🔍 Read the full analysis: When The Answer Carries The Ad: Google Takes AI Search Ads Global As Search Growth Slows on ThorstenMeyerAI.com
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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 questions. The move comes as Search & other revenue growth slowed to 12% in the third quarter; the company says AI Mode searches are less monetized so far. Advertisers participate through existing campaigns, while questions remain about the effect on website traffic and how independently Google’s ad-separation claims have been checked.
Google announced October 28 that ads in its chat-style AI Mode search experience are expanding to 10 additional countries, while U.S. users will also see ads in follow-up questions. The rollout brings advertising further into answers generated by AI as Google Search & other revenue growth slowed to 12% in the third quarter, and raises questions about ad disclosure, advertiser control and the effect on traffic to publishers.
The countries added to AI Mode ads 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, the company is adding what it calls multiturn ads: advertising may appear in answers to later questions in an AI Mode conversation, not just the initial query. Google said ads will be labeled “Sponsored.”
Two products are involved. AI Overviews are generated summaries shown within standard Google search results; AI Mode is a separate, conversational search experience that supports follow-up questions. Google says the new rollout concerns AI Mode, while ads have appeared in U.S. AI Overviews since October 2024. The company expanded those placements to desktop in May 2025, when it also began testing ads in AI Mode.
For advertisers, the placements use existing Search, Shopping and Performance Max campaigns, according to Google Ads Help. Advertisers cannot opt out or set separate targeting for these AI placements, and results are reported in aggregate. Google’s systems generate short explanatory text alongside ads; advertisers cannot edit that copy, the help page says. The announcement does not describe a separate campaign control for the new markets.
Google also said AI Mode queries are, on average, three times longer than traditional searches, and that click-through rates for sponsored and unpaid product-list items in AI Mode were similar. The company’s comparison used internal U.S. data from August 20 to September 3, 2026. It compares product-list placements with one another, not clicks from AI answers 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 Enter More AI Conversations
The expansion puts commercial links inside a search experience designed to answer questions conversationally. A user asking how to fix a green pool, for example, could receive instructions and see an ad for a pool vacuum within the same response. The answer and the ad share a screen, making clear labeling and the distinction between paid placement and generated guidance important to users.
The rollout also gives Google a way to develop advertising in a format the company says currently earns less than traditional search. Alphabet reported $63.4 billion in Search & other revenue for July through September, up 12% year over year. That growth rate followed 17% in the prior quarter, 19% in the first quarter and 17% in the final quarter of 2025. Google has said AI Mode query growth is strong but monetization is lower so far.
Publishers and other sites that rely on search referrals have a separate concern: AI answers may satisfy a query without a user visiting a website, even as ads remain visible. A 2026 working paper by Agarwal and Sen, based on a randomized experiment with 1,065 U.S. users, reported that AI Overviews reduced clicks to websites by 39.8% when they appeared. The study found no measurable change in ad clicks in that experiment. That finding concerns AI Overviews and the study’s test conditions; it does not establish what the new AI Mode rollout will do to publisher traffic.
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Search Growth Meets AI Monetization
The announcement arrived alongside Alphabet’s third-quarter results. Search & other revenue rose 12% year over year, compared with 17% in the second quarter and 19% in the first quarter of 2026. Revenue was nearly flat from the second quarter to the third, though the year-over-year growth figure remains positive. Search generated about half of Alphabet’s total revenue in the quarter, according to the company’s earnings release.
On the earnings call, chief business officer Philipp Schindler named exchange rates as the largest factor affecting growth. He also cited changes in some retail advertisers’ spending in Asia and normalized media and entertainment spending after a strong World Cup quarter. Schindler said growth in AI Mode queries affected results because the company was seeing “lower monetization” in that product.
Google has been adding advertising to AI search in stages. Ads in mobile AI Overviews began in the U.S. in October 2024; desktop placements followed in May 2025, alongside tests in AI Mode. At Google Marketing Live in May 2026, the company began testing formats including Conversational Discovery ads, which generate ad text tailored to a question, and Highlighted Answers, which can place an ad within AI recommendations. The October announcement expands the geographic reach of AI Mode ads and extends them to follow-up turns in the U.S.
““The strong growth in AI Mode queries had an impact because of the lower monetization we were seeing in AI mode.””
— Philipp Schindler, Google chief business officer, on Alphabet’s third-quarter earnings call
Traffic Effects Remain Unmeasured
Google says ads in AI answers do not influence the AI-generated answer itself. That is the company’s claim; the source material identifies no independent audit verifying it. The planned “Sponsored” label gives users a cue, but the announcement does not provide independent evidence about whether people consistently distinguish paid content from the surrounding answer.
The impact on publishers is also unresolved. The cited working paper studied AI Overviews in a controlled experiment, not this new international AI Mode rollout. Its reported 39.8% decrease in website clicks applies to the experiment’s conditions and cannot be treated as a measured effect of AI Mode ads. Google’s internal comparison of sponsored and unpaid product-list click-through rates likewise does not measure referrals to publishers.
Google’s help page listed 12 countries for ads inside AI answers as of October 29, with the formats described as English-only. Germany and other European Union countries were not listed. The source does not establish whether or when the ads will launch there, or whether advertisers will receive additional controls as the rollout grows.
Watch the Fourth-Quarter Rollout
Google’s stated next geographic expansion is Brazil, Mexico and the United Kingdom, planned for the fourth quarter of 2026. The company has not provided a more specific date in the material available here. Advertisers and publishers will be watching for details about how the placements perform in those markets and whether reporting or campaign controls change.
For users, the immediate practical cue is Google’s promised “Sponsored” label on ads in AI answers. For businesses and sites that depend on search, the key evidence to watch is not only ad engagement but also referral traffic and how Google reports performance. The October announcement sets out the rollout; it does not yet settle the longer-term effects on advertiser returns, publisher visits or user trust.
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.
Will ads appear in follow-up questions?
Yes. Google said it is adding multiturn ads in the United States, allowing ads to appear in follow-up queries within AI Mode conversations.
Can advertisers opt out of these AI placements?
According to Google Ads Help, AI placements draw from existing Search, Shopping and Performance Max campaigns. Advertisers cannot opt out or separately target the placements, and results are reported in aggregate.
How will users identify ads in AI answers?
Google says ads will carry a “Sponsored” label. The company also says ads do not affect the AI-generated answer, but the source material does not identify an independent audit of that claim.
Does the announcement prove AI search is reducing publisher traffic?
No. A 2026 working paper reported fewer website clicks when AI Overviews appeared in its experiment, but it did not test this AI Mode rollout. The effect of the new placements on publisher referrals remains unclear.
Source: ThorstenMeyerAI.com
