GEO and LLMO glossary

Short definitions for terms used in UITruth's interface and articles.

Brand: A shop, company, or service name. Not limited to companies -- it covers place names, organization names, and individual or creator names too: anything you want to look for within an AI's answer.
Cited source: A website or page the AI referenced while building its answer.
fan-out: Related or expanded queries generated by the AI from the original question. They are not queries entered by users and do not indicate user interest or behavior.
Share (share of voice): Within the same question, the ratio of how often you and your competitors were each brought up.
GEO: Generative Engine Optimization: work intended to help a brand or its information be appropriately referenced in generative AI answers.
AEO: Answer Engine Optimization: structuring information so it can be found as a direct answer in search and AI answer surfaces.
LLMO: LLM Optimization: work to make sure your brand appears correctly within a generative AI's answers. Think of it as the AI-era version of SEO. Difference from GEO: both name the same goal of being referenced appropriately in generative-AI answers, with little practical difference — LLMO is the common term in Japanese, GEO in English.
Prompt: The question text you send to the AI. UITruth registers this question text in order to measure it.