What Is a GEO Visibility Score and What Does It Mean?

Imagine you're at a dinner party and someone asks a chef, "who's the best butcher in town?" The chef doesn't pull out a directory and read every listing. They answer from memory, based on butchers they've personally dealt with, whose names come to mind easily, and who they'd feel comfortable vouching for out loud in front of other people.

That's roughly what's happening when someone asks ChatGPT or Gemini "who's a good [whatever] near me" or "what's the best tool for this task." The model isn't scanning a phone book. It's generating an answer from patterns in what it's read and, increasingly, from live retrieval of a handful of sources it trusts enough to summarize confidently. If your business isn't part of that mental shortlist, in that language, with that level of clarity, you don't get mentioned. Not because you're bad at what you do. Because the model has never been given a clean, confident reason to bring you up.

A visibility score is an attempt to measure, systematically, whether you're on that shortlist and how good your spot on it is.

OMG's visibility score runs from 0 to 100 and is built from four weighted pieces, based on running real test prompts, the kinds of questions your actual customers would type, against AI tools and scoring what comes back.

Mention rate, 40 percent of the score. This is the most basic question: when someone asks a relevant question, do you show up in the answer at all? This is weighted heaviest because it's the gate everything else passes through. You can't have good share of voice or position if you're simply absent.

Share of voice, 30 percent of the score. When you do show up, are you the only business mentioned, or one of five? If an AI answer names four competitors and mentions you as an afterthought, your share of voice is thin even though your mention rate technically counts. This tracks how much of the airtime in an answer you're actually getting relative to competitors.

Position, 20 percent of the score. Where you land within the answer matters. Being the first business named in a ChatGPT response reads very differently than being buried in a comma separated list at the end. This mirrors something search marketers have understood for a long time, that being present isn't the same as being prominent.

Sentiment, 10 percent of the score. How is the mention framed? Neutral or positive mentions score better than lukewarm or backhanded ones. This is the smallest slice on purpose, since raw visibility matters more than tone in most buying decisions, but tone still shifts whether a mention actually helps you.

Those four pieces get combined into one 0 to 100 number, checked weekly, so you can watch it move over time instead of guessing.

A score in the 0 to 20 range usually means AI tools essentially don't know you exist for the questions that matter to your business. This is extremely common and not a sign of failure, it's just the default state for most small and mid-sized businesses right now, since most websites weren't written with any of this in mind.

A score in the 20 to 40 range typically means you show up occasionally, often in long lists, rarely first, and the AI's confidence about you reads as thin. This is usually a sign your website has some of the right information somewhere, but it's scattered, vague, or hard for a model to pull a confident, specific statement from.

A score in the 40 to 65 range is a solid working position. You show up with reasonable consistency for your core topics, you're usually named alongside real competitors rather than absent entirely, and sentiment tends to be neutral to positive. Most businesses that have done real, deliberate work (clear service pages, FAQs answering real questions, basic schema, a maintained llms.txt) land here.

A score in the 65 to 85 range means you're a go-to answer for your core topics most of the time. You're often named first or among the first, share of voice is strong, and the tone tends to be favorable. This is usually the result of sustained, specific content work over months, not a one time fix.

A score above 85 is rare and usually belongs to businesses with a very narrow, well defined niche and an unusually clean, specific web presence, or larger brands with a lot of independent third party content reinforcing them. It's a good target, not a baseline expectation.

JamShare, the music sharing app OMG worked with (covered in fuller detail in our "What Is GEO" post), came to us with a visibility score in the low twenties. Over a few weeks of rewriting core feature pages, publishing comparison FAQs, and cleaning up llms.txt and basic schema, their score climbed steadily out of the low range into a solid working position, and new user signups started naming ChatGPT as their discovery channel in onboarding surveys.

Traditional search rankings can take months to shift because of how indexing and trust signals accumulate over time. AI visibility can move faster in both directions, because models are frequently retrieving fresher information and because a small number of clear, well structured pages can meaningfully change what a model has available to quote.

It's worth pairing that speed with an honest caveat. A January 2026 SparkToro study led by Rand Fishkin and Patrick O'Donnell of Gumshoe.ai, running 2,961 prompt tests across ChatGPT, Claude, and Google AI with 600 volunteers in 12 categories, found that repeating the exact same brand-recommendation prompt 100 times gives you less than a 1-in-100 chance of getting an identical list back (SparkToro, "New Research: AIs Are Highly Inconsistent"). That means a visibility score is a real, useful trend line, not a precise, stable ranking the way a Google position is. Watch the direction over weeks. Don't over-read any single day's number.

It can't guarantee that being mentioned once means you'll be mentioned again next week. It can't tell you the exact algorithmic reason a model chose to cite you, because that reasoning is opaque even to the companies that build these models. And for some categories, there's no single "correct" answer for the model to converge on, which means even a well optimized business will see some natural noise in its score from week to week. None of that makes the score meaningless. It just means it should be read as a trend, not a verdict.

One more thing worth being blunt about: visibility scores from different providers are not comparable to each other. A 62 from OMG is not the same thing as a 62 from a different GEO tool, because different providers run different prompt sets and weight the four pieces differently. Don't cross-shop the raw number. Watch how your own score moves over time. And some week-to-week movement in either direction is normal noise, not necessarily a sign that something broke or improved.