AEO vs SEO: what changes when buyers ask AI
SEO and AEO share DNA, but they measure different things and reward different work. Here is a clear breakdown of where they overlap, where they diverge, and how to run both.
If you have spent a decade getting good at SEO, AEO can feel both familiar and unsettling. The good news: your instincts about quality content and authority still matter. The catch: what you measure, and how you win, are genuinely different.
The core difference
SEO improves your position in a list of links on a results page. AEO improves whether an AI engine cites and recommends you inside a written answer, where there is often no list of links at all.
Key takeaway
SEO competes for a rank. AEO competes to be the recommendation. One is a position in a list; the other is a sentence in an answer.
Where they overlap
Strong, well-structured, genuinely useful content helps both. Clear authority signals, accurate information and good site structure make you easier to rank and easier to cite. If your SEO foundations are solid, you are not starting AEO from zero.
Where they diverge
- Measurement. SEO tracks rankings, clicks and impressions. AEO tracks citations, share of voice across engines, and how favourably you are described.
- The surface. SEO targets a single results page per query. AEO spans many engines, each of which synthesises answers differently.
- The unit of work. SEO often optimises a page for a keyword. AEO optimises your presence across the prompts and comparisons buyers actually ask.
- Volatility. AI answers can shift as models update, so AEO rewards teams who detect prompt shifts early rather than reacting late.
How to run both
Do not abandon SEO. Treat AEO as a parallel practice that reuses your content strength but measures a new outcome. Track AI citations alongside your rankings, watch which competitors win the answers you want, and forecast which moves will actually shift your citations before you spend.
The teams that win the next decade will not choose between SEO and AEO. They will run both, and measure each on its own terms.
The reporting discipline matters most. In SEO you learned to tie work to ranking changes. In AEO, tie each move to a forecasted and then measured change in citations, so brand and content spend is backed by evidence rather than opinion.
