GEO vs SEO: What Changes When AI Answers the Query

Short answer: SEO works to rank a page so people click it. GEO, generative engine optimization, works to get your brand named inside the answer an AI tool writes. The base is shared: AI tools read the same web, and a page search engines cannot find or trust rarely gets cited. What changes is the unit of work (the claim, not the page), where your brand needs to appear (other sites, not only yours) and the scoreboard (mentions, not rankings).

This page covers GEO against classic SEO only. For where answer engine optimization fits between the two, see our entry on answer engine optimization (AEO). For the definition of GEO, see generative engine optimization.

How do GEO and SEO differ?

	SEO	GEO
Goal	Rank the page in the list of results	Be named or cited inside the AI answer
Where it shows	Google and Bing organic results	ChatGPT, Perplexity, Gemini, Claude, Copilot, Google AI Overviews
What the engine returns	A ranked list of links	One written answer that quotes or names a few sources
Unit of work	The page, and the site around it	The claim: a fact, number or comparison that can be quoted alone
Where you need to appear	Your own site, plus links pointing to it	Your site, plus mentions on review sites, lists, forums and press the AI reads
Signals that matter	Relevance, links, technical health, topical depth	Specific and sourced statements, original data, quotations, brand mentions, freshness
What fails	Thin pages, poor crawlability	Vague copy, claims with no source, keyword stuffing
How you measure	Rankings, impressions, clicks, organic pipeline	Share of answers that name you for a fixed prompt list, citations, AI referral visits
Time to see change	Weeks to months per page	Varies by tool; answers change as models and their search sources update

What stays the same?

Most of the foundation. Both depend on pages that load, can be crawled, and come from a site with depth on the topic. Google’s AI Overviews are built into Google Search, and assistants like ChatGPT and Perplexity search the web before they answer. If your page is not indexed, it is unlikely to be read, and a page that is not read cannot be cited.

The habits that make a page useful to a person also hold: answer the question early, use headings that say what each section covers, put comparisons in tables, and keep facts current. Our guide to B2B SaaS SEO with AI covers that shared base in more depth.

What changes with GEO?

Ranking is no longer enough

Ahrefs studied 863,000 keyword results and 4 million URLs cited in AI Overviews. In its March 2026 update, 37.9% of the cited URLs also appeared in the top 10 results for the same query. 31.2% came from positions 11 to 100, and 31.0% from beyond the top 100. A top-3 ranking does not guarantee a mention in the answer above it, and a page on page three can still be cited.

Fewer people click

When the answer is written on the results page, fewer people visit the sources. In a Pew Research Center study of 900 US adults’ Google searches in March 2025, users clicked a traditional result in 8% of visits when an AI summary appeared and in 15% when none did. They clicked a link inside the summary in about 1% of visits. If your brand is named in that answer, the reader still sees it even without a click. If it is not, that reader may never see your name.

Specific claims beat repeated keywords

The term GEO was introduced in a 2023 research paper, later accepted at the KDD 2024 conference, which tested ways to change a source so generative engines show more of it. Across a 10,000-query benchmark, the best methods raised a source’s visibility in the answer by up to 40%. Adding quotations and adding statistics did best. Citing sources helped most for pages that started low: it raised the visibility of the fifth-ranked source by 115%. Keyword stuffing, the classic SEO shortcut, scored below the unchanged pages on the paper’s main visibility measure, and about 10% below them when the authors repeated the test on Perplexity.

Your brand has to be mentioned off your own site

A search ranking is earned mostly by your page and the links to it. An AI answer about “the best tools for X” is often built from review sites, comparison lists, forum threads and news. If your company is not on those pages, the answer has no reason to name you. GEO work includes getting listed, reviewed and quoted where your buyers’ questions get answered.

The audience is large and growing

ChatGPT reached 900 million weekly active users in February 2026, OpenAI announced. Google said in July 2025 that AI Overviews had over 2 billion monthly users. B2B buyers research vendors in those tools before they ever fill in a form.

How do you measure GEO compared with SEO?

Question	SEO answer	GEO answer
Are we visible?	Average position for target keywords	Share of answers that name us, from a fixed list of 20 to 50 buyer prompts
Where do we stand against competitors?	Who ranks above us	Which brands the answers name instead of us, prompt by prompt
Which pages work?	Pages with the most organic clicks	Pages the answers cite, and the claims they quote
Is it bringing buyers?	Organic sessions, conversions and pipeline	Referral visits from chatgpt.com, perplexity.ai and similar, plus branded search growth
Where do we get the data?	Search Console, rank trackers, analytics	Manual prompt checks or an AI visibility tool, plus analytics referrals

Two rules make GEO measurement useful. Keep the prompt list fixed so month-to-month changes mean something, and write the prompts the way buyers ask (“best payroll software for a 50-person company”), not as keywords. Answers vary between runs, so check each prompt more than once before you call a change.

How does one company score on both?

Illustrative, not a benchmark. The company is fictional.

Larkfield Analytics sells embedded analytics to SaaS product teams. Its SEO report looks healthy: its pricing guide ranks third on Google for “embedded analytics pricing,” and its comparison page with a larger rival ranks first for that pair.

Then the marketing lead runs 30 buyer prompts through ChatGPT, Perplexity and Google AI Overviews, such as “which embedded analytics tool is best for a Series B SaaS company” and “embedded analytics tools with usage-based pricing.” Larkfield is named in 4 of the 90 answers. Two competitors with weaker Google rankings are named in more than 40 each. The answers cite two review sites and a widely shared comparison list, none of which mention Larkfield.

The fix does not touch the rankings. Larkfield:

1. Rewrites its pricing guide so the first paragraph states its real price range and what drives it, in two quotable sentences.
2. Publishes a short study from its own product data: median dashboard load time by data volume, with the method.
3. Asks ten customers for reviews on the two review sites the answers cite, and pitches the author of the comparison list with the new data.
4. Re-runs the same 30 prompts every month and records which answers name it.

The SEO scoreboard asked whether the page ranks. The GEO scoreboard asked whether the answer names the company. Larkfield had won the first and was losing the second.

Should you split budget between GEO and SEO?

Run them as one program with two scoreboards. The pages are the same, and so is most of the work. Shift the weight based on where your buyers research:

• Lean on SEO when your buyers search with clear product terms, your market has few AI-written answers yet, or your site has technical problems that keep pages from being indexed.
• Add GEO work when buyers ask open questions (“which tool should I use for this job”), when AI answers for your category name competitors and not you, or when your organic clicks fall while impressions hold.
• Do both on every new page: answer first, specific claims with sources, a comparison table where it helps, and an FAQ built from the questions buyers ask.

How Growigami does GEO and SEO

Our AI search and SEO service writes the pages AI answers draw on, such as comparisons, integrations, use cases and plain definitions, built to rank on Google as well. Each month we ask the assistants your buyers use the questions they ask, and show you which answers name you and which name a competitor. You approve every page before it goes live.