Guide · Updated 2026

What is Answer Engine Optimization (AEO)?

AEO is the question-level view of showing up in AI. Where GEO covers the whole picture, AEO zooms in on the specific questions buyers ask and whether your brand is the answer. This guide defines it and shows where it fits.

What is Answer Engine Optimization?

Answer Engine Optimization (AEO) is the practice of optimizing your content so your brand is the answer when buyers ask an AI assistant a direct question about your category. The unit of work is the question: which buyer questions you appear in, and whether the assistant recommends you.

Answer engines (ChatGPT, Perplexity, Gemini and Google's AI answers) return one synthesized response to a question instead of a list of links. AEO is how you make sure that response names you when the question matters to a buyer.

How is AEO different from GEO, LLMO and SEO?

SEO targets search rankings. GEO is the umbrella for being featured by AI. LLMO focuses on being cited as a source. AEO focuses on the question: showing up as the answer to the specific things buyers ask. They're complementary angles on the same outcome.

The practical difference is where you start. AEO starts from the buyer's questions, especially high-intent ones like comparisons and selection criteria, and works backwards to the content that wins them.

Which questions matter most for AEO?

The questions closest to a decision matter most: 'best X for Y', 'X vs Y', 'how to choose an X', and 'is X worth it'. These are where an assistant shortlists brands, so being the answer there has the most direct effect on whether you enter the buyer's consideration set.

  • Comparison questions ('X vs Y', 'best tool for Y').
  • Selection-criteria questions ('how to choose an X').
  • Use-case questions ('best X for European SMBs').
  • Trust questions ('is X reliable', 'X alternatives').

How do you do AEO?

Find the buyer questions where assistants name competitors and not you, then publish content that answers each question directly, with a concise answer up top, question-style headings, and your brand named. Add FAQ schema, keep it current, and re-measure which questions you now win.

Citanto's content cycle is built around exactly this: it maps the questions where you're under-cited and generates the content to win them, then tracks the change by question intent.

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Frequently asked questions

Is AEO the same as GEO?

AEO is a focused part of GEO. GEO (Generative Engine Optimization) is the umbrella for being featured by AI; AEO (Answer Engine Optimization) is the question-level slice, being the answer to specific buyer questions. The tactics overlap, so the terms are often used together.

Is AEO just FAQ pages?

FAQ pages help, because they map cleanly to questions, but AEO is broader. It's about structuring all your content so it answers the questions buyers ask AI, with concise answers, question-style headings and your brand named, not only a list of FAQs.

How is AEO measured?

By question intent: track which categories of buyer question (comparison, pricing, selection, trust) name your brand in AI answers, and which name competitors instead. That per-question view tells you where to focus, rather than a single aggregate score.