Glossary · Mar 15, 2026 · 4 min read

What is Answer Engine Optimization (AEO)?

Answer Engine Optimization (AEO) is the practice of optimizing content to appear in AI-generated answers from platforms like ChatGPT, Claude, Perplexity, and Gemini.

Orbilo Team

Definition

Answer Engine Optimization (AEO) is the practice of optimizing a brand's content and online presence to appear in AI-generated answers. Unlike traditional SEO, which focuses on ranking in search engine results pages, AEO focuses on being mentioned, cited, and recommended by AI assistants like ChatGPT, Claude, Perplexity, Grok, and Gemini.

Why AEO matters

AI assistants are rapidly becoming a primary research tool for consumers and business buyers. When someone asks ChatGPT "What's the best project management tool?", the AI generates a direct answer — often recommending specific brands. If your brand isn't mentioned in that answer, you're invisible to that potential customer.

Key statistics:

  • AI Overviews now appear in ~45% of Google searches
  • Over 200 million people use ChatGPT weekly
  • 46% of B2B buyers research vendors using AI assistants before visiting websites

How AEO works

AEO involves optimizing across several dimensions:

  1. Content authority — Creating comprehensive, well-structured content that AI models reference during training and retrieval
  2. Structured data — Implementing JSON-LD schema markup and llms.txt files to help AI systems understand your brand
  3. Third-party presence — Building mentions across authoritative sources like Wikipedia, review sites, and industry publications
  4. Brand monitoring — Tracking how AI platforms currently mention your brand and competitors to identify gaps

AEO vs SEO

| Aspect | SEO | AEO | |--------|-----|-----| | Goal | Rank in search results | Be mentioned in AI answers | | User action | Click to website | Get answer directly | | Key platforms | Google, Bing | ChatGPT, Claude, Perplexity, Gemini | | Metrics | Rankings, CTR, traffic | Mention frequency, sentiment, positioning | | Content focus | Keywords, backlinks | Authority, structure, citability |

For a detailed comparison, see AEO vs SEO: Key Differences.

Tools for AEO

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