AI search statistics.
The numbers, in context.
AI use is growing. A citation still does not guarantee a visit. These figures track adoption, search clicks and AI referrals, with the source, date and limits beside each one.
Looking for the takeaway? Read what these AI search trends mean for your site.
How many people use AI search?
The platforms report large audiences. Those figures count users, not searches, website visits or people in your market. Weekly and monthly totals should stay separate.
ChatGPT weekly active users
OpenAI reported more than one billion worldwide on August 31, 2026. That includes writing, coding and other uses alongside search.
OpenAI · August 31, 2026AI Mode monthly active users
Google reported this global milestone on July 22, 2026. AI Mode is its conversational search experience. This is not the user count for AI Overviews.
Google · July 22, 2026These audiences overlap. Adding them would count some people twice and mix weekly activity with monthly activity. Neither company figure tells you how often buyers ask about your category.
How often does a search send a click?
A zero-click search ends without a click. It can happen with an AI summary, an ordinary instant answer or a search that someone abandons. It is not a count of clicks taken by AI.
US Google searches with no click
SparkToro's analysis of Similarweb data covers January through April 2026, on desktop and mobile web. It excludes the Google mobile app.
SparkToro / Similarweb · June 8, 2026Earlier SparkToro studies used different data providers. Their percentages are not a matched-panel time series.
Lower estimated CTR for the top page
Ahrefs compared 300,000 keywords using desktop Search Console data from December 2023 and December 2025. The estimate concerns the top-ranking page when an AI Overview appears.
Ahrefs · February 4, 2026A modeled comparison, not a measured 58% traffic loss for every website.
Traditional-result clicks in Pew's study
Pew observed traditional-result clicks on 8% of visits with an AI summary, compared with 15% without one.
Pew Research Center · July 22, 2025Clicked an AI summary's source
In the same study, visits to search pages with an AI summary led to a click on one of its source links about 1% of the time.
900 US adults' March 2025 browsing; results reconstructed in April. Different queries can produce different behavior, so the comparison does not isolate cause.
Read Pew's method and resultsTo inspect your own click-through rates, try the free Zero-Click Report. Its comparison highlights pages to investigate. It cannot prove an AI Overview caused a particular gap.
How common are AI Overviews?
There is no single percentage for the whole web. The answer depends on the country, date and keywords sampled. This historical series keeps one study's method together.
Keywords showing AI Overviews in 2025
6.49% in January, 24.61% in July and 15.69% in November 2025, across more than 10 million keywords.
Semrush · December 2025Informational share of AIO queries
The share of queries triggering an AI Overview that were informational fell between January and October 2025. This describes the mix of AIO queries, not their share of all searches.
Zero-click rate in a separate comparison
Semrush found a small decline in zero-click rate when it compared the same keywords before and after an AI Overview appeared. That is a reason to avoid attributing every missing click to AI.
Semrush · methodology and findingsWhere do AI citations come from?
Ranking and citation are related, but they are not interchangeable. Keep the search engine, ranking definition and study sample attached to any overlap figure.
Organic positions of AI-cited URLs
37.1% in the organic top ten; 26.2% at positions 11–100; 36.7% outside the top 100. Ahrefs analyzed 863,000 search result pages and 4 million cited URLs.
Ahrefs · March 2, 2026The study's 37.9% headline counts all result blocks. The organic-only measure is 37.1%. Parsing also changed since the 2025 study, so we do not chart the two as a clean before-and-after.
Organic overlap in BrightEdge's sample
BrightEdge reported this overlap across nine industries by September 2025, up from 32.3% in May 2024. Its sample and definition differ from Ahrefs, so this is not another point on the same chart.
BrightEdge · data through September 2025Google says its AI features can run related searches to assemble an answer. A page can therefore be useful beyond the original query. Read how AI assistants choose citations for the mechanism.
What does GEO research actually show?
Generative engine optimization means improving how content appears in AI-generated answers. The research offers ideas to test, rather than a guaranteed lift.
visibility improvement in the GEO paper's experimental benchmark.
Aggarwal and colleagues tested changes including relevant statistics, quotations and source citations. Results varied by domain and method. The measured outcome was visibility inside generated answers, not website traffic or sales.
Aggarwal et al. · KDD 2024This is a historical experiment. It does not establish a 40% gain in today's ChatGPT, Perplexity or Google results.
For Google, the practical starting point remains accessible, useful, indexable content. Its official guidance on AI features says no special AI markup or schema is required. Our GEO vs SEO guide explains how the work fits together.
What happens after an AI referral?
Adobe's latest report reviewed here covers July 2026. Its retail findings are encouraging, but the travel comparison shows why “AI traffic converts better” needs a qualifier.
US retail AI referral growth
July 2026 compared with July 2025. This counts visits arriving from AI sources, not AI's share of all retail traffic.
Adobe · August 19, 2026Retail conversion advantage
AI-referred visits converted 60% better than non-AI traffic in July 2026. This is a relative difference in conversion rate, not a 60% purchase rate.
Adobe · July 2026 retail dataTravel conversion difference
AI-referred visits to US travel sites converted about 1% worse than non-AI traffic that month. The retail advantage does not apply to every sector.
