AI Search Statistics Every Marketer Should Know

The most useful AI search statistics for 2026 tell a two sided story. AI search is huge: ChatGPT passed 800 million weekly users in October 2025, Google says AI Overviews reach more than 2.5 billion people a month, and AI Mode passed 1 billion monthly users in 2026. But Google still dominates search, 95% of ChatGPT users also use Google, and AI platforms send only about 0.32% of all website traffic.

The bigger change is in clicks. 68% of US Google searches ended without a click in early 2026, and searches with an AI summary get roughly half the clicks of those without. Below are 28 AI search statistics, each with its date, source and the catch you should know before quoting it.

The Headline AI Search Statistics At A Glance

AI Search Adoption Statistics

These AI search statistics cover how many people use each platform, and how much they overlap.

ChatGPT Usage Statistics

How Many People Use ChatGPT Each Week

1. ChatGPT passed 800 million weekly users in October 2025. Sam Altman announced the figure at OpenAI’s DevDay on October 6, 2025.

2. It was reported at about 900 million weekly users and 50 million paying subscribers in early 2026. The figure is attributed to OpenAI’s Nick Turley in press coverage, but it hasn’t been published in an official OpenAI post, so treat it as reported rather than confirmed.

How Many ChatGPT Users Still Use Google

3. 95% of ChatGPT users also used Google. Similarweb data reported by Search Engine Journal found 461 million of ChatGPT’s 494 million users also used Google between March and May 2026.

4. Search sites still reach five times more people. The same data showed 3.3 billion average monthly unique visitors to search sites, against 655 million for AI chatbots overall. AI search is being added on top of Google, not replacing it.

Google AI Overviews And AI Mode Statistics

5. AI Overviews had over 2 billion monthly users by July 2025. Sundar Pichai said on Alphabet’s earnings call that AI Overviews reached “over 2 billion monthly users across more than 200 countries and territories.”

6. That rose to more than 2.5 billion monthly users by May 2026, and 7. AI Mode passed 1 billion monthly users, both announced at Google I/O 2026, as reported by Unite.AI. If you see “2 billion” in other roundups, it’s the 2025 figure. Our guide to getting your pages cited in Google AI Overviews covers what to do about it.

Gemini Usage Statistics

8. The Gemini app reached 950 million monthly active users, according to Alphabet’s Q2 2026 earnings on July 22, 2026, per the same report. Note that Gemini is measured monthly and ChatGPT weekly, so the two numbers aren’t directly comparable.

Click And Zero Click Search Statistics

Usage numbers grab headlines, but the AI search statistics that matter most for your traffic are about clicks.

Zero Click Search Statistics

9. 68.01% of US Google searches ended without a click between January and April 2026, according to SparkToro’s analysis of Similarweb clickstream data, as reported by TechWyse. 10. That was up from 60.45% in 2024. Zero click doesn’t always mean a lost customer; many searches are answered by a phone number, a map or a quick fact.

AI Overview Click Through Rate Statistics

What Pew Research Found

Pew Research Center analyzed the browsing data of 900 US adults in March 2025:

• 11. 18% of their Google searches produced an AI summary.

• 12. People clicked a traditional result in 8% of visits with an AI summary, against 15% without one.

• 13. Only 1% of visits with a summary included a click on a link inside it.

• 14. 26% of searches with an AI summary ended the browsing session, against 16% without.

What Seer Interactive Found

Seer Interactive tracked 3,119 informational queries across 42 organizations from June 2024 to September 2025:

• 15. Organic CTR on queries with an AI Overview fell 61%, from 1.76% to 0.61%.

• 16. Organic CTR on queries without one also fell, by 41%, so not all the decline is due to AI Overviews.

• 17. Paid CTR on queries with an AI Overview fell 68%, from 19.70% to 6.34%.

• 18. Brands cited in the AI Overview got 35% more organic clicks and 91% more paid clicks than brands that weren’t. Seer notes this may partly reflect that stronger brands get cited more.

AI Referral Traffic Statistics

For most marketers, these are the AI search statistics to watch month to month, because they show up in your own analytics.

AI Share Of Total Website Traffic

19. AI platforms sent 0.32% of all website traffic in 2026, according to SE Ranking’s study of 101,574 websites from January 2025 to April 2026. 20. That’s a 16x rise from 0.02% in 2024. Small as a share, but growing faster than any other channel, and AI visitors often arrive further along in their decision.

