AI search is now a real discovery channel: a growing share of people ask ChatGPT, Perplexity, Gemini and Google AI Overviews instead of clicking blue links, and many answers cite only a few sources. The takeaway for businesses is simple. If AI engines cannot understand and quote your pages, you are invisible to those buyers, so structure your content to be cited.
The short version: The AI search statistics for 2026 tell one clear story. A large and growing share of buying decisions now starts with an AI answer instead of a list of links, the click is drying up, and the businesses that get named are mostly the ones earning mentions on trusted sources, not the ones with the prettiest websites. Below are the numbers that made me take this seriously, with what each one means for you. Want to see where you stand against them? Check free with my AI visibility tool.
Why I bothered pulling these together
I am wary of stat-stuffed posts, so I will keep this to the numbers that change what you should do. I last refreshed every number here on 9 October 2026, and each one now names the organisation that published it, plus a few figures from my own site and research. Read them as direction and scale, not gospel to the decimal point. The direction is what matters, and the direction is loud.
The numbers that matter, and what they mean
AI Overviews now sit on roughly 1 in 5 Google searches
Pew Research Center tracked the real Google searches of 900 US adults and found an AI summary on 18% of them, rising to 53% of searches of ten words or more and 60% of searches that start with a question word like who, what or why. Google says AI Overviews reach more than 2 billion people a month (July 2025). And in my own study of 400 live local service searches in the US and UK (October 2026), 88% showed an AI Overview, including every single "how much does it cost" search. What it means for you: the AI answer is increasingly sitting on top of exactly the searches where people are choosing who to buy from.
When an AI Overview shows, the click collapses
This is the one that should get your attention. Seer Interactive's April 2026 update found organic click-through of 2.36% on searches with an AI Overview in February 2026, against 3.82% on searches without one, about 38% lower. That's up from a low of 1.31% (against 3.16%) in December 2025, but still well short of a search with no AI answer. Pew saw the same pattern: people clicked a traditional result in 8% of visits when an AI summary appeared, against 15% when it didn't. What it means: ranking under the AI answer is worth far less than being named inside it. Position one below the fold is still below the fold.
Zero-click searches keep climbing
In Pew's research, people clicked a link inside the AI summary itself in just 1% of visits, and they ended their browsing session right there on 26% of pages with an AI summary, against 16% of pages without one. Meanwhile Google says AI Mode, its fully conversational search, passed 1 billion monthly users in July 2026. What it means: more and more, the answer happens on the results page, and the visit to your site never happens. Your name in the answer is the win, with or without the click.
ChatGPT is huge, and it is not the only one
OpenAI said in February 2026 that ChatGPT had reached 900 million weekly active users, and in July 2026 that its models reach more than one billion active users across its products. Statcounter's September 2026 figures give ChatGPT 80.5% of AI chatbot referrals to websites worldwide, with Google Gemini second at 10.9%, Perplexity at 5.9%, Microsoft Copilot at 1.8% and Claude under 1%, and Google says its Gemini app has 950 million monthly users (July 2026). What it means: your buyers are spread across several engines, and you can be named by one and missing from another for the same question. Checking one is not checking your visibility. On Lilach Bullock's own site, Bing's AI Performance report shows AI citations rose about four-fold between late July and mid September 2026, and visits referred by ChatGPT grew more than 50-fold between July and September 2026. By September, AI assistants sent 19% of all visits to my site, up from under 2% in July, and ChatGPT alone sent 91% of those AI visits (Google Analytics 4).
Perplexity really does send clicks
Perplexity puts its sources right in front of you, numbered and clickable, so a citation there is far more likely to turn into a visit. Statcounter's September 2026 data puts Perplexity third for AI chatbot referrals to websites worldwide, at 5.9%, behind ChatGPT and Gemini, and on my own site it was the second-biggest AI referrer in September 2026, after ChatGPT. What it means: a citation on Perplexity is not just credibility, it is traffic. Worth targeting on its own.
And the big one: most AI citations come from earned media
Here is the figure I keep coming back to. Muck Rack's May 2026 Generative Pulse report, which analysed more than 25 million links cited by ChatGPT, Claude and Gemini, found around 84% of AI citations come from earned media, not from a brand's own pages. Journalism alone made up 27% of cited sources, and paid or advertorial content just 0.3%. What it means, and I cannot say this loudly enough: you do not get named mainly by polishing your own website. You get named by being mentioned on the sources the engines trust. That is the whole game, and the numbers say it plainly. If you want to start earning those mentions, my guest posting statistics study counted 3,225 websites that accept guest posts across 37 niches.
Here's the complete GEO and AEO guide if you want every step in one place.
