GEO (Generative Engine Optimization) is the practice of making your brand and content easier for generative AI search and answer engines to discover, understand, cite and recommend. It is also called AI search optimization or AEO (Answer Engine Optimization).
The term comes from a 2023 research paper, “GEO: Generative Engine Optimization”, by researchers including authors from Princeton University. It was later published at KDD 2024.
When someone asks an AI “Which dentist near Seattle speaks Chinese?”, they get a synthesized answer with a few source links, not ten blue links. Whether you appear in that answer, whether it is accurate, and which sources it relies on is what GEO is about.
How AI decides who to mention
Mechanisms differ by product, but there are roughly three layers. GEO works on all three:
01What the model learned
From training data. Brand facts that are public, consistent and mentioned in many places are more likely to be “remembered”.
02What it retrieves live
AI with search retrieves web pages before answering. Whether your pages can be crawled, state answers clearly and are machine-readable decides whether they get chosen as sources.
03What third parties say about you
Encyclopedias, map listings, Q&A communities, media and review sites are often the main sources AI cites, and the basis for deciding who a brand is.