AI SEO Statistics 2026: 130+ Data Points on AI Search, Citations & Zero-Click (July Update)

Search changed shape in 2026. People still Google, but a growing slice of every buying decision now runs through ChatGPT, Gemini, Perplexity and Google’s own AI Overviews before a human ever clicks a blue link. If you sell software, get found by an AI answer, or just try to earn traffic, the numbers below are the ones that matter this year.

We pulled together 130+ AI SEO statistics for 2026 and cited every single one to its source, with the month it was published. No stat goes on this page unless we could trace it to the study, survey or dataset it came from. Where a figure is contested, we say so.

This is a living page. We refresh it as new studies land, so the figures reflect what is current, not what was true a year ago.

68%

of Google searches ended without a click in the first four months of 2026, up from 60% in 2024

SparkToro, 2026

What’s inside

Key takeaways
AI search adoption and usage
ChatGPT and LLM platform statistics
Google AI Overviews statistics
Google AI Mode statistics
Zero-click search and CTR impact
Brand mentions and citations in AI answers
Top cited domains and content types
AI referral traffic and conversions
B2B software buyers and AI search
Content optimization for AI search (GEO)
AI bots, crawlers and agents
Ads in AI search

How we compiled this, our sources and method

What this page is. A curated, cited roundup of third-party AI search statistics published in 2025 and 2026. The Topickz research desk collected, checked and organized these figures. We did not run these studies ourselves, and we never present another firm’s data as our own.

Sourcing bar. Every stat links to a source and carries a publication month. We prioritized primary sources: the study, survey or dataset that first reported the figure. Where the primary was paywalled, we cite a reputable secondary report (Semrush, Ahrefs, Search Engine Journal, Search Engine Land) and label it as such.

What we dropped. Figures we could not trace to a real, fetchable source were left out, even popular ones. Several widely-repeated numbers (a “93% zero-click under AI Mode” claim, a “schema markup = 2.3x more AI answers” claim) failed verification and are not on this page. Where two credible sources disagree, we show both rather than pick one.

Freshness. We update this page as new research is published. Figures dated 2024 are included only when they remain the landmark reference (for example, Gartner’s 25%-decline forecast).

Disclaimer. This is general market analysis, not advice on any specific vendor. Topickz may earn affiliate commissions from some tools we cover, and commissions never influence our data or analysis. See our editorial standards and affiliate disclosure .

Key takeaways

ChatGPT reached 900 million weekly active users in February 2026 and crossed 1 billion monthly app users by June, the fastest app in history to that milestone. (TechCrunch , February 2026)
Google AI Overviews now reach 2.5 billion monthly users and AI Mode passed 1 billion within a year of launch. (Google , May 2026)
68% of Google searches ended without a click in early 2026, up from 60% in 2024. (SparkToro , 2026)
AI Overviews cut the click-through rate of the #1 organic result by 58%. (Ahrefs , February 2026)
51% of B2B software buyers now start research with an AI chatbot rather than a search engine, up from 29% eleven months earlier. (G2 , April 2026)
89% of unbranded prompts are answered from third-party sources, not a brand’s own site. (Bain & Company , April 2026)
63% of roughly 400 million AI citations point to listicles, and Forbes ranked top-three on every model tested. (Evertune , May 2026)
ChatGPT referral traffic converts at 7.1%, second only to paid search. (Similarweb , 2026)

