Statistics · Updated October 2026
Generative engine optimization statistics: citations, overlap, traffic
The numbers behind GEO: how often AI cites sources, how little it overlaps with Google rankings, and how AI-referred visitors behave and convert.
Short answer
What do generative engine optimization statistics show?
Only 12% of URLs cited by ChatGPT, Gemini and Copilot rank in Google's top 10 for the same prompt (Ahrefs, August 2025). LLMReach's October 2026 data shows 76.7% of recommended brands are named by only one assistant.
Key figures
The GEO numbers that matter
- of URLs cited by ChatGPT, Gemini and Copilot rank in Google's top 10
- 12%
- of URLs cited by ChatGPT, Gemini and Copilot rank in Google's top 10
- Ahrefs, August 2025
- more visibility in generative engine responses from GEO methods, in the original study
- Up to 40%
- more visibility in generative engine responses from GEO methods, in the original study
- Aggarwal et al., KDD 2024
- better conversion for AI traffic to US retail sites in March 2026
- 42%
- better conversion for AI traffic to US retail sites in March 2026
- Adobe, April 2026
- of US ChatGPT prompts showed a citation in May 2026, up from 1.6%
- 6.8%
- of US ChatGPT prompts showed a citation in May 2026, up from 1.6%
- Similarweb, July 2026
- of brands systematically track AI search performance
- 16%
- of brands systematically track AI search performance
- McKinsey, October 2025
- of brands AI assistants recommend are named by only one of ChatGPT, Gemini and Perplexity
- 76.7%
- of brands AI assistants recommend are named by only one of ChatGPT, Gemini and Perplexity
- LLMReach measurement, October 2026
- of recommended brands are named by all three assistants for the same question
- 7.6%
- of recommended brands are named by all three assistants for the same question
- LLMReach measurement, October 2026
- share of AI-cited websites in Google's top 10, by sector
- 4% to 32%
- share of AI-cited websites in Google's top 10, by sector
- LLMReach measurement, October 2026
All figures
Every GEO statistic in one table
| Statistic | Figure | Source |
|---|---|---|
| Google results for AI-cited URLs: none for original query | 80% | Ahrefs, August 2025 |
| AI Overview citations from top 10 pages | 76% | Ahrefs, August 2025 |
| More organic clicks per impression when cited in AI Overview | +120% | Seer Interactive, April 2026 |
| Travel & Hospitality ChatGPT prompts with a citation | ~23% | Similarweb, July 2026 |
| Share of all website traffic from AI platforms in 2026 | 0.32% | SE Ranking, 2026 |
| More time on site from AI-referred visitors | 68% | SE Ranking, 2026 |
| Year-over-year growth in AI traffic to US retail sites | 393% | Adobe, April 2026 |
| Average LLM-readability score of US retail homepages | 75% | Adobe, April 2026 |
| Google AI summary sources from Wikipedia, YouTube or Reddit | 15% | Pew Research Center, July 2025 |
| AI-powered search users calling it their primary source | 44% | McKinsey, October 2025 |
| AI search sources that are a brand's own sites | 5% to 10% | McKinsey, October 2025 |
| US revenue AI-powered search stands to impact by 2028 | $750 billion | McKinsey, October 2025 |
| More value per AI search visitor, by conversion rate | 4.4x | Semrush, July 2025 |
| ChatGPT 4o links pointing to business or service websites | 50% | Semrush, July 2025 |
| Buyer questions with no brand common to all three assistants | 52% | LLMReach measurement, October 2026 |
| AI answers citing Reddit | 1.5% | LLMReach measurement, October 2026 |
What it means
What GEO data means for brands
Google rank is not enough
Ahrefs found only 12% of AI-cited URLs rank in Google's top 10. LLMReach measured 4% to 32% by sector. Rankings alone will not secure AI mentions.
Each assistant needs its own check
LLMReach found 76.7% of recommended brands appear in only one assistant, and just 7.6% in all three. Track ChatGPT, Gemini and Perplexity separately.
AI visitors are worth earning
Adobe reports AI traffic converting 42% better in March 2026, and Semrush rates AI visitors 4.4x more valuable. Yet McKinsey finds only 16% of brands track it.
Trend
ChatGPT citations are rising
View the data as a table
| June 2025 | May 2026 | |
|---|---|---|
| Prompts with a citation | 1.6% | 6.8% |
Source: Similarweb, July 2026
Our data
Each assistant picks differently.
Same 250 buyer questions, three assistants.
Per assistant, %
- ChatGPT
- Gemini
- Perplexity
Source: LLMReach measurement, 750 answers to 250 buyer questions in 25 sectors, 5 to 7 October 2026View as table
| Brand | ChatGPT | Gemini | Perplexity |
|---|---|---|---|
| Cite a website | 100% | 92.8% | 100% |
| Brands no other AI named | 59% | 58.3% | 58.5% |
| Sources in Google top 10 | 10.7% | 13.4% | 14.4% |
Our data
The sites AI cites most.
Websites cited across 750 answers to buyer questions in 25 sectors, ranked by how many answers cite them.
