AEO vs. SEO: What's the difference?
SEO and AEO share the same technical foundation and diverge mainly in how a win is scored. A ranking is measured in position and clicks on a results page, while a citation is measured by whether an engine pulled a passage into its synthesized answer at all. Google states that AI Overviews and AI Mode carry no eligibility requirements beyond standard Search, so AEO layers onto existing SEO work instead of replacing it.
Where the two overlap
Google's guidance is explicit that there are no additional eligibility requirements for AI Overviews or AI Mode beyond the normal Search requirements and people-first practices (Google's AI features guidance). Your domain authority, your indexed content, and your technical health all carry forward, which is why the companies that see the fastest AEO movement are usually the ones who already invested in search. We treat existing SEO as a head start, and we have never recommended dismantling an SEO program to fund an AEO one.
The scorecard, side by side
| SEO | AEO | |
|---|---|---|
| Primary outcome | Ranking position and clicks to your site | Mentions, citations, and recommendations inside a generated answer |
| Unit of content | The page | The passage, fact, table, or brand statement |
| Where the work happens | Mostly your domain, plus backlinks | Your domain, plus reviews, publications, communities, and directories |
| How you measure | Keyword positions, sessions, conversions | Prompt coverage, citation share, share of voice, accuracy of the description |
| Tooling | Rank trackers, Search Console | A fixed prompt panel rerun across ChatGPT, Claude, Gemini, and Perplexity |
| Common failure | The page ranks but doesn't convert | The page ranks but never gets retrieved or quoted |
| Relationship | Foundation | Layer on top of the foundation |
What changes in the writing
Kevin Barber, our Head of AI Growth, describes the shift like this: "AEO is substantially different than traditional SEO because instead of long-form pages, you're focusing on semantic chunks that answer questions in bite-sized components." A 3,000-word pillar page can rank beautifully and still lose the citation, because the engine needs a self-contained passage it can lift, and a passage that only makes sense after 800 words of preamble is not liftable.
The rewrite is usually less disruptive than people expect, because most of it is restructuring rather than rewriting. The argument you already made stays; it just gets front-loaded into each section instead of arriving as a conclusion, and the numbers or process details you'd normally save for the end move up into the passage where an engine can actually reach them. Done properly, the page holds its rankings while picking up a second job, which is roughly what our AEO Launchpad does to an existing content library before we touch anything off-site.
Why the click math matters now
Pew found that users clicked a traditional search result on 8% of visits when an AI summary appeared, compared with 15% of visits when no summary was present (Pew Research Center). Rankings still have value and the traffic they produce still converts, but a growing share of what a buyer believes about your company now forms inside an answer they never click out of. Being described accurately in that answer has real commercial value even when the session never appears in your analytics, which is the part of the shift that traditional reporting is worst at showing you.