AI search adoption and usage

44% of U.S. adults have ever used ChatGPT, up from 34% in 2025 and 18% in 2023. (Pew Research , June 2026)
49% of U.S. adults use AI chatbots overall, up from 33% in 2024. (Pew Research , June 2026)
24% of U.S. adults use AI chatbots daily, with 4% using them almost constantly. (Pew Research , June 2026)
60% of Americans read AI-generated search summaries when they appear. (Pew Research , June 2026)
Adults under 50 are twice as likely to use ChatGPT as those 50 and older, 57% versus 28%. (Pew Research , June 2026)
Platform reach beyond ChatGPT: Gemini 24%, Copilot 17%, Meta AI 14%, Grok 8%, Claude 6% of U.S. adults. (Pew Research , June 2026)
64% of U.S. teens aged 13-17 have used an AI chatbot, with search and schoolwork the top uses. (Pew Research , December 2025)
50% of consumers now use AI-powered search in 2026. (HubSpot , April 2026)
86.4% of marketing teams use AI in some workflow, up from 67% in 2025 and 41% in 2024. (HubSpot , April 2026)
34% of Gen Z (16-27) use AI chatbots for search, higher than any other age group. (Search Engine Land , July 2025)
79% of people trust AI search engines and 77% trust AI chatbots, close to Google’s 86%. (Search Engine Land , July 2025)
Gartner forecasts traditional search volume will fall 25% by 2026 as users shift to AI chatbots and virtual agents. (Gartner , February 2024)

ChatGPT and LLM platform statistics

ChatGPT reached 900 million weekly active users as of February 2026, up from 800 million in October 2025 and 400 million in February 2025. (TechCrunch , February 2026)
OpenAI disclosed 50 million paying subscribers alongside the 900M figure. (TechCrunch , February 2026)
ChatGPT crossed 1 billion monthly active app users in June 2026, the fastest app in history to the milestone. (Reuters / Sensor Tower , June 2026)
ChatGPT processes 2.5 billion prompts daily, roughly 912 billion a year. (Ahrefs , February 2026)
ChatGPT’s daily prompt volume equals about 18% of Google’s 13.7 billion daily searches. (Ahrefs , February 2026)
An estimated 65% of ChatGPT usage is “search” activity that would otherwise have gone to Google. (Ahrefs , February 2026)
Google still sends 190x more traffic to websites than ChatGPT, a 39.98% versus 0.21% referral share. (Ahrefs , February 2026)
The Gemini app grew from 400 million to over 900 million monthly users between I/O 2025 and I/O 2026. (Google , May 2026)
ChatGPT web visits grew about 84% between September 2024 and March 2026. (Similarweb , May 2026)
Over the same period, Gemini traffic grew roughly 9x and Claude about 770%. (Similarweb , 2026)
Users aged 18-34 make up 53% of ChatGPT’s audience. (DemandSage , July 2026)
The U.S. drives 18.5% of ChatGPT traffic, followed by India at 9.8% and Brazil at 5.6%. (DemandSage , July 2026)
Google holds roughly 77-80% of global digital queries and ChatGPT about 17-18%. (First Page Sage , 2026)
Google search revenue still grew 19% year over year to $60.4 billion in Q1 2026, despite rising zero-click behavior. (Alphabet earnings , 2026)

Google AI Overviews statistics

AI Overviews appear on 65% of personalized U.S. searches and 49% of non-personalized ones. (Xponent21 / Advanced Web Ranking , March 2026)
AI Overviews now reach 2.5 billion monthly users, per Sundar Pichai. (Google , May 2026)
Half of all Google searches now include an AI Overview. (HubSpot , April 2026)
AI Overviews trigger on 88%+ of informational queries versus 8.7% commercial and 1.8% transactional. (Semrush , 2026)
68%+ of AI Overview triggers happen on queries with 100 or fewer monthly searches. (Semrush , 2026)
95% of AI Overview keywords show little or no paid commercial value. (Semrush , 2026)
Only 4.79% of branded keywords trigger an AI Overview. (Amsive , 2026)
Healthcare queries trigger AI Overviews 88% of the time and finance 78%, the highest of any verticals. (BrightEdge , 2026)
About 18% of Google searches produced an AI summary in March 2025, and 58% of adults saw at least one that month. (Pew Research , July 2025)
Wikipedia’s human pageviews fell about 8% in 2025, partly attributed to AI answer features. (Forbes , May 2026)

