🔍 Read the full analysis: Google Takes Its AI Search Ad Model To Markets Worldwide on ThorstenMeyerAI.com
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TL;DR
Google said it will bring ads in AI Mode to 10 more countries and show ads in US answers to follow-up questions. The move expands advertising within conversational search as Google reports slower growth in Search revenue; advertisers are included through existing campaigns, while the effect on publishers and users is still uncertain.
Google is expanding ads in its AI Mode search experience to 10 more countries and adding ads to US answers to follow-up questions, the company said October 28. The rollout brings advertising further into conversational search as Alphabet reports slower growth in Search revenue, while leaving advertisers with no separate opt-out for these placements through existing campaigns.
The new 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 US, ads can now appear not only in responses to an initial AI Mode query but also in answers to later questions in the same conversation. Google calls these placements “multiturn ads.”
Google’s announcement concerns AI Mode, its chat-style search experience. It is distinct from AI Overviews, the AI summaries that appear within standard search results. Ads have appeared in US mobile AI Overviews since October 2024, according to the source material; Google expanded them to desktop and began testing AI Mode ads in May 2025. The October announcement extends AI Mode advertising internationally and adds follow-up questions in the US.
Google Ads Help says existing Search, Shopping and Performance Max campaigns may serve in these placements automatically. Advertisers do not get separate targeting controls or an opt-out for AI Mode ads, and reporting is provided in aggregate. Google may also generate short explanatory text alongside an ad; advertisers cannot edit that text, according to the help documentation cited in the source.
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 Search Conversations
The change extends Google’s advertising model into answers that can address a sequence of questions, rather than only a conventional list of search results. For advertisers, that offers access to placements within conversations where users may describe a need in detail. Google says AI Mode queries are, on average, three times longer than classic searches, and says click-through rates for sponsored and organic product listings in AI Mode were similar in its internal US data from August 20 to September 3, 2026. That comparison is limited to those listings and dates; it does not establish how often users click through to websites.
The rollout also comes as Search & other revenue grew 12% to $63.4 billion in the third quarter, down from 17% growth in the prior quarter, according to Alphabet. On the earnings call, Google business chief Philipp Schindler said exchange rates were the largest factor in the slowdown and also cited lower monetization of fast-growing AI Mode queries. The figures do not show that the new ads will reverse the trend, but they underline Google’s interest in earning revenue from search activity shifting into AI experiences.
For publishers, the stakes include whether users still visit source websites when an AI answer satisfies a query. A 2026 working paper by Agarwal and Sen reported that, in a randomized experiment with 1,065 US users, AI Overviews reduced clicks to websites by 39.8% when shown, while clicks on ads showed no measurable change. That result is from a study, not a direct measurement of the new AI Mode rollout, and it does not establish what will happen to publishers across markets.
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From AI Summaries to AI Mode
Google’s AI search advertising has expanded in stages. Ads appeared in mobile AI Overviews in the US in October 2024, then on desktop in May 2025, when Google also began testing ads in AI Mode. At Google Marketing Live in May 2026, the company introduced tests of formats including Conversational Discovery ads, with ad text adapted to a question, and Highlighted Answers, which can place an ad within AI recommendations.
The October 28 announcement adds international AI Mode availability and ads in US follow-up answers. Google says ads in AI answers are marked “Sponsored” and do not influence the AI-generated answer. The labeling is a company commitment; the claim about influence has not been independently audited in the source material. Google’s cited click-through comparison is likewise based on its own internal data, not an independent study.
““Ads will be clearly labeled as ‘Sponsored’.””
— Shashi Thakur, Google’s head of Search Ads, in the October 28 announcement
Questions About Reach and Impact
Google has not disclosed how much revenue the new placements are expected to generate or how quickly they will roll out to every eligible user in each market. The announcement also does not quantify how many searches currently take place in AI Mode or what share will contain an ad. Advertisers’ aggregate reporting may make it difficult to isolate the performance of these placements from other campaign activity.
It is also unclear how the expansion will affect visits to publishers’ websites. The cited experiment concerns AI Overviews, not the new AI Mode ad formats, and its results should not be treated as a direct forecast. Google says ads do not shape its AI answers, but the source material reports no independent audit of that claim. As of October 29, 2026, Germany and other EU countries were not listed among the markets for ads in AI answers, and the source says the feature is listed as English-only.
More Markets Planned This Quarter
Google has said Brazil, Mexico and the UK are planned additions during the fourth quarter of 2026. The company has not given exact launch dates in the information cited here. Advertisers and publishers will be watching for further details about market availability, campaign reporting and the performance of ads shown in follow-up answers.
For users, Google says to look for the “Sponsored” label when an ad appears alongside an AI answer. The scope of the rollout, its commercial effect and any independently verified evidence about how ads relate to generated answers remain open questions as the feature reaches more markets.
Key Questions
Where is Google expanding AI Mode ads?
Google named Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. It plans to add Brazil, Mexico and the UK in the fourth quarter of 2026.
What are multiturn ads?
They are ads that can appear in answers to follow-up questions in a US AI Mode conversation, rather than only alongside the initial query.
Can advertisers opt out of these placements?
According to the Google Ads Help information cited in the source, eligible Search, Shopping and Performance Max campaigns can serve in AI Mode automatically, with no separate opt-out or targeting control.
How will users identify an ad in an AI answer?
Google says ads in AI answers will carry a “Sponsored” label. The company also says ads do not influence the AI’s answer, a claim that the source material says has not received an independent audit.
Are AI Mode ads coming to the European Union?
The countries listed as of October 29, 2026 did not include Germany or other EU markets. The source says the feature was listed as English-only; Google had not announced a broader EU rollout in the material provided.
Source: ThorstenMeyerAI.com
