AI visibility tools: what they do, what they cost, when you need one

An AI visibility tool answers one question: when someone asks ChatGPT, Perplexity, Gemini or Google's AI for a recommendation in your category, does your brand get named? Under the hood every tool does some mix of three jobs: prompt sampling (asking engines real buyer questions and logging who's mentioned), technical auditing (can AI crawlers even read your site), and reporting (turning both into something you act on).

The catch most buyers discover late: almost every tool does job one, few do job two, and almost none do job three — you get a dashboard of mentions and the "so what do I do" part is left to you.

We read these off vendor pricing pages in July 2026 (full hands-on notes in our reviews):

The pattern buyers complain about most (we collected the complaints): entry tiers are single-engine teasers, and real multi-engine coverage costs 3–5× the advertised price.

Honestly: if you just want to know where you stand today, free covers it. Our 5-signal checker scores the technical layer in 20 seconds. The Answer Consistency Test asks a live engine your key prompt 5 times and shows how often you're named. The Watchdog emails you if your robots.txt or llms.txt silently changes. None of them ask for a signup.

You need a paid tracker when the question changes from "where do I stand" to "am I slipping" — that's a monthly measurement problem, not a one-shot one.

Our Monitor sells the deliverable, not the dashboard: monthly 5-signal re-audit + 8 category prompts sampled across three engines — Perplexity live-web asked 3 times per prompt, GPT-4o and Gemini (model-memory, labeled) — reported with a Wilson 95% confidence interval and a prioritized fix list, by email. $20/mo Lite, $199/yr full.

It is not for you if you want daily refreshes, hundreds of tracked prompts, team seats or per-keyword Google AI Overview placements — several tools in our reviews do that well at their price. We'd rather tell you that here than in a refund thread.