Adobe · July 2026 travel dataThese are sector benchmarks. Use your own referral, trial and sales data before forecasting revenue from AI search.
Turn the benchmarks into a check on your site.
Keep three things separate in your reporting. Does AI mention your brand? Does it cite a page? Does anyone visit and become a customer? Improving one does not prove the others moved.
ContextBolt SEO lets you inspect live answers from ChatGPT, Gemini, Claude and Perplexity, compare them with your Google Search Console performance, and keep the findings on your SEO Board. Historical mention data covers ChatGPT and Google AI; individual answer checks cover the four named platforms.
Start with a buying question your customers actually ask. Check who gets recommended, open the cited page, and choose one specific improvement. The companion article walks through what to measure, and our AI visibility tools comparison explains the buying options.
7-day trial with a 100-credit cap and card required. Then $35/month for 1,000 credits. Cancel before the trial ends to avoid the charge.
Common questions about AI search statistics.
What percentage of Google searches end without a click?
SparkToro reported 68.01% for US Google searches in January through April 2026, using Similarweb desktop and mobile web data. The Google mobile app was excluded. This measures all zero-click searches in that panel, not just searches showing an AI Overview, and is not a worldwide rate.
How many people use ChatGPT and Google AI Mode?
OpenAI reported more than 1 billion weekly active ChatGPT users on August 31, 2026. Google reported more than 1 billion monthly active AI Mode users on July 22, 2026. These are different reporting periods and overlapping audiences. ChatGPT usage also includes tasks other than search, so the counts cannot be added.
Do AI Overviews reduce website clicks?
Several studies find fewer clicks when AI summaries appear. Pew observed traditional-result clicks on 8% of visits with a summary versus 15% without one. Ahrefs estimated 58% lower CTR for the top-ranking page in its desktop sample. Neither figure predicts the loss on a particular site; query intent and study design matter.
Does a high Google ranking guarantee an AI citation?
No. Ahrefs found 37.1% of cited URLs in its March 2026 study ranked in the organic top ten for the same query. Its roughly 38% headline includes other search-result blocks. Google can retrieve related queries when building an AI answer, so being absent from the original top ten does not mean SEO is irrelevant.
Does AI referral traffic convert better?
It depends on the sector and period. Adobe found AI referrals converted 60% better than non-AI traffic on US retail sites in July 2026. For travel sites that month, conversion was about 1% lower. A retail benchmark is not a forecast for a software business, publisher or individual website.
Can GEO guarantee a 40% visibility increase?
No. The KDD 2024 GEO paper reported improvements of up to 40% in an experimental benchmark, with results varying by domain and method. That is a measured research result, not a promise about current ChatGPT or Google responses, website traffic or revenue. Test changes against your own questions and outcomes.
Sources, dates and limits.
Reviewed September 14, 2026. This is a curated reference, not original ContextBolt research. We link to the organization reporting each result. Company user totals, panel estimates, controlled experiments and official guidance are different kinds of evidence.
- SparkToro / SimilarwebUS zero-click searchesJune 8, 2026
US desktop and mobile web panel, January–April 2026. Excludes the Google mobile app.
- OpenAIChatGPT weekly active usersAugust 31, 2026
Company-reported global weekly active users. Includes all uses of ChatGPT, not only search.
- GoogleAI Mode monthly active usersJuly 22, 2026
Company-reported global monthly active users. AI Mode and AI Overviews are different features.
- Pew Research CenterClicks with and without AI summariesJuly 22, 2025
Browsing by 900 US adults in March 2025; search results collected April 7–17. Observational study.
- AhrefsAI Overview click-through rate studyFebruary 4, 2026
300,000 keywords; aggregated desktop Search Console data, December 2023 and December 2025. Modeled comparison for the top-ranking page.
- SemrushAI Overviews in 2025December 2025
10M+ keywords for prevalence, January–November 2025. Separate 200K+ keyword sample for zero-click trends.
- AhrefsWhere AI Overview citations rankMarch 2, 2026
863,000 search result pages and 4M cited URLs. Organic-only results are reported separately from all result blocks.
- BrightEdgeCitation overlap with organic rankingsData through September 2025
Nine industries monitored from May 2024 to September 2025. Different overlap definition and sample from Ahrefs.
- Aggarwal et al.GEO research, KDD 2024KDD 2024
Experimental generative-engine benchmark. Visibility within an answer, not visits, sales or a guarantee for current engines.
- Adobe Digital InsightsAI referrals to retail and travel sitesAugust 19, 2026
July 2026 US retail and travel data. Traffic growth is year over year; conversion compares AI with non-AI referrals in the same month.
- Google Search CentralAI features and your websiteChecked September 14, 2026
Official eligibility and content guidance for Google AI features. Guidance, not an effectiveness study.
To cite a figure, keep its geography, period and denominator, and link to the original study. You can link to an individual section on this page, too. The review date above tells you when we checked the sources; the study dates tell you when the evidence was collected or published.
This September update replaces older adoption and referral figures, corrects source attributions and separates historical comparisons from current measurements. Older studies stay only where their methods remain useful. Spotted an error? Email [email protected].