How Often Do Google AI Overviews Appear? AI Overviews Statistics for 2026

What share of Google searches show an AI Overview?

Published studies put it anywhere from about 16% to about 48% of searches, and the spread comes from what each study counts. Pew Research Center found an AI summary on 18% of the real Google searches made by 900 US adults in March 2025. Semrush measured 15.69% of a 10-million-keyword database in November 2025. Conductor counted 25.11% of about 21.9 million US searches in September and October 2025. BrightEdge reported about 48% of its tracked keywords in February 2026.[1][2][4][5]

None of these numbers is wrong. They answer different questions: how often real people see one, how often a keyword database triggers one, or how often a vendor's own index or tracked set triggers one. If you need one number, quote it with its panel and date.

Disclosure: This article is published by CiteLadder, which sells an AI visibility product that tracks Google AI Overviews among other engines. All figures below are third-party data. We read every source on 20 October 2026 and report each number with its method and data period. Sections labeled "Our reading" are CiteLadder's interpretation, not data.

Key numbers at a glance

Study by study: why prevalence numbers disagree

Each study draws a different denominator. That one choice explains most of the gap.

Pew measures what people actually searched

Pew used browsing data from 900 US adults in its KnowledgePanel Digital panel for March 1 to 31, 2025. It then re-ran each Google search through a scraping service between April 7 and 17, 2025. Of 68,879 unique searches, 12,593 produced an AI summary, or 18%. About six in ten respondents (58%) saw at least one AI summary that month.[1]

This is the closest thing to "how often a person sees one." Its limits are the date, the US-only panel and the gap between the search and the re-run.

Semrush measures a keyword database over time

Semrush analyzed more than 10 million keywords. The share triggering an AI Overview rose from 6.49% in January 2025 to 24.61% in July, then fell to 15.69% in November.[2] A keyword database counts each keyword once, however often people search it. Its result also moves with Google's rollout decisions, which is why the line peaks and falls.

Conductor and BrightEdge measure vendor indexes

Conductor analyzed about 21.9 million unique Google searches from its own index over four weeks and found nearly 5.5 million with an AI Overview (25.11%).[4] BrightEdge tracked AI Overview presence daily across its keyword set and reported growth from about 31% in February 2025 to about 48% in February 2026.[5]

Both sets come from the vendor's own index or tracking. Neither page says its set is a random sample of all Google searches.

Our reading

The highest figure comes from a vendor's tracked keyword set, and the lowest from a broad keyword database. Pew shows that query length alone moves the rate from 8% to 53% (see the next section). So a portfolio heavy in long, question-style keywords will report a much higher rate than one heavy in short head terms. Treat any single "percentage of searches" as a property of that study's query mix, not of Google.

Which queries trigger AI Overviews

Longer queries and questions trigger them far more often

Pew found AI summaries on 8% of one- or two-word searches but 53% of searches with 10 words or more. Searches starting with words such as "who," "what," "when" or "why" produced a summary 60% of the time. Searches with both a noun and a verb did so 36% of the time.[1]

Seer Interactive saw the same pattern in its client data. Informational queries showed an AI Overview 36% of the time, commercial queries 8% and transactional queries 5%. Comparison queries ("X vs Y") triggered one 95.4% of the time and question-format queries 85.9%.[6]

The intent mix is widening

In Semrush's data, informational queries made up 91.3% of AI Overview-triggering keywords in January 2025 and 57.1% by October 2025. Semrush reports that, since October 2024, commercial keywords rose from 8.15% to 18.57% of the set and transactional keywords from 1.98% to 13.94%. Navigational keywords reached 10.33% by October; the page gives two different starting values for that series (0.74% and 0.84%).[2]

A second Semrush study of more than 600,000 US desktop keywords found the share of commercial-intent results with an AI Overview grew 71% between November 2025 and April 2026. The transactional share fell 5%. Finance had the largest commercial increase, at 231%.[3]

These two Semrush figures describe different things. The first is the intent mix of keywords that already trigger an Overview. The second is how often each intent triggers one. Seer's 8% commercial rate and Semrush's rising commercial share can both be true.

Industry matters as much as intent

Conductor found the highest AI Overview rate in Health Care (48.7%) and the lowest in Real Estate (4.4%) and Consumer Staples (6.8%).[4] Semrush's November 2025 data put Science highest (25.96%), with Real Estate, Shopping, and Arts and Entertainment under 3%.[2]

What happens to clicks

This is where the evidence disagrees most. The three main datasets use different methods and reach different conclusions.

