AI Search Statistics 2026

120+ data points on AI search adoption, market share, click-through, citation patterns, and revenue impact across ChatGPT, Perplexity, Claude, Gemini, Grok, and Google AI Overviews. Free to cite and embed.

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1.1B+

ChatGPT monthly users

780M+

Google AI Overviews reach

58%

US zero-click search rate

34.5%

Drop in CTR when AI Overview appears

AI search adoption

How many people actually use AI search in 2026?

Direct from platform disclosures, independent measurement firms, and Livesov’s tracked-brand panel.

1.1B+ monthly ChatGPT users

OpenAI disclosed ChatGPT crossed 1 billion weekly active users in late 2025, with monthly actives tracking ~25% higher. It is now the third most-visited destination on the web.

780M+ Google AI Overviews users

Google reports AI Overviews now surface for over half of qualifying queries in 100+ countries, reaching a monthly audience comfortably above 780M users by Q1 2026.

230M+ Perplexity users

Perplexity passed the 230M monthly active mark in early 2026 and processes more than 1.1B queries per month, making it the largest dedicated answer engine.

120M+ Claude users

Anthropic crossed 100M monthly users in late 2025 and is growing at 14% MoM through enterprise, Slack, Notion, and the Claude.ai consumer surface.

95M+ Gemini app users

Google's standalone Gemini app reports more than 95M monthly users globally - separate from the 780M reached via AI Overviews inside classic Google search.

60M+ Grok users via X

xAI's Grok benefits from native distribution inside X. Estimates put combined Grok-on-X plus Grok.com usage above 60M monthly actives.

Why these numbers matter

Together, the six major AI surfaces now reach more than 2.4B monthly users - roughly 30% of global internet population. AI search is no longer experimental; it is mainstream consumer behavior.

Market share

Who owns the AI search market?

Share of global AI search traffic, with year-over-year growth, by surface.

AI search surface	Monthly users (est.)	% of AI search traffic	YoY growth
Google AI Overviews	780M+	38%	+92%
ChatGPT (incl. Search)	1.1B+	34%	+58%
Perplexity	230M+	9%	+147%
Claude	120M+	6%	+220%
Gemini app	95M+	5%	+74%
Grok (X + Grok.com)	60M+	4%	+310%
Microsoft Copilot	50M+	3%	+11%
Other (You, Brave, Andi, etc.)	~30M	1%	+19%

User behavior

What AI search is doing to clicks and queries

Six behavioral metrics that should reframe every 2026 content strategy.

34.5% drop in click-through

When an AI Overview appears for a query, click-through to the top organic result drops by an average of 34.5% (Ahrefs, Q1 2026 study of 300K SERPs).

58% zero-click rate

58% of US searches in 2026 end without a click to a non-Google property - a 13-point jump in two years, driven primarily by AI Overviews and ChatGPT Search.

4.4× longer queries

Average query length in Perplexity and ChatGPT Search is 23 words vs. 5.2 words for classic Google. Conversational, full-sentence queries are the new norm.

3.1 citations per answer

Perplexity cites an average of 3.1 distinct domains per answer; ChatGPT Search cites 2.6; Google AI Overviews cites 1.9. Concentration is increasing.

47s median session

Median Perplexity session is 47 seconds with a follow-up rate of 38% - users complete tasks in-product rather than navigating away.

12.4% conversion lift

B2B brands cited by ChatGPT in answers see a 12.4% lift in branded-search volume within 30 days (Livesov panel of 1,200 tracked brands, 2025–2026).

Citations

Which sources AI engines actually quote

Aggregate share of source domains cited across Perplexity, ChatGPT Search, and Google AI Overviews. Livesov panel, Q1 2026.

Source type	Share of AI citations	Notes
Reddit	21.4%	Largest single domain cited across Perplexity, ChatGPT, and Google AI Mode.
Wikipedia	14.8%	Falling vs. 2024 as LLMs diversify, but still dominant for facts and definitions.
Major publishers (NYT, WSJ, etc.)	11.2%	Concentrated in news and finance verticals.
YouTube	8.9%	Increasingly transcript-cited in ChatGPT Search and Gemini.
LinkedIn	6.1%	Strong for B2B people, company, and thought-leadership queries.
GitHub	5.4%	Dominant for developer, infra, and library queries.
Review platforms (G2, Capterra, Trustpilot)	4.7%	High citation share for "best X" and "X vs Y" SaaS queries.
Independent blogs and Substacks	4.3%	Rising - quality long-form increasingly competes with publishers.
Brand-owned domains	3.8%	Surprisingly low - most brand-owned content is referenced, not quoted.
Other	19.4%	Long tail of niche forums, docs, and academic sources.

By industry

AI search penetration by vertical

The verticals where AI has already crossed 50% adoption - and where the ground is moving fastest.

Healthcare: 71% AI-first

71% of US consumers researching a health condition now start with an AI tool over Google. ChatGPT leads at 44% share of first-touch.

B2B SaaS: 64% AI-cited

64% of "best [category] software" queries in Perplexity and ChatGPT Search return at least one named SaaS brand in the first paragraph.

Legal: 53% answered in-place

53% of legal-research queries in ChatGPT Search and Gemini are completed without leaving the AI surface, up from 31% in 2024.

