Glossary

The vocabulary of AI-era marketing.

Plain definitions of the terms MarkGrid measures. Each one answers the question directly in the first sentence.

Model Share

Model Share is the percentage of AI-generated answers, within a defined prompt set, in which a brand is mentioned. It is the generative-search analogue of share of voice, measured across ChatGPT, Gemini, Perplexity, Claude and Copilot.

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Generative Engine Optimization (GEO)

Generative Engine Optimization (GEO) is the practice of structuring content, entities and citations so that AI answer engines retrieve and cite a brand, rather than optimising purely for a ranked list of blue links.

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Answer Engine Optimization (AEO)

Answer Engine Optimization is the practice of structuring content so it can be extracted as a direct answer — in AI assistants, featured snippets and voice results — rather than only ranked as a link.

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Neuro-Marketing Predictive Scoring

Neuro-Marketing predictive scoring forecasts creative performance from attentional and psychological signals — saliency, emotion, memorability, cognitive load and aesthetic fit — before media spend is committed.

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Creator Real-Time Audit

Creator Real-Time Audit is pre-publication brand-safety and compliance scoring of influencer content, run before the content goes live rather than after.

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