Google AI Mode statistics

Google AI Mode surpassed 1 billion monthly active users within a year of launch. (Google , May 2026)
Only 0.34% of U.S. searches actually reached AI Mode between January and April 2026, so AI Overviews, not AI Mode, drive most zero-click growth. (SparkToro / Search Engine Land , 2026)
AI Mode traffic grew from 1,600 visits in January 2025 to 38.2 million in December 2025, still about 0.01% of total traffic. (Semrush , April 2026)
AI Mode cites about 9 domains per query on average versus 7.7 for AI Overviews. (SE Ranking , March 2026)
Google.com accounts for 17.42% of citations inside AI Mode, a sign the engine cites itself heavily. (SE Ranking , February 2026)
AI Mode and AI Overviews share only 13.7% of cited URLs despite 86% semantically similar answers. (Ahrefs via Search Engine Journal , 2026)
Google’s token processing grew 7x year over year, from 480 trillion to 3.2 quadrillion. (Google , May 2026)
Only about 12% of AI Mode citations match the top 10 organic results, versus 38% for AI Overviews. (Moz via Search Engine Journal , 2026)

Zero-click search and CTR impact

68.01% of Google searches ended without a click in the first four months of 2026, up from 60.45% in 2024. (SparkToro / Search Engine Land , 2026)
For every 1,000 U.S. Google searches, only 276 clicks now reach the open web, down from 374 in 2024. (SparkToro / Search Engine Land , 2026)
AI Overviews cut the click-through rate of the #1 organic result by 58%, based on 300,000 keywords. (Ahrefs , February 2026)
CTR loss by position: position 2 down 50.8%, position 3 down 46.4%, position 4 down 38.8%, position 10 down 19.4% when an AI Overview is present. (Ahrefs , February 2026)
Organic CTR on AI Overview queries fell from 1.76% to 0.61%, a 65% drop, between June 2024 and September 2025. (Seer Interactive , 2025)
Organic CTR bottomed at 1.31% in December 2025, then rebounded 80% to 2.36% by February 2026, a sign users are adapting. (Seer Interactive , 2026)
Being cited inside an AI Overview earns 120% more organic clicks than not being cited. (Seer Interactive , 2026)
Amsive measured an average 15.49% CTR decline from AI Overviews, worsening to 27.04% for pages outside the top three. (Amsive , 2026)
Google users click a link just 8% of the time when an AI summary appears, versus 15% without one. (Pew Research , July 2025)
Only 1% of visits click a link inside the AI summary itself. (Pew Research , July 2025)
Users ended their browsing session 26% of the time after a page with an AI summary, versus 16% without. (Pew Research , July 2025)
Google disputed Pew’s methodology as “flawed” and not representative of overall traffic. (9to5Google , July 2025)

Brand mentions and citations in AI answers

ChatGPT cites an average of 15 sources per response, versus just 3 for Gemini, across 126 million analyzed prompts. (Semrush , June 2026)
62% of AI citations are “ghost citations” where a source is linked but the brand is never named. (Semrush / Kevin Indig , June 2026)
ChatGPT cites a brand’s page 87% of the time but names the brand only 20.7% of the time; Gemini mentions brands 83.7% of the time but cites only 21.4%. (Semrush , June 2026)
Brand-owned domains make up 52.5% of AI citations and community platforms 47.5%, across more than 1 million citations. (Otterly.ai , February 2026)
Brand-domain citation rates split by engine: AI Overviews 59.8%, ChatGPT 44.7%, Perplexity 28.9%. (Otterly.ai , February 2026)
89% of unbranded prompts are fulfilled from third-party sources, not brand-owned content, ranging 76-99% by topic. (Bain & Company , April 2026)
85% of brand mentions in AI answers come from third-party pages, not the brand’s own domain. (AirOps , 2026)
91% of AI citations appear in only one engine, so visibility rarely transfers across ChatGPT, Gemini and Perplexity. (Kevin Indig, Growth Memo , April 2026)
Only 11% of domains are cited by both ChatGPT and Perplexity, across 680 million citations. (Profound , June 2025)
On Perplexity, 64% of cited URLs are never cited again, and the top 6% of URLs account for nearly half of all its citations. (Peec AI , July 2026)
43.2% of pages ranking #1 on Google also get cited by ChatGPT, 3.5x the rate of pages beyond the top 20. (Kevin Indig, Growth Memo , March 2026)