- 01maps.google.comhttps://maps.google.com/?cid=17809755708024308314&g_mp=Cidnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLlNlYXJjaFRleHQcited in 52 of 750 answers
- Gemini
- 02forbes.com10 Best HR Software Of 2026cited in 38 of 750 answers
- Perplexity
- Gemini
- ChatGPT
- 03expertise.com13 Best Dallas, TX Tax Services | Expertise.comcited in 35 of 750 answers
- Perplexity
- ChatGPT
Gemini
Perplexity
ChatGPT
- 04cited in 27 of 750 answers
- Perplexity
- ChatGPT
- 05=cited in 24 of 750 answers
- Perplexity
- Gemini
- ChatGPT
- 05=cited in 24 of 750 answers
- Gemini
- ChatGPT
- 07cited in 20 of 750 answers
- Perplexity
- Gemini
- ChatGPT
- 08moneygeek.comCheapest (and Best) Car Insurance in Houston, TXcited in 15 of 750 answers
- Perplexity
- ChatGPT
- Gemini
- 09cited in 14 of 750 answers
- Perplexity
- ChatGPT
- Gemini
- 10superlawyers.comBest Chicago, IL Wrongful Termination Attorneys - Super Lawyerscited in 13 of 750 answers
- Perplexity
- Gemini
- ChatGPT
- 11=hubspot.comHubSpot Sales Hubcited in 12 of 750 answers
- Perplexity
- ChatGPT
- Gemini
- 11=cited in 12 of 750 answers
- Perplexity
- Gemini
LLMReach measurement, ChatGPT, Gemini and Perplexity, 5 to 7 October 2026.
Embed this graphic
Use this graphic on your site
<a href="https://www.llmreach.ai/ai-search-statistics/generative-engine-optimization-statistics">
<img src="https://www.llmreach.ai/charts/ai-search-statistics/generative-engine-optimization-statistics.svg" alt="The sites AI cites most" width="800" loading="lazy" />
</a>
<p>Source: <a href="https://www.llmreach.ai/ai-search-statistics/generative-engine-optimization-statistics">GEO statistics by LLMReach</a></p>Free to use with the credit link.
Methodology
How these figures were measured.
| Assistant | Model | Questions |
|---|---|---|
| ChatGPT | gpt-5-6 | 250 |
| Gemini | 3.5 Flash-Lite | 250 |
| Perplexity | sonar | 250 |
10 example buyer questions, from the 250 asked to each assistant
- 01best digital marketing agency in Chicago for B2B companies
- 02best Toyota dealership in Houston
- 03what is the best CRM for a 10-person sales team?
- 04best natural deodorant that actually works
- 05best endpoint detection and response platform for a mid-size company
- 06who is the best family dentist in Houston that takes new patients?
- 07best running shoes for flat feet
- 08best online MBA program for working professionals
- 09which vendors should we evaluate for enterprise data security?
- 10best fee-only financial advisor for tech executives with stock options
- Third-party figures come from primary sources we read directly, and each links to the original study or report.
- Our own figures come from 750 answers to 250 buyer questions across 25 sectors, compared with Google's top 10.
- Dates are shown on every figure, so you can judge how current each number is.
- Different methods, samples and time periods explain why studies report different numbers for similar questions.
Cite this page
Quote these figures in your work
<p>
Source: <a href="https://www.llmreach.ai/ai-search-statistics/generative-engine-optimization-statistics">Generative engine optimization statistics: citations, overlap, traffic</a>,
LLMReach, updated October 2026.
</p>Writers are welcome to cite these figures and link back to this page.
FAQ
Generative engine optimization statistics: FAQ
How much can GEO improve visibility in AI answers?
The original generative engine optimization study by Aggarwal et al. (KDD 2024) found GEO methods can boost visibility by up to 40% in generative engine responses. Results depend on the method used and the engine.
How often do AI citations overlap with Google rankings?
Ahrefs (August 2025) found only 12% of URLs cited by ChatGPT, Gemini and Copilot rank in Google's top 10 for the same prompt. About 80% don't rank anywhere in Google for the original query.
Does AI referral traffic convert better than other traffic?
Adobe (April 2026) reported AI traffic to US retail sites converted 42% better in March 2026, versus 38% worse a year earlier. Semrush (July 2025) rated AI search visitors 4.4 times as valuable by conversion rate.
How big is AI referral traffic today?
SE Ranking (2026) found AI platforms account for 0.32% of all website traffic, up from 0.02% in 2024. Adobe (April 2026) measured 393% year-over-year growth in AI traffic to US retail sites in early 2026.
How many brands track their AI search performance?
McKinsey (October 2025) found just 16% of brands systematically track AI search performance. It also reports a brand's own sites make up only 5% to 10% of the sources AI search references.
What did LLMReach's own measurement find?
LLMReach's October 2026 measurement covers 750 answers to 250 buyer questions in 25 sectors. 76.7% of recommended brands were named by only one assistant, and just 7.6% by all three.
Free AI Audit
See where AI cites your brand
You leave knowing where the gap is, what is causing it, and which changes would matter first, whether we work together or not.
What to expect
Audit
Before the call, we run your buyers' questions through ChatGPT, Claude, Perplexity and Gemini.
Map
On the call, we show you where competitors are cited and you are not, and what's causing it.
Decide
An honest read on whether the Citation Stack fits. If it doesn't, you'll hear it on the call.
Don't see a time that works? Email Karim directly: contact@llmreach.ai