135 definitions

AEO / GEO / LLMO Glossary

This glossary brings together the essential terms to understand and master visibility on conversational AIs. Whether you're discovering AEO or looking to deepen a technical concept, each definition is designed to be clear, actionable and directly usable.

135
Defined terms
8
Categories
100%
English
A

A

Strategy

AEO (Answer Engine Optimization)

AEO (Answer Engine Optimization) is a strategy for optimizing content to be cited directly by AI assistants and voice search. Unlike SEO which targets search result rankings, AEO aims to position your content as the source of answers provided by ChatGPT, Claude, Gemini, and other conversational AIs.

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Strategy

AEO Audit (Answer Engine Optimization)

An AEO audit analyzes your brand's visibility in AI answer engine responses (ChatGPT, Claude, Perplexity, Gemini). It identifies if you're cited, how you're presented, and improvement opportunities.

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Regulation

AI Act (EU Regulation)

The AI Act is the European regulation on artificial intelligence, adopted in 2024. It classifies AI systems by risk and imposes obligations on developers and deployers of AI.

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AI Technical

AI Agent

An AI agent is an autonomous artificial intelligence system capable of planning, executing actions and using external tools to accomplish complex tasks iteratively.

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AI Metric

AI Average Position

The AI Average Position indicates the average rank at which your brand is cited in conversational AI responses, from 1st position (most visible) to lower positions.

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SEO Strategy

AI Brand Monitoring

AI Brand Monitoring refers to the practices and tools used to track what conversational AI systems (ChatGPT, Claude, Gemini, Perplexity) say about a brand, including hallucination detection and reputation tracking.

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Métriques

AI Brand Safety

AI Brand Safety is a set of checks that evaluate how AI models present a brand. It detects negative mentions, URL hallucinations, problematic associations and reputation risks in language model responses.

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Metric

AI Citation

An AI citation is when an AI assistant references your brand, website, or content as a source. Citations are the ultimate AEO goal - being explicitly mentioned and recommended by AI.

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Regulation

AI Compliance

AI compliance refers to adhering to regulations governing artificial intelligence use, including the AI Act, GDPR for data, and industry-specific rules. Essential for businesses using or being referenced by AI.

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AI Metric

AI Conversion Rate

AI Conversion Rate measures the percentage of visitors from conversational AI that complete a desired action. In 2026, AI referral traffic converts at 14.2% vs 2.8% for Google — 5 times higher.

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Technical

AI Indexing

AI indexing is the process by which your content becomes accessible to AI systems - either through training data, RAG databases, or real-time web access. Different from traditional search indexing.

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AI Metric

AI Market Share

AI Market Share refers to the distribution of traffic and users across different conversational AI platforms. In 2026, ChatGPT dominates with 68% market share, followed by Gemini (18.2%) and Perplexity (15%).

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Strategy

AI Optimization

AI optimization encompasses all strategies aimed at improving a brand's visibility in artificial intelligence responses. It includes AEO, GEO, and LLMO.

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Platform

AI Overviews (Google SGE)

AI Overviews are Google's AI-generated summaries displayed at the top of search results. Part of the Search Generative Experience (SGE), they synthesize information from multiple sources.

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Strategy

AI SEO Audit

An AI SEO audit combines traditional SEO analysis with AI visibility evaluation. It measures your presence on Google AND on ChatGPT, Claude, Perplexity, Gemini.

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Metric

AI Share of Voice

AI Share of Voice measures how often your brand is mentioned by AI assistants compared to competitors. A key AEO metric for tracking visibility across ChatGPT, Claude, Perplexity, and Gemini.

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Métriques

AI Share of Voice

AI Share of Voice measures a brand's visibility percentage compared to competitors in AI responses. It's the key GEO metric, equivalent to classic Share of Voice applied to LLM responses.

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Technical

AI Tracking

AI tracking is the process of detecting and recording visits made by artificial intelligence bots (GPTBot, ClaudeBot, PerplexityBot, etc.) to a website, as well as traffic coming from AI platforms (referrals).

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AI Audit

AI Visibility Audit

An AI visibility audit is a comprehensive analysis of a brand's presence and reputation in conversational AI responses. It evaluates how ChatGPT, Claude, Gemini and Perplexity perceive and present your company.

