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Free AI visibility checker: see how AI talks about your brand

A free AI visibility checker answers one uncomfortable question: when a buyer asks an AI assistant who to choose, do you show up? Most brands have never run that test. This page gives you two free ways to do it in the next ten minutes, and explains what to do with what you find.

Daniel Arons, Co-founder and CEO of Aethon AI
Daniel Arons · Co-founder & CEO, Aethon AI
Eight years building digital marketing programs across SaaS, financial services, and consumer brands · Updated July 2026

The fastest check costs nothing: ask the assistants yourself

Open ChatGPT, Gemini, Claude and Perplexity and ask each one the question your real buyers ask. Not your brand name. The moment. A med spa should ask what the best med spa near their city is for first-time Botox. A SaaS founder should ask which tool to pick for their exact use case. Write down who gets named, in what order, and what reasons the assistant gives.

Run the same prompt twice on different days. Answers shift as models retrain and re-crawl sources. One clean mention means little. A pattern of mentions, or a pattern of absence, is the signal.

Then score your readiness with the GEO Grader

Our GEO Grader is a free twenty-point checklist that scores how ready your site is to be cited by AI assistants. It covers the four layers that decide citations: whether your pages answer questions directly, whether your structure is machine-readable, whether trusted third-party sources mention you, and whether your entity information is consistent across the web.

It takes about five minutes and gives you an instant score with a verdict. No email required for the score itself. Most first-time scores land under ten out of twenty, which is normal and fixable.

What a checker can and cannot tell you

Any free checker, ours included, is a snapshot. It tells you whether you appear, roughly how favorably, and which competitors own the answers today. It cannot tell you why at the source level, track movement week over week across dozens of buying moments, or do the work that changes the answers.

That gap is where paid AI visibility platforms and agencies live. Before spending money, use the free checks to establish a baseline. If you are absent from the moments that drive your revenue, you have a case for going deeper. If you dominate them already, you mostly need monitoring.

Why tracking AI visibility feels so inconsistent

The same prompt can produce different brand lists in ChatGPT, Gemini, Claude and Perplexity, and different answers within the same assistant on different days. That is not a flaw in your checker. Assistants sample sources, personalize by context, and update constantly.

The practical fix is to test moments rather than single prompts, run checks on a schedule rather than once, and judge trends rather than snapshots. Our research across 1,200 buyer moments found that consistent presence across variations of a question is what separates brands that get recommended from brands that appear occasionally by luck.

From free check to fixed answers

If your check comes back thin, the free audit is the next step. We run your top buyer questions through the four major assistants and send back exactly how you appear, what is wrong or missing, and what it would take to fix it. From there, the work is content that answers real questions, structure that machines can parse, and citations from sources assistants trust.

Checking is free. Staying invisible is not. Every week you are absent from AI answers, the recommendation goes to someone else.

Frequently asked questions

What is a free AI visibility checker?

A free AI visibility checker is a tool or method that shows whether AI assistants like ChatGPT, Gemini, Claude and Perplexity mention or recommend your brand when users ask relevant questions. Free options include manually prompting the assistants and using scored checklists like the Aethon GEO Grader.

Is the Aethon GEO Grader really free?

Yes. The GEO Grader is a free twenty-point self-assessment that scores your AI visibility readiness across content, structure, authority and entity signals. You get your score and verdict instantly without payment.

Are there tools to test if my content shows up in AI search?

Yes. You can test manually by asking the assistants your buyers’ questions, use free checkers for a scored snapshot, or use paid platforms that track prompts across assistants on a schedule and show which sources the answers cite.

Why do AI visibility checkers give different results each time?

AI assistants sample sources, personalize responses and retrain frequently, so the same prompt can return different brands on different days. Reliable measurement tests multiple phrasings of the same buying moment over time rather than a single prompt once.

What should I do if my brand does not appear in AI answers?

Start with a free AI visibility audit to see exactly how you appear today. Then fix the gaps in order: publish content that directly answers buyer questions, add machine-readable structure, and earn mentions on the third-party sources assistants cite.

See where your brand stands in AI.

Book a 30-minute call and we run your top prompts through ChatGPT, Gemini, Claude, and Perplexity, live.