AI Visibility Glossary

Plain-English definitions for the terms that matter when measuring how AI assistants describe and recommend your brand.

• What is AEO (Answer Engine Optimization)?

  AEO (Answer Engine Optimization) is the practice of structuring your content so AI-powered answer engines — ChatGPT, Claude, Gemini, Perplexity — surface and cite your brand in their generated responses.

• What is GEO (Generative Engine Optimization)?

  GEO (Generative Engine Optimization) is the strategic discipline of influencing how generative AI engines — large language models like GPT-4, Claude, and Gemini — perceive, categorise, and recommend your brand.

• What is AI Brand Visibility?

  AI brand visibility is how often, how positively, and how authoritatively your brand appears in answers generated by AI assistants — ChatGPT, Claude, Gemini, Perplexity, and similar.

• What is an llms.txt file?

  An llms.txt file is a Markdown-formatted document placed at the root of a website (at /llms.txt) that summarises the brand's key facts for AI agents.

• What is a Brand Visibility Score (BVS)?

  Brand Visibility Score (BVS) is a composite metric measuring how often your brand appears in AI-generated answers, weighted by position within the response and consistency across major platforms.

• What is AI Share of Voice?

  AI Share of Voice is the percentage of category-relevant AI responses that name your brand, divided across all named competitors.