What these AI search statistics add up to
Lilach Bullock's reading of these statistics comes down to three things.
- The AI answer is eating the click, on the exact searches that matter for buying.
- Being named inside the answer beats ranking under it, by a wide margin.
- The way you get named is mostly earned media, the trusted mentions, not your own pages.
I did not need convincing, because this is the work I have done for twenty-three years, getting people into the press. But if you did, the numbers are now doing the convincing for me.
How this fits the bigger picture
These statistics are the case for generative engine optimisation. Start with what generative engine optimisation is, and since the data points so hard at earned media, read how to get featured on the sources AI trusts. If the numbers worry you, the first move is to see where you stand, and if you'd rather hand the work over, that's what my AEO services are for.
The numbers behind this are in my AI Overviews study: 300 live searches, 93% with an AI answer, and who Google cites.
FAQ
What percentage of Google searches have AI Overviews? Pew Research Center found AI summaries on 18% of US Google searches, rising to 53% of searches of ten words or more and 60% of searches that start with a question word. In my own October 2026 study of 400 local service searches in the US and UK, 88% showed an AI Overview.
Do AI Overviews reduce clicks? Yes. Seer Interactive's April 2026 update found organic click-through of 2.36% on searches with an AI Overview against 3.82% without, and Pew found people clicked a traditional result in 8% of visits with an AI summary against 15% without. That is why being named in the answer matters more than ranking under it.
Which AI search engine is biggest? ChatGPT, by a wide margin. OpenAI reported 900 million weekly ChatGPT users in February 2026, and Statcounter's September 2026 data gives ChatGPT 80.5% of AI chatbot referrals to websites, with Google Gemini second at 10.9% and Perplexity third at 5.9%. Your buyers are spread across all of them.
Where do AI citations come from? Muck Rack's May 2026 Generative Pulse report, covering more than 25 million links cited by ChatGPT, Claude and Gemini, found around 84% of AI citations come from earned media rather than a brand's own pages, which is why getting featured on trusted sources is the core of the work.
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If you run a local service business, my study of AI Overviews on local service searches breaks these numbers down by industry for the US and UK.
For a single site view, see how Copilot citations grew from July to October.
Start here
See where you stand against these numbers, free. If the statistics worry you and you would rather have it handled, that is what I do.
Keep reading on GEO and AEO
- What is Generative Engine Optimization (GEO)?
- How to get featured on the sources AI trusts
- How to optimise for Google AI Overviews
- Work with me on GEO and AEO
Related reading: How AI Search Is Changing Marketing and How to Get Cited by Claude.
Want the complete version? Read where I break down AI marketing.
More on getting found by AI:
- AI brand monitoring tools
- whether you can pay to be recommended by AI
- why AI recommends your competitor and not you
See also: my 2026 AI search demand report, built from 3.4 million searches.
What I Changed on My Own Site After Watching AI Crawlers for Six Months
I pulled the server logs for lilachbullock.com from January through June and cross-referenced them against known AI crawler user agents: GPTBot, ClaudeBot, PerplexityBot, Google-Extended and CCBot. GPTBot alone hit my site 3,400 times in that window, more than double the crawl frequency of Bingbot. That surprised me, because Bing is the one feeding ChatGPT's live search results, so I expected it to be the heavier visitor. It was not even close.
The pages these bots kept returning to were not my homepage or my most "optimised" landing pages. They were three old blog posts, all published before 2021, each answering one narrow question directly in the first two sentences, then backing it up with a number or a named source. One post about LinkedIn outreach limits got crawled 190 times by ClaudeBot in a single month. My glossy 2024 cornerstone content, the stuff I paid a designer to make beautiful, barely got touched. The lesson I took from this: AI crawlers reward plain, front-loaded answers over polish and length.
Based on that, I rewrote the opening two sentences of my twelve highest-traffic posts to state the direct answer before any framing or story. I also added a short "quick answer" line right under each H1, something I had resisted before because it felt clunky for human readers. Within eight weeks, three of those posts started showing up as cited sources in Perplexity answers when I searched my own target queries, something that had never happened before with the old intros. I have no controlled experiment here, no A/B test, just a before and after on my own site, so treat it as one data point rather than a rule. But if you want a low-effort test, check your own logs for GPTBot and PerplexityBot activity before you touch anything. If they are already crawling a page heavily and it is not converting into citations, the intro is usually the first place to look.
- Pull your last 90 days of logs and filter for GPTBot, ClaudeBot and PerplexityBot user agents.
- Note which pages get repeat visits from the same bot within a 30 day window; that repetition usually signals the content is being reconsidered, not just indexed once.
- Rewrite the first two sentences of those pages to answer the core question with no throat clearing, then check back in 60 days.
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