🔍 Read the full analysis: Google Adds A Global Reach To Its AI Search Ad Plans on ThorstenMeyerAI.com
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TL;DR
Google announced on October 28 that ads in its conversational AI Mode are expanding to 10 additional countries, with US ads also appearing in follow-up answers. The move comes as Google Search advertising growth slowed in the third quarter; how much the new formats will offset that slowdown, and how they affect publisher traffic, remains uncertain.
Google is expanding ads in its AI Mode search experience to 10 more countries and adding them to answers for follow-up questions in the US, extending advertising into more of its chat-style search results. The October 28 announcement comes as Alphabet reported that Google Search and other advertising revenue grew 12% in the third quarter, slower than in the previous quarter.
The 10 newly included markets are Australia, Canada, India, Kenya, Malaysia, New Zealand, Nigeria, Pakistan, the Philippines and Singapore. Google also plans to bring AI Mode ads to Brazil, Mexico and the United Kingdom in the fourth quarter of 2026. In the US, the change means an ad may appear not just in response to an initial AI Mode query, but in an answer to a later question in the same conversation.
Google describes AI Mode as a conversational search experience, distinct from AI Overviews, which are AI-generated summaries shown in standard search results. The company said ads in AI Mode may appear alongside relevant answers and that they will carry a “Sponsored” label. Google’s advertising guidance says existing Search, Shopping and Performance Max campaigns can participate automatically; advertisers do not get separate targeting controls or an opt-out for this placement, and reporting is aggregated.
Alphabet said Search and other revenue reached $63.4 billion in July through September, up 12% year over year. That followed 17% growth in the preceding quarter. Chief business officer Philipp Schindler said currency movements were the largest factor in the slowdown and cited other market conditions. He also said the growth in AI Mode queries affected results because those searches had lower monetization. Google has not disclosed how much revenue AI Mode ads currently generate.
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 Longer AI Search Conversations
For Google, ads in AI answers offer a way to earn revenue as search shifts from short keyword searches toward longer, conversational requests. Google says AI Mode queries are three times longer on average than traditional searches. Longer questions may give its systems more information about a user’s needs, but that does not establish how much more valuable the resulting ad placements are.
The change also reaches beyond Google and advertisers. A direct answer that includes a product recommendation and a sponsored listing could affect how users discover businesses and how much traffic reaches independent websites. A 2026 working paper by Agarwal and Sen reports results from a randomized experiment with 1,065 US users: when AI Overviews appeared, clicks to websites fell 39.8%, while clicks on ads showed no measurable change. The study concerns AI Overviews, not the newly expanded AI Mode placements, so it does not show what those placements will do to traffic.
Users will need to distinguish paid placements from the AI-generated response, while publishers will be watching whether fewer searches produce visits to their sites. Google says ads do not influence the AI’s answer. That is the company’s stated position, not an independently verified finding in the material available for this report.
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From AI Overview Tests to Global Rollout
Google’s AI search advertising has developed in stages. The company began showing ads in AI Overviews on mobile in the US in October 2024; it brought the placements to desktop and started testing ads in AI Mode in May 2025. At Google Marketing Live in May 2026, it announced tests of formats including conversational ad text and highlighted recommendations.
The October announcement extends that work to more countries and to additional turns in a US AI Mode conversation. The commercial backdrop is a large but slower-growing search business: Google Search and other accounted for about $63.4 billion, roughly half of Alphabet’s third-quarter revenue. Alphabet said overall query growth was strong, but also identified lower monetization of AI Mode searches as a factor in Search’s growth rate.
Google’s own comparison of ad performance needs careful framing. It said click-through rates for sponsored and organic product-list items in AI Mode were similar, based on its internal US data from August 20 to September 3, 2026. That comparison is between paid and unpaid product listings within AI Mode; it does not measure clicks to websites or independently establish the effect on publishers.
““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 earnings call
Revenue and Traffic Effects Remain Unknown
Google has not said how many users or advertisers will be affected in each new market, how frequently ads will appear in AI Mode, or how much revenue the format generates. Its public comparison of sponsored and organic product-list click-through rates does not answer whether AI Mode sends fewer users to outside websites.
The working paper on AI Overviews offers evidence about one related search format, but its findings should not be treated as a measurement of the new AI Mode rollout. It is also not clear from the available information how Google’s ad placements will vary by country, language or query. Google’s statements that ads will be labeled and will not shape AI answers are company claims; the source material cites no independent audit of the latter.
As of October 29, Google’s listed country expansion does not include Germany or other European Union markets. The company’s plans for Brazil, Mexico and the UK are scheduled for the fourth quarter, but the precise launch dates and any changes to that schedule have not been provided.
Watch the Fourth-Quarter Market Rollout
The next stated milestone is Google’s planned fourth-quarter expansion of AI Mode ads to Brazil, Mexico and the United Kingdom. Google has not given exact launch dates. Advertisers in markets where placements are available can watch campaign reports, though the company says results are reported in aggregate and participation may come through existing campaign types.
For readers, the clearest immediate cue is Google’s “Sponsored” label on paid placements. Further evidence will be needed to establish how often ads appear in AI conversations, whether they produce meaningful revenue for Google and how those answers affect website visits. Alphabet’s next financial results and any additional Google reporting on AI Mode could clarify the business impact, but no further measurement or independent audit is specified in the announcement.
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 plans to add Brazil, Mexico and the United Kingdom in the fourth quarter of 2026.
What changes for US users?
Ads can now appear in answers to follow-up questions in AI Mode, not only in response to the first question in a conversation. Google says these ads will be labeled “Sponsored.”
Can advertisers opt out of these placements?
Google’s advertising guidance says existing Search, Shopping and Performance Max campaigns can participate automatically. It says advertisers do not have a separate opt-out or targeting control for these placements, and reporting is aggregated.
Does the announcement show that AI Mode ads are reducing website traffic?
No. The cited 39.8% decline in website clicks comes from a working paper’s experiment on AI Overviews, not the AI Mode expansion. The available source material does not establish the traffic effect of ads in AI Mode.
Are AI Mode ads available in the European Union?
The country list available as of October 29, 2026, does not include Germany or other EU markets. Google’s announced fourth-quarter plans name Brazil, Mexico and the UK; no EU launch date is provided.
Source: ThorstenMeyerAI.com
