Answer Engine Optimization (AEO) is the practice of making your brand the answer AI assistants give, not just a link they might list.
When someone asks ChatGPT, Gemini, Claude, or Perplexity a question, they get one synthesized answer, not ten blue links. There is no position two. Either the model names you, or you were never in the conversation. AEO is the discipline of earning that mention.
SEO optimizes pages for a ranking algorithm that scores relevance against a typed query. AEO optimizes your brand’s entire information footprint for models that synthesize an answer: what they parsed in training, what they retrieve at answer time, and how confidently they can cite you. Rankings are a list. Answers are a verdict.
Three inputs, roughly in order: citation-grade content in the places each model retrieves from, structured data the models can parse without guessing (schema markup, consistent entity facts), and third-party corroboration, meaning other trusted sources that repeat the same claims about you. One-off blog posts do very little. Consistent, verifiable signal compounds.
Most AEO tooling measures category prompts like “best CRM.” Aethon starts one step earlier, at the life moment that creates the need, then builds and ships the signal that wins it. Measurement is table stakes. Moving the answer is the product.