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AI Audit

AIO Audit (AI Optimization)

An AIO audit (AI Optimization) analyzes a brand's visibility in AI responses. AIO is a generic acronym used by some professionals as a synonym for AEO, GEO or LLMO audit.

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AI Audit

AISO Audit (AI Search Optimization)

An AISO audit (AI Search Optimization) evaluates a brand's visibility in AI search results. The term AISO emphasizes the 'search' aspect of conversational AI, as opposed to traditional Google search.

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API Development

API Key

An API key is a unique identifier used to authenticate requests sent to an API. It allows the server to identify the application or user making the call.

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Standards

AQA Basic

AQA Basic is the first compliance level of the AQA (AI Question Answer) standard. It requires basic FAQPage Schema.org markup with structured questions and answers.

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Standards

AQA Full

AQA Full is the most advanced level of the AQA standard. It includes all Standard requirements plus update frequency (updateFrequency), declared compliance level and the link to the AQA JSON-LD context.

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Standards

AQA Standard

AQA Standard is the second level of the AQA standard. It adds date metadata (dateCreated, dateModified), source citation and linguistic context to FAQs.

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Content

Answer Capsule

An Answer Capsule is a concise, standalone text block designed to be directly extracted by AI assistants. It provides a complete answer in 2-3 sentences, optimized for AI citation.

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Concept

Answer Engine

An Answer Engine is a search system providing direct answers rather than links. Perplexity, ChatGPT, and Google AI Overviews are answer engines. AEO specifically optimizes for these systems.

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AI Provider

Anthropic

Anthropic is the American AI company founded by former OpenAI researchers, creator of Claude. A pioneer in responsible AI and Constitutional AI, Anthropic develops Claude models recognized for their safety, reliability and advanced reasoning capabilities.

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Technical

AQA (AI Question Answer)

AQA (AI Question Answer) is an open-source (MIT) specification extending Schema.org FAQPage with AI-optimized metadata. It enables AI answer engines (ChatGPT, Claude, Perplexity) to evaluate the freshness, reliability and traceability of your FAQ answers.

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C

C

Platform

ChatGPT

ChatGPT is OpenAI's conversational AI assistant, powered by the GPT-4 model. Launched in November 2022, it revolutionized public access to AI and popularized the use of conversational AI assistants.

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Platform

ChatGPT Audit

A ChatGPT audit specifically analyzes how your brand appears in ChatGPT (OpenAI) responses. It evaluates mentions, sentiment, information accuracy, and competitive positioning.

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Platform

Claude (Anthropic)

Claude is the conversational AI developed by Anthropic, founded by former OpenAI researchers. Claude stands out for its large context window (200K tokens), safety focus, and nuanced response quality.

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Platform

Claude Audit (Anthropic)

A Claude audit analyzes your visibility on Anthropic's AI assistant. Claude stands out for its extended context window (200K tokens) and safety-focused approach, attracting a professional audience.

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Crawlers

ClaudeBot

ClaudeBot is Anthropic's web crawler that scans the internet for Claude's data. Identifiable by the User-Agent "ClaudeBot", it is configurable via robots.txt.

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AI Provider

Cohere

Cohere is a Canadian AI company specializing in enterprise solutions. Co-founded by Aidan Gomez, co-author of the original Transformer paper, Cohere provides generation, semantic search and RAG models for Fortune 500 companies.

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AI Technical

Context Window

The context window is the maximum amount of text (measured in tokens) that a language model can process at once, including both input and output.

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Technical

Crawl (Web Indexing)

Crawling is the automated process where bots explore the web to discover and index content. For AEO, being crawlable by AI data sources (Common Crawl, etc.) is essential to be included in training data.

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Feature

Client Portal (Read-Only Access)

The Client Portal is a secure read-only space allowing agency clients to view their GEO audit results. Customized with the agency's visual identity (white-label), it provides direct access to scores, recommendations and trends without requiring technical skills.

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GEO

Citation Readiness

Citation Readiness evaluates how well-structured content is to be cited by AI models. It considers Schema.org markup, source clarity, topical authority and E-E-A-T signals. Citation-ready content is structured so LLMs can extract reliable information and integrate it into their responses.