Which AI Platforms Send The Most Traffic

21. ChatGPT sent 74.78% of AI referral traffic in the same study, followed by Gemini at 11.56%, Perplexity at 7.23%, Copilot at 3.51% and Claude at 2.62%. ChatGPT’s share fell from 79.74% in 2025 as Gemini grew. If you’re starting anywhere, start with our playbook on how to rank on ChatGPT.

AI Visibility And Citation Statistics

How Often AI Answers Change

22. AI tools almost never give the same list of brands twice. In a SparkToro and Gumshoe study, about 600 volunteers ran 12 prompts nearly 3,000 times; the odds of the same list were under 1 in 100, and the same order about 1 in 1,000. That’s why “AI rank” is a poor metric and mention rate across many prompts is a better one, as we explain in our comparison of AI visibility tracking tools.

Does Schema Increase AI Citations

23. Adding schema didn’t clearly lift AI citations. Ahrefs tracked 1,885 pages that added JSON LD between August 2025 and March 2026: AI Mode citations moved +2.4% and ChatGPT +2.2% (both statistically indistinguishable from zero), while AI Overviews fell 4.6%. 24. Yet AI cited pages were about three times more likely to have JSON LD in a 6 million URL analysis, a correlation, not a cause. More in our guide to schema markup for AI search.

How AI Crawlers Read Your Pages

25. None of the major AI crawlers Vercel studied render JavaScript, including OpenAI’s and Anthropic’s, according to Vercel’s analysis published December 2024. Content loaded only by scripts may be invisible to them. Special files don’t fix this either, as our look at whether you need llms.txt shows.

Platform Changes Behind The Numbers

New AI Reports From Google And Bing

26. Google Search Console’s generative AI report rolled out to all websites on August 31, 2026, showing AI Overviews and AI Mode impressions by page. 27. Bing Webmaster Tools’ AI Performance report launched in public preview in February 2026, counting citations in Copilot and Bing’s AI summaries. Neither shows clicks yet.

Spam Policies Now Cover AI Answers

28. Since May 15, 2026, Google’s spam policies explicitly apply to AI responses in Search, including attempts to manipulate AI Overviews and AI Mode, according to PPC Land. Tactics sold as AI search shortcuts now carry the same risk as old SEO tricks.

What These AI Search Statistics Mean For Your Marketing

For SEO Teams

Expect impressions to hold up while clicks fall on informational queries. Report both, and judge pages on leads, not just sessions. Being cited in AI answers is becoming as important as ranking; it’s the core of generative engine optimization and the AI search optimization work Rizqly does.

For Paid Search Teams

Seer’s 68% paid CTR drop on AI Overview queries is the number to watch. Review which campaigns bid on informational terms that now trigger AI Overviews, and shift budget toward commercial queries where ads still win the click. If you want a second pair of eyes on it, that’s what Rizqly’s Google Ads management is for.

For Content Teams

Short answer pages are the most exposed, because AI answers them directly. Original data, real examples and clear expert opinion are what AI cites and what readers still click for.

How To Track Your Own AI Search Numbers

Industry AI search statistics tell you the trend; your own data tells you what to do. Set up four things:

1. Search Console’s generative AI report for AI Overviews and AI Mode impressions by page.

2. Bing’s AI Performance report for citations and the queries behind them.

3. A GA4 segment for referrals from chatgpt.com, perplexity.ai, gemini.google.com, copilot.microsoft.com and claude.ai.

4. A prompt tracker for mention rate and share of voice across many prompts.

Compare them monthly and note the date of every change you make, so you can see what moved.

Frequently Asked Questions

Q1: How Many People Use AI Search?

ChatGPT passed 800 million weekly users in October 2025, Google’s AI Overviews reach over 2.5 billion monthly users and AI Mode over 1 billion, as of May 2026. Many people use several of these, so the numbers overlap.

Q2: Is AI Search Replacing Google?

Not yet. Similarweb data shows 95% of ChatGPT users also use Google, and search sites reach about five times more monthly visitors than AI chatbots.

Q3: How Much Traffic Does AI Search Send To Websites?

About 0.32% of all website traffic in 2026, per SE Ranking’s study of over 100,000 sites, with ChatGPT sending roughly three quarters of it.

Q4: Do AI Overviews Reduce Clicks?

Yes, on average. Pew found click rates of 8% with an AI summary against 15% without, and Seer found organic CTR fell 61% on queries with AI Overviews.

Q5: Want To Know Where You Stand In AI Search?

These AI search statistics show the market. A free strategy session shows your share of it.

Book a free strategy session and we’ll pull your Search Console AI impressions, Bing citations and AI referral traffic, compare them with these benchmarks, and tell you what we’d change first.