🔍 Read the full analysis: What Google’s Global AI Search Ad Push Means For Search 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 more countries, with ads also entering U.S. follow-up answers. The move comes as Google Search advertising growth slowed to 12% in the third quarter; the effect on website traffic and ad influence on AI answers remains uncertain.
Google is expanding ads in its chat-style AI Mode to 10 more countries and adding them to follow-up answers in the United States, the company said October 28. The change brings advertising further into conversational search as Alphabet reported that Google Search and other advertising revenue grew 12% to $63.4 billion in the third quarter, down from 17% the quarter before.
The expansion covers 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 U.S., ads can now appear in responses to later questions in an AI Mode conversation, not only in the initial response. Google describes these as “multiturn ads.”
Google has two AI search formats relevant to the rollout. AI Overviews are summaries shown within standard search results; AI Mode is a separate, chat-style experience that supports longer queries and follow-ups. Google says ads in AI answers will be labeled “Sponsored”. Its help materials say existing Search, Shopping and Performance Max campaigns can serve in the formats automatically, with no separate advertiser opt-out or targeting controls. Reporting is provided in aggregate, and Google generates short ad explainers that advertisers cannot edit.
Google says AI Mode queries are, on average, three times longer than traditional searches. It also reported that click-through rates for sponsored and unpaid product-list items in AI Mode were similar, based on internal U.S. data from August 20 to September 3, 2026. That comparison concerns clicks on product listings within AI Mode; it does not establish whether users click through to external websites at the same rate.
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 Conversation
For users, the change means a product recommendation or commercial link may appear inside an answer to a practical question, rather than only beside a conventional list of search results. Google’s pool-cleaning example describes an AI answer explaining how to address green water while showing a pool vacuum for sale. The company says those placements will carry a “Sponsored” label, but users still have to distinguish paid material from the surrounding answer.
For advertisers, the expansion offers access to longer, more specific queries, but less direct control over how ads appear. According to Google’s help materials, eligible campaigns participate automatically, while advertisers cannot separately target these placements or opt out. The company’s generated explainers are also not editable by advertisers. That makes the rollout relevant to how brands measure performance and manage the wording shown alongside AI-generated responses.
Publishers have a different concern: AI answers can satisfy a query before a user visits a website. A 2026 working paper by Agarwal and Sen, based on a randomized experiment with 1,065 U.S. users, found that AI Overviews reduced clicks to websites by 39.8% when they appeared. The study found no measurable change in ad clicks in the experiment. Those results are limited to the study’s design and do not establish what the international rollout will do to publishers’ traffic or advertising revenue.
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From U.S. Tests to Global Rollout
Google’s rollout follows earlier steps. The company began showing ads in AI Overviews on mobile in the United States in October 2024 and added desktop placements in May 2025, when it also began testing ads in AI Mode. At its May 2026 Google Marketing Live event, it introduced tests of additional formats, including conversational ad text tailored to a query and highlighted answers that can place an ad among AI recommendations.
The October announcement comes amid slower growth in Search advertising. Alphabet reported $63.4 billion in Google Search and other revenue for July through September, up 12% year over year. Growth had been 17% in the previous quarter, after 19% and 17% in the two quarters before that. Alphabet Chief Business Officer Philipp Schindler cited exchange rates as the biggest factor behind the slowdown and also pointed to lower monetization of fast-growing AI Mode searches.
Schindler said query growth was strong, while revenue per query in AI Mode was lower than in the established search format. The company’s rollout can therefore be understood both as a product expansion and an effort to develop advertising in a search experience that is growing but, according to Alphabet, currently monetizes less effectively. That explanation comes from the company; it does not by itself establish how much the new placements will add to revenue.
““Ads will be clearly labeled as ‘Sponsored’.””
— Shashi Thakur, Google’s head of Search ads, in the October 28 announcement
Traffic Effects Remain Unsettled
Google says ads do not influence the AI’s answer, but that is the company’s statement; the supplied source material identifies no independent audit verifying it. The “Sponsored” label is a stated policy, but available information does not show how users will interpret the distinction in practice or whether labeling will be equally clear across markets and formats.
The third-quarter revenue figures also do not isolate the effect of the new ads. Alphabet cited exchange rates and other business factors as well as lower monetization in AI Mode. It is not yet clear how much revenue the expansion will generate, whether advertiser results will differ by country, or how AI answers and follow-up ads will affect visits to publishers’ websites. The cited working paper studied AI Overviews in a U.S. experiment, not this new international AI Mode rollout.
As of October 29, Google’s help page lists 12 countries for ads in AI answers and says the feature is available in English. Germany and other EU countries are not listed. The provided information does not establish whether or when Google will launch these ads elsewhere in Europe.
Expansion and Performance Tracking
Google has said it plans to bring AI Mode ads to Brazil, Mexico and the U.K. in the fourth quarter of 2026. The next measures to watch are the rollout’s availability by country, the formats users encounter in follow-up answers, and whether Google adds advertiser controls or more detailed reporting.
Future Alphabet earnings reports may show whether Search advertising growth changes as AI Mode expands, but revenue figures alone may not isolate the ads’ contribution. Evidence about user behavior and publisher traffic will require separate measurement. For now, the confirmed development is the wider availability of AI search ads; their financial impact and effects on clicks remain open questions.
Key Questions
Which countries are getting 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 U.K. are planned for the fourth quarter of 2026.
What are multiturn ads?
They are ads that can appear in answers to follow-up questions in AI Mode. Google said it is launching the format in the United States.
Can advertisers opt out of these placements?
Google’s help materials say existing Search, Shopping and Performance Max campaigns can serve in the formats automatically, with no separate opt-out or targeting control. Reporting is aggregate, and advertisers cannot edit Google-generated ad explainers.
Does Google say ads affect its AI answers?
Google says ads do not influence the AI’s answer and that ads will be marked “Sponsored.” The supplied source material reports no independent audit of the claim about influence.
Are ads in AI answers available in Europe?
As of October 29, 2026, Google’s help page listed 12 countries for ads in AI answers, in English. Germany and other EU countries were not listed, and no European launch date was provided.
Source: ThorstenMeyerAI.com