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G

G

AI Audit

GAIO Audit (Generative AI Optimization)

A GAIO audit (Generative AI Optimization) evaluates a brand's visibility in generative AI responses. The term GAIO combines GEO and AIO concepts to emphasize optimization specifically for generative AI like ChatGPT, Claude and Gemini.

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Strategy

GEO (Generative Engine Optimization)

GEO (Generative Engine Optimization) is the optimization of content specifically for generative AI systems that synthesize information to produce unique responses. GEO focuses on how AIs understand, process, and reformulate your content in their answers.

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Strategy

GEO Audit (Generative Engine Optimization)

A GEO audit (Generative Engine Optimization) is a comprehensive analysis of a brand or website's visibility in generative search engine responses like ChatGPT, Claude, Gemini and Perplexity. It measures how your content is cited, rephrased and recommended by AI.

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Produit

GEO Credit

A GEO Credit is the unit of measurement used by AI Labs Audit for audit pricing. Each AI model queried consumes a certain number of credits based on its complexity.

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Regulation

GPAI (General Purpose AI)

GPAI (General Purpose AI) is a regulatory term from the EU AI Act for AI systems capable of performing various tasks (like GPT-4, Claude). GPAI providers have specific compliance obligations.

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Crawlers

GPTBot

GPTBot is OpenAI's web crawler that scans the internet to feed ChatGPT's data. Identifiable by the User-Agent "GPTBot/1.0", it can be allowed or blocked via robots.txt.

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Platform

Gemini (Google)

Gemini is Google's multimodal AI model, integrated into Google Search, Workspace, and as a standalone assistant. Gemini represents Google's response to ChatGPT and directly impacts search results.

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Platform

Gemini Audit (Google)

A Gemini audit analyzes your visibility on Google's multimodal AI, integrated into Google Search via AI Overviews. Gemini directly impacts your visibility in the Google ecosystem.

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Crawlers

Google-Extended

Google-Extended is Google's crawler specifically dedicated to AI model training (Gemini). Distinct from classic Googlebot, it can be blocked separately via robots.txt.

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AI Model

Grok (xAI)

Grok is the AI chatbot developed by xAI, Elon Musk's company. Integrated into X (formerly Twitter), Grok has real-time access to X posts and web search. With 64 million monthly users, Grok is a major player in AI search.

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Concepts

Grounding (AI)

Grounding is the process by which a language model anchors its responses in verifiable factual data. It reduces hallucinations by connecting responses to concrete sources.

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GEO

GEO Checklist (26-Point Technical Audit)

The GEO Checklist is a 26-point technical audit designed to optimize a website's visibility with AI models. 18 points are auto-verified (robots.txt, llms.txt, Schema.org, SSR, sitemap) and 8 expert recommendations complete the analysis (E-E-A-T, Wikidata, content strategy).

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GEO

GEA (Generative Engine Answer)

GEA (Generative Engine Answer) is a variant term for GEO, focusing specifically on optimizing brand presence in AI-generated answers. Used interchangeably with GEO in the industry, it emphasizes the outcome: being in the AI's answer.

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L

L

Technical

LLM (Large Language Model)

An LLM (Large Language Model) is an AI model trained on massive amounts of text to understand and generate human language. Examples include GPT-4, Claude, Gemini, Llama. LLMs power modern AI assistants.

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Strategy

LLMO (Large Language Model Optimization)

LLMO (Large Language Model Optimization) is a technical approach to optimize content for large language models (LLMs) like GPT-4, Claude, or Llama. LLMO focuses on how LLMs process text during training and inference.

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AI Audit

LLMO Audit (Large Language Model Optimization)

An LLMO audit (Large Language Model Optimization) evaluates a brand's visibility in large language model responses like ChatGPT, Claude, Gemini and Perplexity. It's a synonym for GEO/AEO audit focused specifically on LLM optimization.

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AI Model

Llama (Meta)

Llama is the open-source large language model family developed by Meta. With 1.2 billion cumulative downloads, Llama is the world's most adopted open-source LLM, powering Meta AI and thousands of third-party applications.

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SEO Strategy

Local Search

Local search refers to geolocated queries aimed at finding businesses, shops or services in a specific geographic area, on both Google and conversational AI.

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GEO

llms.txt (File for LLMs)

The llms.txt file is a text file placed at a website's root to provide structured context to language models (LLMs). Analogous to robots.txt for search engines, it is designed for AI comprehension: describing the company, its products, expertise and key information AIs should know.