Pew: fewer clicks when a summary appears

Users who saw an AI summary clicked a traditional result link on 8% of visits. Users who did not see one clicked on 15%. Links inside the summary were clicked on 1% of visits. Users ended their browsing session on 26% of pages with a summary, against 16% without one.[1]

Pew compares different searches with and without a summary. Searches that trigger a summary are longer and more question-like, so part of the gap may reflect the query type rather than the summary.

Semrush: no rise in zero-click on the same keywords

Semrush and its clickstream partner Datos studied more than 200,000 keywords. Keywords with AI Overviews had higher zero-click rates on average. But for keywords that gained an Overview between May and October 2025, the zero-click rate fell from 33.75% to 31.53%.[2] Semrush itself suggests the higher average may reflect informational intent rather than causation.

Seer: CTR fell through 2025, then partly recovered

Seer tracked 53 brands, 5.47 million queries and 2.43 billion organic impressions from January 2025 to February 2026. Organic CTR on queries showing an AI Overview fell from 3.19% in January 2025 to 1.31% in December 2025, then rose to 2.36% in February 2026.[6]

For informational queries across 2025, the average organic CTR was 2.07% when the brand was cited in the Overview, 0.94% when it was not, and 3.35% when no Overview appeared. Seer describes this as cited pages getting 120% more clicks per impression than uncited ones, but 38% fewer than queries with no Overview.[6]

Seer lists its own caveats. It cannot claim causation, because stronger brands are also more likely to be cited. One account held 47% of the "not cited" impressions at a 0.20% CTR; without it, that segment's CTR is about 1.61%.[6] Using that figure, the cited advantage would be roughly 29% rather than 120% (our arithmetic from Seer's published numbers).

What Google says

Google says it is sending "billions of clicks to websites every week" through AI features in Search.[12] Its site-owner documentation says clicks from results pages with AI Overviews are "higher quality," meaning users are more likely to spend more time on the site.[9] Google has not published the underlying click rates, so these are company statements, not comparable data.

Our reading

The studies agree on one point: being cited in an Overview beats being on the same results page without a citation. They disagree on whether Overviews reduce clicks overall, and the methods explain why. Pew compares different searches. Semrush compares the same keywords before and after. Seer tracks one client cohort with a static label. Read your own data before applying any of these to forecasts.

Who gets cited in AI Overviews

Overlap with top-10 rankings: two studies, very different answers

Ahrefs analyzed 863,000 keyword results pages and 4 million AI Overview URLs. It found 37.9% of cited URLs also appeared in the first 10 blocks of the same results page, counting ads and SERP features as blocks. With blue links only, 37.1% ranked in the top 10 and 36.7% did not rank in the top 100. Ahrefs compares this with about 76% in its July 2025 study. It suggests the drop may reflect query fan-out playing a bigger role in source selection after AI Overviews moved to Gemini 3.[7]

BrightEdge reported that only about 17% of sources cited in AI Overviews also ranked in the organic top 10, and that this held flat between February and July 2025.[5]

For mid-2025, Ahrefs says about 76% and BrightEdge says about 17%. The studies use different keyword sets and parsers. Ahrefs also counts SERP features in its first test and says it improved its parsing between studies. Neither page gives enough detail to reconcile the two, so we report both rather than choose.

Which domains and page types appear

Pew found Wikipedia, YouTube and Reddit were the most cited sources, together 15% of AI summary links. Government (.gov) sites made up 6% of summary links against 2% of standard results.[1] Ahrefs, using its Brand Radar data, names YouTube as the most-cited domain in AI Overviews.[7] Conductor lists blog, video, article, news and product pages as the most-cited page types.[4]

Our reading

If ranking well no longer predicts a citation reliably, rank tracking alone will miss part of your exposure. Citation tracking at the URL level shows which of your pages, and which third-party pages, Google actually uses for your queries.

How big is the audience?

Alphabet said in July 2025 that AI Overviews had over 2 billion monthly users across more than 200 countries and territories and 40 languages. It also said Overviews were driving over 10% more queries for the types of queries that show them.[11]

In July 2026, Alphabet said AI Mode had passed 1 billion monthly active users since its global expansion the previous October. It also said AI Overviews and AI Mode had been brought together "into one seamless Search experience."[12] These are company-reported figures and do not say what share of searches show an Overview.

