Generative Engine Optimization
Also: GEO, AI Search Optimization, LLM Optimization, Answer Engine Optimization, AEO, Optimisation pour moteurs génératifs, Optimierung für generative Suchmaschinen
The practice of making your brand and content visible and citable inside AI-generated answers from tools like ChatGPT, Gemini and Perplexity.
What It Is
Generative Engine Optimization (GEO) is the discipline of getting your brand, products and content surfaced inside answers produced by generative AI systems. When a customer asks ChatGPT, Gemini, Perplexity or Google's AI Overviews for a recommendation, the model summarizes and cites a small set of sources rather than showing ten blue links. GEO is the work of making sure your organization is among the sources the model quotes and trusts. Where classic SEO optimizes for ranking positions on a results page, GEO optimizes for inclusion in a synthesized answer.
Why it matters
An AI answer usually names two or three brands, not a full page of options. If a rival is cited and you are not, you never enter the consideration set, and the buyer may never click through to compare. Zero-click behavior means the model becomes the intermediary between your brand and the customer, so invisibility inside AI answers is a direct pipeline and revenue risk. For a CMO this reshapes demand generation; for a CFO it introduces a channel whose traffic and attribution look different from paid or organic search. A CMO who asks "what does ChatGPT say about our category?" and finds only competitors has a concrete GEO problem to fund and fix.
How it works
GEO combines several levers. You publish clear, factual, well-structured content that models can extract cleanly, using explicit headings, definitions and comparison tables. You build citations and mentions on the third-party sources these models trust, such as reputable reviews, industry publications and structured data. You keep facts about your company consistent across the web so the model does not hallucinate or pick a competitor's framing. You then monitor how AI engines actually describe your brand and category, treating those answers as a measurable surface you test and improve over time. Practically, a team runs a set of buyer questions through the major engines each month, records which brands are cited, and works to close the gaps.