AEO vs SEO: what actually changes
SEO earns a position on a results page a human scans; AEO earns a mention inside an answer an AI composes. SEO remains the foundation — assistants retrieve from pages that rank — but the winning levers shift: branded mentions across the web outweigh backlinks, freshness outweighs length, and comparison-format content outperforms the product pages that win classic search. You need both, run as one strategy.
What is the difference between AEO and SEO?
The practical differences:
What you win — A ranking position humans scan — A mention inside the composed answer
Primary off-site lever — Backlinks from authoritative sites — Branded mentions anywhere — linked or not (0.664 correlation)
Content length — Depth often rewarded — Irrelevant (0.04 correlation); 53% of cited pages under 1,000 words
Freshness — Matters for some queries — Dominant: 76% of top-cited pages updated within 30 days
Winning formats — Whatever matches intent — Comparisons and listicles — 43.8% of citations
Result stability — Rankings move slowly — ~45% of citations churn between refreshes
Measurement — Positions, clicks — Share of voice across repeated prompts, per platform
What transfers from SEO
The foundation survives: crawlable pages, fast responses, real content matched to real questions, and authority earned over time. Assistants retrieve heavily from pages that already rank — Perplexity takes roughly 29% of its citations from Google's top ten — so tearing up a working SEO program to "do AEO instead" is self-harm. Everything you built for Google is the floor AEO stands on.
What changes
The unit of competition changes from position to mention, and that reorders the levers. A mention of your brand on a page you do not control — a directory, an industry list, a Reddit thread, a YouTube video — does AEO work that a backlink alone does not, because models learn brand-category associations from mentions, linked or not. ChatGPT takes only 8–10% of its citations from Google's top ten, so the overlap between "ranks well" and "gets cited" is far smaller than most SEO reporting assumes.
Content economics invert too. SEO habit says longer and more comprehensive; the citation data says current, specific and answer-first. The monthly refresh replaces the annual pillar rewrite as the core content motion.
How to run both without doubling budget
Treat them as one program with two scoreboards. The same answer-first page serves a featured snippet and an AI citation; the same directory placement earns a referral link and a training-data mention; the same YouTube video ranks in Google and drives ChatGPT visibility at the strongest correlation measured (0.737). What splits is measurement — rankings for SEO, repeated prompt testing per platform for AEO — and the refresh cadence, which AEO forces monthly.
Should I stop investing in SEO?
No. Retrieval feeds on ranking pages, and classic search still carries most commercial traffic today. The mistake is the opposite one: keeping a pure-SEO program while buyers migrate to assistants, and never measuring what those assistants say about you.
Can my current SEO agency just do AEO too?
Ask them three questions: which prompts do they test monthly, on which platforms, and what is your mention strategy off-site? If the answers are rankings, Google, and backlinks, they are describing SEO. Some agencies genuinely run both; the test is whether they measure answers, not positions.
Does domain authority matter for AI citations?
It correlates, but weaker than mentions do. ChatGPT's citations skew to high-authority publishers, yet Ahrefs found branded mentions (0.664) beat domain rating as a predictor of AI visibility. A well-mentioned small firm outperforms an unmentioned large one.
Which should a small business start with?
The AEO-first sequence is usually cheaper: fix crawler access, publish answer-first pages for the questions you already get asked, and win the two or three directory placements assistants cite in your category. All of it also improves your classic SEO. Then expand whichever channel the numbers reward.
Last reviewed 23 August 2026