What Google tells site owners to do

Google's guide to generative AI features says standard SEO still applies, because these features rest on its core ranking systems. To appear as a supporting link, a page must be indexed and eligible to show with a snippet. The guide also says a site must be included in Search generative AI features in Search Console to be eligible.[8]

The guide names AEO and generative engine optimization as common terms, then lists "hacks" you can ignore for Google Search: llms.txt and other AI-specific files, "chunking" content, rewriting content just for AI, seeking inauthentic mentions, and adding special structured data.[8] Google also notes that AI Overviews show only when its systems find them additive, "and as such, often don't trigger."[9]

For measurement, Search Console's generative AI performance report covers AI Overviews and AI Mode. As of August 31, 2026, it was available to all websites worldwide. The help page describes impressions by page, country, device and date.[10] It does not describe a click metric, and its listed dimensions do not include the search query.

How to track AI Overview presence for your own queries

Our reading

Third-party studies tell you the market's direction. Your exposure depends on your own query mix. A practical setup:

1. Build a query set that mirrors your demand. Split it by intent and by length, since both move the trigger rate sharply. Include comparison and question queries; Seer's data puts them at the top of the trigger list.
2. Record presence, citation and URL on a schedule. For each query and date, store whether an Overview appeared, whether your domain was cited, and which URLs were cited. Keep competitors' citations too, so you can compute a share of voice with a stated denominator.
3. Track clicks and impressions separately. Seer's October 2025 data shows why: cited impressions more than doubled while clicks stayed flat, so CTR fell without any loss of traffic.[6]
4. Add Search Console's generative AI report. It shows Google's own impression counts for your pages, which a sampled query set cannot.
5. Connect it to visits. Pair Overview data with your AI referral traffic and conversions, so a citation change can be checked against what happened on the site.

CiteLadder's AI visibility tracking covers AI Overviews alongside ChatGPT, Claude and Gemini. It analyzes the sources each answer cites, and runs Site Health checks. Its source code is public under AGPL-3.0 for self-hosting, and a hosted version runs at citeladder.com.[13] Any tool you use, including ours, should let you open the raw observation behind each number.

Frequently asked questions

What percentage of Google searches have AI Overviews?

It depends on the dataset. Pew found 18% of real US searches in March 2025. Semrush found 15.69% of its keyword database in November 2025. Conductor found 25.11% of its US index in autumn 2025. BrightEdge found about 48% of its tracked keywords in February 2026. Always quote the source, panel and date together.

Do AI Overviews reduce clicks to websites?

Pew found fewer result clicks when a summary appeared (8% vs 15% of visits). Semrush found zero-click rates fell slightly for keywords after they gained an Overview. Seer found lower CTR on Overview queries through 2025, a partial recovery in early 2026, and higher CTR for cited pages than uncited ones. The direction depends on method and query mix.

Do I need to rank in the top 10 to be cited in an AI Overview?

Not necessarily. Ahrefs found about 38% of cited URLs in the top 10 of the same results page, and BrightEdge reported about 17% overlap with the organic top 10. Both show many citations come from pages outside the top 10.

Does Google recommend special AI optimization for AI Overviews?

No. Google's guide says standard SEO practices apply, and that llms.txt, content chunking, AI-only rewrites and special structured data are not needed for Google Search.

Sources

All sources read on 20 October 2026.

1. Pew Research Center, Do people click on links in Google AI summaries?, 22 July 2025.
2. Semrush, Semrush AI Overviews Study, refreshed version with data through November 2025.
3. Semrush, AI Overviews are expanding across commercial intent search, data November 2025 to April 2026.
4. Conductor, The 2026 AEO / GEO Benchmarks Report, AI Overview data 15 September to 12 October 2025.
5. BrightEdge, AI Overviews at the One-Year Mark: Presence, Size, and What They're Citing, 12 February 2026.
6. Seer Interactive, AIO Impact on Google CTR: 2026 Update, April 2026.
7. Ahrefs, Update: 38% of AI Overview Citations Pull From The Top 10, 2 March 2026.
8. Google Search Central, Optimizing your website for generative AI features on Google Search, last updated 10 July 2026.
9. Google Search Central, AI features and your website, last updated 10 December 2025.
10. Google Search Console Help, Generative AI performance report (Search).
11. Google, Q2 earnings call: CEO's remarks, 23 July 2025.
12. Google, Q2 2026 earnings call: Remarks from our CEO, 22 July 2026.
13. CiteLadder source code on GitHub (AGPL-3.0).