---
title: "What Is AI Visibility (Share of Voice)? Definition & How to Measure"
description: "AI visibility is how often and how prominently AI engines name your brand when answering — usually a share-of-voice score across a prompt panel."
canonical: https://aiovsseo.com/glossary/ai-visibility.html
date: 2026-06-07
---
# What is AI visibility (share of voice)?

Definition

AI visibility is how often and how prominently AI engines — ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews — name your brand or content when they answer. It is most often measured as a share-of-voice score: your appearances and citations as a percentage of a tracked set of prompts.

**AI visibility** is the AI-era counterpart to search rankings: instead of "where do I rank for this keyword," it asks "when an engine answers this question, how often is my brand named, and how prominently?" Because answers vary by session and engine, it is measured statistically — as a **share of voice** across a fixed panel of prompts run over time.

## How it's calculated

Run a frozen set of buyer prompts across the engines, log whether you were named, linked, and which competitors were cited, then compute your appearances ÷ prompts and your share of all citations shown. The trend matters more than any single snapshot — the source set behind a Google AI Overview rotates roughly every two days.

## Capacity vs visibility

Don't confuse AI visibility with readiness. A [readiness checker](/check.html) measures *capacity* — whether you can be cited. AI visibility measures whether you actually are. See [how to measure AI discoverability](/articles/measuring-ai-discoverability.html).

## Frequently asked questions

**How is AI visibility different from keyword rankings?**

Rankings measure a fixed position in a list of links; AI visibility measures how often an engine names you in a generated answer across many prompts. It is a probabilistic share-of-voice score, not a single rank, because AI answers vary by session, engine and time.

**How do you measure AI visibility?**

Run a frozen panel of prompts across ChatGPT, Claude, Perplexity, Gemini and Google AI surfaces, log who is named and linked, and track your share of voice month over month. Sampled third-party trackers automate this; your own server logs and AI referral traffic give a first-party census.