SEMAI Research · SERP vs Google AI Overviews · March 2026
Google's #1 result gets cited
by its own AI 40% of the time.
Its #2 result? Only 15%.
We compared what ranks #1 and #2 in Google Search against what Google's AI Overview actually cites -- for the same queries. Here's what we found.
SERP = Google organic results
GAIO = Google AI Overview
43%
Queries: zero SERP overlap
41%
Rank #1 to GAIO citation rate
45%
Queries where SERP and GAIO agree
21%
Same brand, GAIO picks diff page
Data scope: This dataset captures rank #1 and rank #2 organic results per query. All SERP vs GAIO comparisons are based on these two positions -- the ones most likely to be cited by GAIO and therefore a fair test of the overlap question.
Finding 01
Every query falls into one of three patterns -- and nearly half show zero overlap
For each query we asked a single question: does what's ranking #1 or #2 in SERP appear anywhere in the GAIO citations? Three patterns emerged -- and together they define the entire SERP vs GAIO relationship.
Pattern A
44.9%
Same URL in SERP and GAIO
The page ranking #1 or #2 is the exact same page GAIO cites. Full agreement between search ranking and AI citation.
Pattern B
11.8%
Same website, different page
The same brand shows up in both. But GAIO cites a different page from that website than the one ranking in SERP.
Pattern C
43.3%
Completely different sources
No overlap at all. The websites GAIO cites are entirely different from what ranks #1 or #2 in SERP for that query.
What this means
In 43% of queries, GAIO completely ignores what ranks #1 and #2 in Google's own search results, citing entirely different sources. In only 45% do SERP and GAIO agree on the exact URL. The two systems are working from fundamentally different editorial logic.
Finding 02
Where do GAIO's citations actually come from?
We traced every GAIO citation URL back to whether it appeared in the rank #1 or rank #2 position for that same query. The breakdown shows how independently GAIO sources its content from what SERP ranks.
Exact same URL as SERP rank #1 or #2
10%
Same website, but a different page
4%
Completely outside SERP rank #1 or #2
86% -- sourced from elsewhere
86%
86% of GAIO citations come from websites not ranking #1 or #2 in Google Search for that query. Even when GAIO cites the same brand, it goes to a different page on that website 4% of the time rather than the ranked page.
Finding 03
If you rank #1, GAIO cites you 40% of the time. Rank #2 drops to 15%. Below that -- nothing.
When a SERP rank #1 or rank #2 URL does appear in GAIO, how often is that happening? These are the two best positions available -- and even they convert to GAIO citation less than half the time.
Rank #1 in SERP
40.6%
chance of GAIO citation
Rank #2 in SERP
15.3%
chance of GAIO citation
Ranks #3-10 in SERP
~0%
no citations found
Rank #1 gives you a 40% shot at GAIO citation. Rank #2 gives you 15%. Below rank #2, there's no evidence of any conversion to GAIO citation in this dataset. From a GAIO perspective, ranks #3 through #10 don't exist.
Finding 04
When the same website appears in both -- is it the same page or a different one?
In the queries where the same website appeared in both SERP and GAIO, we asked: is GAIO citing the exact page that ranked, or a different page on that site?
79.2%
Same page in both SERP and GAIO
The page that ranked is also the page GAIO cites. When a brand's top-ranking page is strong enough, both algorithms converge on the same URL.
20.8%
GAIO picks a different page from the same site
The brand gets the citation, but GAIO bypasses the ranked page and picks a different, usually more specific page from the same website.
In 1 in 5 cases where a brand appears in both SERP and GAIO, Google's AI chooses a different page from that brand's website. It trusts the brand, but not the specific page that ranked. Your best-ranking page is not always your best AI-citation page.
"How do I trace back a negative brand mention"
SERP rank 2linkedin.com/pulse/seo-age-ai-what-...
GAIO citeslinkedin.com/pulse/how-track-ai-overviews-g...
"What is the best way to generate more AEO citations"
SERP rank 2tryprofound.com/blog/agencies-launching-...
GAIO citestryprofound.com/resources/articles/answer-engine-opt...
"Challenges in managing utility company compliance"
SERP rank 1v-comply.com/blog/the-major-challenges...
GAIO citesv-comply.com/blog/mastering-utilities-compliance...
"How AI improves customer onboarding"
SERP rank 1churnzero.com/blog/customer-onboarding-with-ai
GAIO citesnice.com/faq/ai-customer-service-agentic-ai
"Enterprise skill assessment methods"
SERP rank 1fuel50.com/2025/06/skills-assessment-platforms
GAIO citesubiminds.com/en-us/online-tools-assess-candidates
"What should I look for when outsourcing QA"
SERP rank 1sandra-parker.medium.com/qa-outsourcing-guide
GAIO citesenhops.com/blog/a-guide-to-outsourcing-your-qa
What to do about it
Five things this means for your content and SEO strategy
-
01
Ranking in Google does not automatically mean you appear in GAIO. Even rank #1 only converts to a GAIO citation 40% of the time. These are two different outcomes that need two different strategies.
-
02
If you rank #1, check whether GAIO is citing the same URL. If it's citing a different page from your site, that page is your real GAIO asset. Study what's different about it -- it's telling you what makes a page citation-worthy to AI.
-
03
SERP ranks #3 through #10 give you zero GAIO benefit. There's no evidence in this dataset of any rank-3-or-below URL being cited by GAIO. Either aim for #1, or build a page designed specifically to be cited by AI.
-
04
86% of GAIO citations come from outside the top two SERP results. A brand with no strong SERP ranking can still get cited by GAIO if its content is structured the right way. GAIO is an open door for challenger brands.
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05
In 43% of queries, GAIO and SERP cite completely different brands. Track both separately -- a brand can be invisible in SERP and visible in GAIO, or vice versa.
