Short answer

A September Ahrefs study found AI Overviews on 82.9% of tracked branded U.S. desktop search results on September 29. November’s Google AI search briefing covers that finding alongside changes to source links, advertising and access.

AI Overviews appear often in tracked results. The share depends on the query set, market and device. Below are the five facts that matter for brands and marketers, each linked to its original source. Short on time? Swipe through the 60-second story or browse the whole November 2026 AI News rack.

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Fact 01 / 05AI Overviews

Coverage varies by query, market and device

83%Tracked branded U.S. desktop results on Sep 29

About 83% in one tracked branded sample. Ahrefs found AI Overviews in 82.91% of tracked U.S. desktop results for branded keywords on September 29. The same study reported a September monthly average of 73.3% for branded and 78.3% for non-branded keywords in its dataset.

Ahrefs — sourceAI Overviews on branded searches: methodology and results
Fact 02 / 05AI Overviews

Up to four ads in AI Mode

4ad slots per AI Mode answer

Ads are moving inside the answer. Google can now show up to four ads in AI Mode responses for a single query, instead of the usual two — one more slot appears below some answers.

PPC Land — sourceGoogle AI Mode gains a fourth ad slot below some answers
Fact 03 / 05AI Overviews

No Search without AI — even for schools

0AI-free versions of Search

Want Google Search? AI comes with it. On November 3, Google gave schools new controls to switch off its AI tools for students — but schools that keep Google Search must accept AI Overviews and AI Mode. Google says these will guide students step by step rather than hand out answers.

MediaNama — sourceSchools cannot turn off Google AI Overviews and keep Search
Fact 04 / 05AI Overviews

Links inside AI Overviews are changing

LinksNew placement in Overviews

More links. Fewer clicks? Google announced updates to how links appear in AI Overviews. A small new study looked at whether those links actually drive clicks — the open question for every publisher and brand.

Search Engine Roundtable — sourceNovember 2026 Google Webmaster Report
Fact 05 / 05Gemini

Third parties start blocking AI search

K-12AI Overviews blocked by Securly

Some schools are switching it off anyway. Securly announced that its 'Restrict AI Mode' setting now also blocks AI Overviews for K-12 students — a sign of how hard it has become to separate Google Search from Google's AI.

Yahoo Finance — sourceSecurly blocks Google AI Mode and AI Overviews for K-12 schools
Arrow's take

What it means for brands

  • Check whether your own buyer queries trigger AI Overviews before prioritizing this channel.
  • Record linked sources separately from paid placements when reviewing AI Mode.
  • Put the direct answer and verifiable supporting detail together on the relevant page.

Go deeper

Sources

  1. AI Overviews on branded searches: methodology and results — Ahrefs
  2. Google AI Mode gains a fourth ad slot below some answers — PPC Land
  3. Schools cannot turn off Google AI Overviews and keep Search — MediaNama
  4. November 2026 Google Webmaster Report — Search Engine Roundtable
  5. Securly blocks Google AI Mode and AI Overviews for K-12 schools — Yahoo Finance

Published November 9, 2026 · Updated November 10, 2026 · See the linked sources for dates and access.