AI referral traffic and conversions

Outbound referral traffic from ChatGPT to the web grew 206% in 2025. (Semrush , April 2026)
Over 30% of all ChatGPT referral traffic goes to just 10 domains, and over 20% goes to Google itself. (Semrush , April 2026)
AI-system traffic grew 66% during 2025, from 462 million to 767 million monthly visits, while organic search grew 2.38%. (Semrush , April 2026)
AI-referred traffic to U.S. retail sites grew 138% year over year in May 2026. (Adobe Digital Insights , June 2026)
AI-referred shoppers convert 42% better than non-AI shoppers, spend 53% more time on-site and view 23% more pages. (Adobe Digital Insights , June 2026)
ChatGPT referral traffic converts at 7.1%, second only to paid search at 7.8%, ahead of direct, organic, social and email. (Similarweb , 2026)
After ChatGPT made links clickable on May 7, 2026, tracked referral traffic rose 157.7% week over week, and homepage referrals surged 354.7%. (Similarweb , 2026)
A peer-reviewed study of 973 sites and $20 billion in revenue found ChatGPT-referred traffic was under 0.2% of all traffic, yet made up over 90% of LLM-referral sessions. (Kaiser & Schulze, Marketing Science , April 2026)
LLM-sourced sessions rose 527% year over year across 19 tracked properties, while organic search fell only about 2.5%. (Previsible , 2026)
All AI chatbots combined still send just 0.29% of search referral traffic, so volume remains small even as quality is high. (The Stacc , 2026)
Consumer sentiment that AI search is “more helpful” than traditional search fell from 82% in 2025 to 54% in 2026, while AI skeptics grew from 3% to 17%. (Fractl / Search Engine Land , 2026)

B2B software buyers and AI search

94% of B2B buyers used AI during their most recent purchase, and AI beat vendor websites, reps and experts as the most-meaningful research source by a 2x margin. (Forrester , January 2026)
B2B buyers use AI to compare vendors (55%), research products (54%) and build internal business cases before contacting a vendor (47%). (Forrester , January 2026)
A typical B2B buying decision now involves 13 internal stakeholders and 9 external influencers. (Forrester , January 2026)
51% of B2B software buyers now start research with an AI chatbot more often than a search engine, up from 29% eleven months earlier. (G2 , April 2026)
71% of B2B buyers rely on AI chatbots for software research, up from 60%. (G2 , April 2026)
69% of B2B buyers chose a different vendor based on AI guidance, and 33% bought from a vendor they had never heard of. (G2 , April 2026)
85% of B2B buyers view a vendor more favorably when an AI chatbot mentions it, and 45% cite review-site citations as the top trust signal. (G2 , April 2026)
53% of B2B buyers find AI-chatbot research more productive than traditional search, up from 36%. (G2 , April 2026)
63% of B2B buyers name ChatGPT as their dominant AI research tool, across 1,076 decision-makers surveyed. (G2 , April 2026)
44% of U.S. online buyers now start their journey in an LLM or split research between AI and traditional search. (Bain & Company , April 2026)

Content optimization for AI search (GEO)

Adding statistics, quotations and cited sources lifted AI visibility by 30-40% in the landmark Generative Engine Optimization study. (Princeton, Georgia Tech, Allen Institute for AI , 2024)
67% of ChatGPT’s top 1,000 cited pages come from original research, first-hand data or academic sources. (Ahrefs , April 2026)
Pages with natural-language URL slugs had an 89.78% ChatGPT citation rate, versus 81.11% for opaque slugs. (Ahrefs , April 2026)
AI assistants cite content averaging 1,064 days old, about 25.7% fresher than Google organic’s 1,432 days, across roughly 17 million URLs. (Ahrefs , July 2025)
Adding JSON-LD schema produced no meaningful citation lift in a controlled test (down 4.6% on AI Overviews, up 2.2% on ChatGPT), challenging a common assumption. (Ahrefs , May 2026)
Branded web mentions correlate with AI Overview visibility at 0.664, versus 0.218 for backlinks, across 75,000 brands. (Ahrefs via Semrush , June 2026)
Pages over 20,000 characters average 10.18 citations, versus 2.39 for pages under 500 characters. (Kevin Indig, Growth Memo , March 2026)
Sites with a presence on review platforms like G2, Capterra and Trustpilot have 3x higher odds of being cited. (SE Ranking , November 2025)
Domains with 32,000+ referring domains are 3.5x more likely to be cited by ChatGPT than domains with 200 or fewer. (SE Ranking , November 2025)
76.4% of top-cited pages with update metadata were refreshed within the last 30 days, a strong freshness signal. (Ahrefs , September 2025)

