Glossary

Definitions of GEO, AAI, AI visibility, recommendation share, and the language of AI search.

GEO

Generative Engine Optimization — the practice of improving how AI systems describe and recommend your brand.

Generative Engine Optimization (GEO) is the discipline of earning visibility and recommendation inside AI systems like ChatGPT and Gemini. It blends content, positioning, authority, and structured information so AI models reliably surface your brand when it's relevant.

AAI

AI Authority Index — AuthorityLayer's single 0–100 score for how strongly AI systems recommend your brand.

AAI combines four pillars — Discovery (30%), Recommendation (25%), Coverage (25%), and Positioning (20%) — into one tracked score across five tiers from Low to Leading.

AI Visibility

Whether and how often AI systems surface your brand in relevant buyer conversations.

AI visibility measures presence — whether AI mentions you at all in the prompts that matter for your category. It is necessary but not sufficient: visibility without recommendation does not drive consideration.

Prompt Intelligence

The large-scale analysis of buyer-intent prompts and AI responses that powers AuthorityLayer's measurement.

AuthorityLayer continuously runs large-scale prompt intelligence across leading AI models, classifying prompts by intent and measuring how brands appear in the resulting responses.

Recommendation Share

Your share of recommendations in a competitive set, weighted by recommendation strength.

Recommendation share captures not just how often you appear but how strongly you are recommended versus your competitors when you do — combining share of voice with weighted recommendation strength.

AI Authority

The strategic position of being a trusted, frequently recommended brand inside AI systems.

AI Authority is the cumulative outcome of strong discovery, high recommendation, broad coverage, and clear positioning across leading AI models. It is the AI-era equivalent of category leadership.

AI-Powered Search

Search experiences that synthesize answers from AI models rather than returning ranked links.

AI-powered search includes AI assistants and AI-overview surfaces. They retrieve sources, synthesize an answer, and choose which brands to mention — replacing ranking with selection.