Finance: 4.2× CTR drop

Finance-vertical organic CTR has dropped 4.2× faster than the SERP average - AI Overviews dominate "how does X work" and "best X account" queries.

Real estate: 38% Gemini share

Real estate research is the single highest-share Gemini vertical at 38% - Google's AI Overviews monopolise local intent.

Travel: 47% Perplexity-first

47% of multi-leg travel planning queries now start in Perplexity, citing 4.7 sources on average per itinerary suggestion.

Business impact

Revenue, conversion, and addressable market

What AI search is worth - and what being cited (or missed) is doing to brand revenue.

$2.1T addressable market

AI search is forecast to mediate $2.1T in commerce decisions by 2027 - roughly 18% of global e-commerce, B2B, and high-consideration purchase flows.

+27% AOV when AI-cited

E-commerce brands cited by AI in product comparison queries show a 27% higher average order value among AI-referred sessions (Livesov + partner panel, 2026).

52% of B2B buyers use AI

52% of B2B technology buyers now use generative AI in the consideration phase - up from 14% in 2023 (Gartner CIO survey, 2025).

11s to first recommendation

Median time from query submission to first named brand recommendation is 11 seconds across ChatGPT, Claude, and Perplexity - faster than scanning a single SERP.

Crawler share

Which AI crawlers are reading your site

If you block these, you opt out of every LLM that respects the standard.

Crawler	User agent	Share of LLM training/retrieval traffic	Notes
GPTBot	GPTBot	38%	Training corpus for GPT-4 family.
OAI-SearchBot	OAI-SearchBot	14%	Live retrieval for ChatGPT Search.
Google-Extended	Google-Extended	17%	Opt-in agent for Gemini training. Separate from Googlebot.
ClaudeBot	ClaudeBot	12%	Anthropic training crawler.
PerplexityBot	PerplexityBot	9%	Indexes for Perplexity retrieval.
Bytespider (TikTok)	Bytespider	5%	ByteDance LLM crawler.
Other (Apple, Meta, xAI)	-	5%	Smaller-volume crawlers with growing share.

Methodology

The statistics on this page combine three data sources. First, public disclosures from OpenAI, Anthropic, Google, Perplexity, and xAI - earnings calls, official blogs, investor updates, and developer announcements through Q1 2026. Second, third-party measurement: Ahrefs (SERP studies), Similarweb (traffic), Sparktoro (search behavior), Gartner (enterprise adoption), and the Reuters Institute Digital News Report.

Third, Livesov’s own tracked-brand panel - 1,200+ brands across SaaS, e-commerce, healthcare, finance, legal, and travel, with continuous mention-rate, citation-share, and sentiment measurement across ChatGPT, Claude, Gemini, Perplexity, and Grok. Panel data is normalised against query category and refreshed daily.

Where ranges exist, we publish the midpoint. Where a number is an estimate (e.g. Grok usage where xAI does not disclose), we mark it as such. Every quarter, the entire page is re-baselined.

How to use this data

Every chart and stat is free to republish with attribution to Livesov AI Search Statistics 2026. If you cite us in a study, send a note to [email protected] and we will add your work to our references list on the next refresh.

If you want to see where your brand sits in this dataset - your share of voice across the five major LLMs, where your competitors are pulling ahead, and which prompts are quietly mediating revenue - that is what Livesov measures. Start free, no credit card.

AI search statistics FAQ

Sourcing, republishing, and how the panel is built.

Where do these AI search statistics come from?

Numbers come from public disclosures (OpenAI, Anthropic, Google, Perplexity earnings and investor updates), Q1 2026 third-party studies (Ahrefs, Similarweb, Sparktoro, Gartner), and Livesov's own panel of 1,200+ tracked brands across ChatGPT, Claude, Gemini, Perplexity, and Grok. Every section is cite-ready - copy the stat with attribution to Livesov.

Can I republish these statistics?

Yes, with a link back to https://livesov.com/ai-search-statistics-2026 as the source. The data is free to use in articles, decks, and reports under attribution.

How often is this page updated?

Quarterly. The next refresh is scheduled for Q2 2026 with mid-year adoption and citation data. Subscribe via the footer to get notified.

Which AI search engine has the most users?

ChatGPT has the largest user base overall (1.1B+ monthly actives), but Google AI Overviews reaches more search queries (~780M monthly users across AI-augmented Google search). Perplexity is the fastest-growing dedicated answer engine at +147% YoY.

How much has AI search reduced organic traffic?

Average organic click-through on queries that trigger AI Overviews has dropped 34.5% in 2025–2026. Zero-click rate is now 58% in the US - meaning more than half of all searches end inside the AI surface itself.

Which sources do AI search engines cite most?

Reddit (21.4%), Wikipedia (14.8%), major publishers (11.2%), YouTube (8.9%), and LinkedIn (6.1%) make up the top five. The mix is shifting toward user-generated and community sources year over year.

How is AI search affecting B2B and SaaS?

64% of "best [category] software" queries in Perplexity and ChatGPT Search return a named SaaS brand in the first paragraph. 52% of B2B buyers now use generative AI in the consideration phase. Cited brands see a 12.4% lift in branded search and 27% higher AOV from AI-referred traffic.