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P

P

Produit

PDF Premium

PDF Premium is an enriched PDF report generated by AI Labs Audit with AI synthesis, in-depth analyses, comparative charts and personalized recommendations. Available in white label.

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Platform

Perplexity AI

Perplexity AI is an AI-powered search engine that combines real-time web search with LLM response generation. Unlike ChatGPT, Perplexity always cites its sources, making it a key platform for AEO.

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Platform

Perplexity Audit

A Perplexity audit analyzes your visibility on the AI search engine that systematically cites its sources. Perplexity generates direct traffic as users click on cited sources.

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Crawlers

PerplexityBot

PerplexityBot is Perplexity AI's web crawler that indexes the web in real-time to provide sourced answers. Identifiable by the User-Agent "PerplexityBot".

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SEO

Position Zero

Position Zero refers to the Featured Snippet placement above organic search results. In the AI era, it represents direct answer placements that bypass traditional rankings.

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AI Metric

Presence Rate

The Presence Rate measures the percentage of AI responses in which your brand appears, across all questions, reflecting your overall visibility with artificial intelligences.

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Concept

Prompt

A prompt is the text instruction or question given to an AI to get a response. Prompt quality directly influences response quality. In AEO, understanding prompts helps optimize content for how users query AIs.

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S

S

Métriques

AI Semantic Perception

AI Semantic Perception analyzes the words and concepts that AI models associate with a brand. It reveals how language models perceive and describe a company, its products and positioning.

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API Development

SDK (Software Development Kit)

An SDK is a set of tools, libraries and documentation provided by a service to facilitate the integration of its API into an application.

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SEO Strategy

SEO (Search Engine Optimization)

SEO (Search Engine Optimization) is the set of techniques aimed at optimizing a website's visibility in search engine results like Google or Bing.

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Technical

Schema Markup

Schema markup is structured data code added to web pages helping search engines and AIs understand content. Using Schema.org vocabulary improves how AI interprets your information.

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AI Metric

Sentiment Score

The Sentiment Score evaluates whether conversational AIs talk about your brand positively, neutrally or negatively, reflecting your company's perception by artificial intelligences.

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Métriques

Source Authority

Source Authority is a metric that measures which URLs AI models cite as sources when mentioning a brand. It identifies whether AIs recommend the right pages or third-party/competitor sources.

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SEO Technical

Structured Data

Structured data is a standardized markup format (Schema.org) that helps search engines and AI understand web page content precisely and unambiguously.

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API Development

Swagger (OpenAPI)

Swagger is a set of open source tools for documenting, designing and testing REST APIs. The OpenAPI specification (formerly Swagger) is the most widely used API description standard in the world.

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AI Technical

System Prompt

A system prompt is a hidden instruction given to a language model before any user interaction, defining its behavior, personality and operating rules.

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Regulation

Systemic Risk (AI)

Systemic risk in AI refers to risks that could affect society at large - misinformation, manipulation, discrimination at scale. The AI Act has specific provisions for high-risk AI systems.

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GEO

Showcase Page (AI Landing Page)

The Showcase Page is an auto-generated landing page created by AI Labs Audit for each client, hosted on ailabsaudit.com. It includes Schema.org markup, structured FAQ, Google reviews, 4-language translations and IndexNow notification. Its primary goal: creating premium contextual backlinks that boost the brand's GEO visibility with AI models.

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GEO

STS Detection (Semantic Text Similarity)

STS (Semantic Text Similarity) detection measures the semantic closeness between AI-generated responses and a brand's own content. A high STS score indicates the AI heavily relies on the brand's content to formulate its answers, signaling strong GEO influence.

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Technical

SSR (Server-Side Rendering)

SSR (Server-Side Rendering) is a technique where HTML is generated on the server before being sent to the browser. It is critical for AI bot crawlability since most bots cannot execute JavaScript. Without SSR, a React, Vue or Angular site is invisible to GPTBot, ClaudeBot and other AI crawlers.

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GEO

Scheduled Audit (Automated Recurring Audit)

Scheduled Audit is an automated recurring GEO audit — daily, weekly or monthly. It enables tracking AI visibility evolution over time and measuring the impact of GEO recommendations implemented. Results feed trend charts accessible from the dashboard.

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