🔍 Read the full analysis: A New Chapter For Search: Google’s AI Ads Go Global 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 appearing in US follow-up questions. Alphabet reported Search & other revenue growth of 12% in the third quarter, down from 17% in the previous quarter; Google cited lower monetization of AI Mode searches as one factor. The impact on publisher traffic and how independently users can verify Google’s ad-separation claims remain open questions.
Google is expanding ads in AI Mode, its chat-style search experience, to Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore, and is adding ads to US follow-up questions. The October 28 announcement came as Alphabet reported that Search & other revenue grew 12% to $63.4 billion in the July-to-September quarter, slower than the prior quarter’s 17% growth.
The rollout covers ads in AI Mode, where people can ask longer questions and continue with follow-ups. Google also said ads will begin appearing in answers to follow-up questions in the United States. Brazil, Mexico and the United Kingdom are planned for the fourth quarter of 2026, according to the announcement. Google describes the new US placement as “multiturn ads,” extending advertising beyond the opening query in a conversation.
Google says ads in AI answers will be labeled “Sponsored” and will not influence the AI-generated answer. Those are the company’s statements; the source material does not cite an independent audit of whether ads are consistently separated from answers. Google’s help information says existing Search, Shopping and Performance Max campaigns can participate automatically, with no separate opt-out or targeting for these placements. Reporting is aggregated, and Google’s AI may create short explanatory text beside ads that advertisers cannot edit.
Alphabet Chief Business Officer Philipp Schindler said on the earnings call that exchange rates were the largest factor affecting Search growth. He also cited changes in retail advertising and media spending, and said growth in AI Mode queries had an impact because of “the lower monetization we were seeing in AI mode.” Google says AI Mode queries are, on average, three times longer than conventional searches. The company also reported that sponsored and organic product-list clicks within AI Mode had similar click-through rates in its US data from August 20 to September 3, 2026. That comparison concerns product-list items, not clicks 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 Move Deeper Into AI Search
The expansion puts advertising into more of the conversational search experience, where a user may ask several questions before deciding what to buy or do. For Google, the rollout offers a way to develop ad revenue in a format the company says is seeing strong query growth but currently has lower monetization than its other search activity. Alphabet’s quarterly figures underline the business stakes: Search & other remained a major revenue source, but its reported growth rate slowed to 12%.
The change also matters to advertisers and publishers for different reasons. Advertisers may have their existing campaigns represented in AI answers without a dedicated setting to control the placement, while publishers depend on visits generated by search results. A 2026 working paper by Agarwal and Sen, based on a randomized experiment with 1,065 US users, reported that AI Overviews reduced clicks to websites by 39.8% when those summaries appeared; the study found no measurable change in ad clicks. This is evidence about AI Overviews in that experiment, not a measured result of the new AI Mode rollout. It does, however, point to the separate questions of who receives clicks and whether ads retain visibility when answers are generated directly on Google.
For users, the practical distinction is between an AI-generated answer and a labeled paid placement. Google says the label will be “Sponsored,” but readers may still want to check whether a recommendation is paid before acting on it. The company’s claim that ads do not shape the answer has not been independently verified in the material available here.
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From AI Overviews to Follow-Ups
Google’s AI search advertising has expanded in stages. Ads in AI Overviews—the AI summaries placed within standard search results—began appearing for US mobile users in October 2024, according to the source account. Google brought them to desktop in May 2025 and began testing ads in AI Mode. At Google Marketing Live in May 2026, the company introduced tests of additional formats, including Conversational Discovery ads, which generate ad text tailored to a query, and Highlighted Answers, which can place an ad within a list of AI recommendations.
The October announcement extends the geographic reach of AI Mode ads and adds placements in US follow-up questions. Google’s advertising help page listed 12 countries for ads in AI answers, in English, as of October 29, according to the source material. Germany and other European Union countries were not on that list. The source article also discloses that its publisher network earns revenue from search referrals and affiliate links, a financial interest relevant to its discussion of traffic and advertising.
Alphabet’s quarterly results provide the immediate business backdrop. Search & other revenue was $63.4 billion in the third quarter, after $63.3 billion in the second quarter. Its year-over-year growth rates were 17% in the fourth quarter of 2025, 19% in the first quarter of 2026, 17% in the second quarter and 12% in the third. Google attributed the slowdown to several factors, including exchange rates and lower monetization of AI Mode searches; it did not attribute the entire change to AI Mode.
“AI Mode queries are on average three times longer than classic searches.”
— Google, describing its AI Mode query length
Questions on Labels and Traffic
Google has not provided, in the material available for this report, an independent audit confirming that ads never affect the AI-generated answer or that “Sponsored” labels will appear consistently across placements and countries. The company’s statement about ad separation should therefore be treated as Google’s claim, not independently established fact.
The likely effect on website traffic from the new AI Mode placements is also unknown. The Agarwal and Sen working paper reports a result for AI Overviews in a US experiment; it does not measure this rollout or establish what will happen to clicks in AI Mode. Google’s cited click-through comparison covers sponsored and organic product-list items inside AI Mode and does not answer whether users will click through to publishers’ sites.
It is not clear when the planned Brazil, Mexico and UK expansion will start within the fourth quarter, or whether Google will add further countries. The source material says European Union countries were not listed for ads in AI answers as of October 29, but does not establish whether or when that could change.
Rollout and Revenue Signals
Google’s stated next geographic step is expansion to Brazil, Mexico and the UK in the fourth quarter of 2026. The new US follow-up placements and the ten-country rollout will offer the next evidence of how widely ads appear in AI Mode conversations, but Google has not supplied a date-by-date schedule for each market in the source material.
Advertisers and publishers will also be watching for more detailed reporting on campaign delivery, ad performance and referral traffic. Alphabet’s next financial results should show whether Search revenue growth changes as AI Mode use and its advertising expand. Until then, the company’s quarterly figures, campaign rules and stated labeling policy are confirmed, while the effects on users’ choices and publishers’ visits remain unsettled.
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 are multiturn ads?
They are ads that can appear in answers to follow-up questions in a user’s AI Mode conversation. Google said the placements are launching in the United States.
Can advertisers opt out of these placements?
According to Google Ads Help, existing Search, Shopping and Performance Max campaigns can participate automatically. The source material says advertisers have no separate opt-out or targeting control for these placements, and reporting is aggregated.
How will users identify ads in AI answers?
Google says ads will carry a “Sponsored” label. Its additional claim that ads do not affect the AI’s own answer has not been independently audited in the source material.
Did AI Mode ads cause the slower Search revenue growth?
Alphabet’s chief business officer named lower monetization of AI Mode searches as one factor, while also citing exchange rates and other advertising conditions. The company did not attribute the full slowdown to AI Mode.
Source: ThorstenMeyerAI.com
