil, Mexico and the United Kingdom during the fourth quarter of 2026. The company’s rollout and help pages will clarify which markets and languages are supported as availability changes.
Advertisers and publishers will be watching for reporting on how the placements perform and whether Google provides more detailed controls or measurement. For users, the most immediate guide is the “Sponsored” label Google says will accompany ads. The company has not provided a timeline for independent verification of its claim that ads do not influence AI answers.
Key Questions
Where is Google expanding ads in AI Mode?
Google named 10 additional countries: 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.
What does Google mean by ads in follow-up questions?
In the United States, ads can appear in later turns of an AI Mode conversation, not just alongside the first search question. Google calls these multiturn ads.
Can advertisers opt out of these placements?
According to Google Ads Help as described in the source material, existing Search, Shopping and Performance Max campaigns may participate automatically. The material says there is no separate targeting or opt-out for the placements.
How can users identify an ad in an AI answer?
Google says ads will carry a “Sponsored” label. It also says ads do not affect the AI’s answer, but the source material reports no independent audit of that claim.
Does the announcement show that AI search ads will cut website traffic?
No. A cited working-paper experiment found fewer website clicks when AI Overviews appeared, but it did not test the new AI Mode rollout. The traffic effect of these expanded ads remains unclear.
Source: ThorstenMeyerAI.com