AI bots, crawlers and agents

Bots generated 57.5% of all HTTP requests to web content in May 2026, passing humans for the first time. (Cloudflare Radar , May 2026)
AI crawlers made up 20.3% of verified bot traffic, rising to 26.7% when AI-search bots are included. (Cloudflare Radar , May 2026)
Training crawls account for 52.3% of AI crawler requests, while real-time user-action fetches are just 2.6%. (Cloudflare Radar , June 2026)
Among AI-adjacent bots, Googlebot leads at 27.26% of requests, ahead of GPTBot at 11.48% and ClaudeBot at 9.73%. (Cloudflare Radar , May 2026)
AI crawlers made 3.6x as many requests as traditional search crawlers combined, with ChatGPT-User alone outpacing Googlebot, Amazonbot and Bingbot together. (Alli AI via Search Engine Journal , 2026)
Crawl-to-referral ratios stayed lopsided: Anthropic crawled about 38,066 pages per referral sent, OpenAI about 1,091, and Google just 5.4. (Cloudflare , August 2025)
TollBit partner sites got one AI crawl visit for every 31 human visits. (TollBit , 2026)
Browser agents made up 71% of agentic traffic in April 2026, led by Perplexity’s Comet at 48%. (HUMAN Security , April 2026)

Ads in AI search

OpenAI began rolling out ChatGPT ads on February 9, 2026, starting with U.S. Free and Go tiers and expanding to more markets by May. (TechCrunch , February 2026)
U.S. AI ad spend is forecast to grow from $32.03 billion in 2026 to $68.25 billion by 2030. (eMarketer via PPC Land , June 2026)
ChatGPT and standalone chatbots will earn under $1 billion in U.S. ad revenue in 2026, rising to just over $5 billion by 2030. (eMarketer via PPC Land , June 2026)
Over 80% of 2026 AI ad spend lands adjacent to AI content, such as search ads next to AI Overviews, not inside chatbot conversations. (eMarketer via PPC Land , June 2026)
Ads in Google AI Overviews are now live in 12 markets including the U.S., Canada, India and Indonesia. (Google Ads Help , 2026)
Google unveiled new Gemini-powered ad formats at Marketing Live 2026 as AI Mode queries doubled every quarter. (Google , May 2026)

What these AI SEO statistics mean for 2026

Two forces are pulling in opposite directions, and both are on this page. Search is getting bigger, not smaller. ChatGPT, Gemini and Google’s AI features together reach billions of people, and adoption is still climbing. At the same time, the click is getting rarer. Zero-click hit 68%, AI Overviews cut CTR by more than half on the top result, and users trust the summary enough to stop there.

The winners are the brands that get cited inside the answer. Citation earns 120% more clicks on Google, and 89% of unbranded prompts get answered from third-party sources, which means the game is now about being the source AI reaches for, not just ranking a page. Reviews, original data, statistics-rich content and a strong brand-mention footprint are what correlate with citation.

For anyone selling software, the buyer stat is the one to sit with. 51% of B2B buyers now open an AI chatbot before Google, 33% bought from a vendor they had never heard of, and 85% think more highly of a vendor an AI names. That is the whole reason this shift matters. The AI answer is the new shortlist.

We keep this page current. If a figure here is out of date or you have a study we should add, tell us through our editorial standards page.

Written by

Vignesh Sampath Kumar

Topickz Editorial Team · Review methodology