Find out which competitors ChatGPT recommends instead of you.

We test ChatGPT, Claude, Gemini, and Perplexity on the buying queries in your category, then show you exactly where you are losing.

Your mention rate per AI model
The 5 buying queries you are losing
Which competitors are stealing visibility
A real report you can act on, not a teaser

Tested across

ChatGPTClaudeGeminiPerplexity

See a real sample audit·No signup to preview

What you get

The actual report. Not a teaser.

Verdict, scoreboard, per-LLM breakdown, competitor leaderboard, source citations, and a recommended action list. Real data, real brands, real numbers.

Sample LLM Visibility Audit report showing Liquid Death ranked #1 across 4 major LLMs

Open the full sample audit Or audit my brand

Brands already audited on this engine

Liquid DeathHexCladHimsWarby ParkerCasperHarry'sStitch FixTrue ClassicGrazaVercel

How it works

90 seconds. No setup. Real report.

Drop your domain

We auto-discover your brand, your top competitors, and the 5 buying queries real customers ask AI.

Watch the trial

ChatGPT, Claude, Gemini, and Perplexity all run live in front of you. Each one a judge.

Get the verdict

See your mention rate per AI, the queries you are losing, and which competitor is stealing your visibility.

Real findings, real brands

Watch a sample audit before you commit.

We ran the audit on Liquid Death so you can see exactly what you will get. Same format, same depth, same competitive breakdown.

See the Liquid Death audit

ChatGPT cited Liquid Death alongside Athletic Brewing for 'best sober-curious party drinks'

Claude named Spindrift and Waterloo for 'best canned waters' (no Liquid Death)

Perplexity ranked Liquid Death #1 for 'canned waters from independent brands'

Gemini named Athletic Greens and AG1 for 'wellness drinks gen-z buys' (no Liquid Death)

Built by

Dylan Ander, founder of Mentionstack

I built this because every brand owner I talked to wanted to know what AI says about them, but nobody had a real answer. The audit is free because we want you to see the gap. If you want help closing it, that is what Mentionstack does.

Founder, Mentionstack·32K+ subscribers on AEO Weekly·dylanander.com

Quick answers

Is this really free?: Yes. The audit costs us about $0.40 in API fees per run. We give it away because most brand owners have no idea AI is recommending their competitors, and we want you to see it. No credit card, no trial, no upsell during the audit.
What is the catch?: We hope you will like the data enough to want help with the problem. Mentionstack offers a done-for-you AI visibility service (we do the work to get your brand mentioned more by ChatGPT, Claude, etc.). The audit is yours either way.
How accurate is the data?: We test the live, public APIs of ChatGPT, Claude, Gemini, and Perplexity. Real queries, real responses, no simulation. The audit is a snapshot of how AI sees your category today.
What do you do with my data?: Your audit, your data. We do not sell email lists. Your email gets you the report and a weekly newsletter from Dylan on AI search trends. Unsubscribe anytime.
How long does it take?: About 90 seconds. We test 5 buying queries across 4 AI models in parallel. You will see results stream in live while we compute your scoreboard.

Audit your brand. Free. 90 seconds.

Find out what ChatGPT, Claude, Gemini, and Perplexity say about you, right now.

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