Generative Engine Optimization (GEO) is the practice of improving how often, and how accurately, a brand appears in answers written by AI systems. Those systems include ChatGPT, Perplexity, Claude, Gemini and Google's AI Overviews and AI Mode. GEO builds on ordinary SEO, because most AI answers are assembled from pages a search index has already found, but it adds attention to how content is retrieved in pieces, how a brand is described across the web, and how often it is mentioned by sources the models trust.
How GEO differs from classic SEO
Classic SEO aims for a ranked blue link that a person clicks. GEO aims for a sentence inside a generated answer, ideally with a link to your page beside it. The person may never visit a results page at all.
The two overlap heavily. An AI search tool that fetches live results usually starts from a web index, so a page that cannot be crawled, indexed or ranked has little chance of being used. Where GEO adds work is in what happens after retrieval: the model reads passages, compares sources and writes a summary, and some kinds of content survive that process better than others.
What GEO work usually includes
There is no published ranking formula for any AI answer engine, so GEO is a set of reasonable practices rather than a checklist with guaranteed results.
- Answering specific questions in self-contained passages that still make sense when quoted alone.
- Stating facts plainly: what the product does, who it is for, what it costs, what it integrates with.
- Keeping the brand's description consistent across its own site, review sites, directories and profiles.
- Earning mentions in the third-party sources that AI tools cite for your category, such as comparison articles, forums and review platforms.
- Making sure AI crawlers that power search features are allowed to fetch your pages.
- Tracking which prompts mention you, which cite you, and which competitors appear instead.
Why it matters for B2B SaaS
Software buyers increasingly ask an assistant questions like “what's the best tool for X for a team of 20” before they visit any vendor site. If your product is missing from those answers, you are missing from a shortlist you never saw.
The highest-value prompts for a SaaS company tend to be the same ones that matter in classic search: category comparisons, alternatives to a named competitor, integration questions and pricing questions. GEO effort is usually best spent there first.
Where the term comes from
The phrase was popularized by a 2023 research paper from Princeton and other institutions that tested how content changes affected visibility in generative answers. It has since become the common industry label, used alongside Answer Engine Optimization (AEO) and LLM optimization. The labels describe largely the same work.
Example
A fictional scheduling tool
Rotaflow, a made-up shift scheduling product, ranks reasonably for its own brand but never appears when people ask ChatGPT for “scheduling software for restaurants”. A review of the cited sources shows the answers lean on two listicles and a Reddit thread, none of which mention Rotaflow.
The team rewrites its restaurant use-case page so the first paragraph states who it serves and what it replaces, adds a plain pricing summary, and pitches its product to the authors of the cited listicles. It then tracks the same set of prompts monthly to see whether mentions change.
Common mistakes
Treating GEO as separate from SEO
If your pages are not indexed and do not rank, most AI search tools have nothing of yours to retrieve. Fix crawling, indexing and content quality first.
Chasing tricks
Hidden prompts, keyword-stuffed FAQ blocks and invented statistics may get noticed by models and by people. They also risk spam policies in Google Search, which feeds AI Overviews.
Measuring once
AI answers vary between runs, users and dates. A single screenshot tells you little. Track a fixed prompt set over time.
Questions
In practice they are used almost interchangeably. AEO is the older term and was often tied to featured snippets and voice assistants; GEO is more often used for LLM-written answers.
No. No AI search provider publishes how sources are chosen, and answers change between sessions. Anyone promising guaranteed placement is guessing.
Often you need clearer content more than new content. Many SaaS sites already have the right pages but bury the direct answer under marketing copy.
