What's the best free AI visibility checker?

It depends on your goal. For a fast brand-mention baseline with no signup, the Ahrefs and Semrush free checkers are strong. For how AI perceives your brand (sentiment and positioning), HubSpot's AI Search Grader is the standout. For a genuinely free ongoing plan rather than a one-off check, Knowatoa and LLMrefs both offer free accounts. There's no single best; pick by what you need to learn first.

Do I need to pay to check my AI visibility?

No, not to get started. Several tools offer genuinely free checks or free tiers: Ahrefs, Semrush, and HubSpot all have free checkers, and Knowatoa and LLMrefs offer free accounts. You typically only need to pay once you want continuous monitoring, alerts, historical tracking, or coverage of many brands and competitors at once.

What's the difference between brand-mention and technical-readiness visibility?

Brand-mention visibility asks whether AI actually cites or recommends you when answering relevant questions. Technical-readiness visibility asks whether AI crawlers can even access and parse your site, is your robots.txt blocking GPTBot, do you have structured data, is your content well-formatted? You need both: great content behind a blocked crawler stays invisible, and a crawlable site with weak authority still won't get cited.

Why do different tools give different results for the same brand?

Each tool tests different prompts, a different number of prompts, and sometimes different model versions, and AI answers are probabilistic to begin with. It's normal for two checkers to score the same brand quite differently. Treat any single score as directional, and use more than one tool to get a fuller picture rather than trusting one number.

How often should I check?

Monthly is a sensible baseline for a free-tool workflow. If you're actively publishing and building authority to improve visibility, checking every couple of weeks helps you see what's working. Because free tools are mostly one-off snapshots, you'll need to re-run them manually; a dedicated monitoring tool is what replaces that manual cadence once it becomes a chore.

What should I do after checking?

If AI doesn't mention you, publish clear, authoritative content on the questions AI is answering in your space, and earn contextual mentions from credible sources. If your technical readiness is low, unblock AI crawlers in robots.txt, add JSON-LD schema, and tighten your heading structure. If competitors outrank you, study which topics trigger their mentions and cover those better.

The Best Free AI Search Visibility Checkers (2026)

A rundown of the genuinely free AI search visibility checkers worth using in 2026, what each measures, the two kinds of visibility they cover, and how to combine them into a free monitoring stack.

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Your Google ranking no longer decides whether you show up when a customer asks ChatGPT, Perplexity, or Gemini for a recommendation, the AI does. You can rank #1 and still be invisible inside an AI answer. The first step to fixing that is measurement, and the good news is you don’t have to pay for a baseline. Below are the genuinely free AI visibility checkers worth using, and how to combine them.

Two Kinds of Visibility to Measure

“AI visibility” actually means two different things, and you need both:

Brand-mention visibility — does AI cite or recommend your brand when it answers relevant questions? If someone asks for the best project management software and your tool isn’t named, you have zero mention visibility for that query.
Technical-readiness visibility — can AI crawlers even access and parse your site? If your robots.txt blocks GPTBot, or your content is buried in unstructured markup, ChatGPT can’t read it no matter how good it is.

Most free tools measure one or the other, which is why a small stack beats any single tool.

Brand-Mention Checkers

Ahrefs AI Visibility Checker — Free and no signup, covering ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews. It tests your brand against a large pool of real search-backed prompts and reports total mentions, mentions by platform, and, usefully, which of your specific pages get cited most. Its “top cited pages” data is more actionable than most free tools offer. The paid Brand Radar product adds continuous monitoring.

Semrush AI Search Visibility Checker — A free standalone checker that reports whether ChatGPT, Gemini, and Google AI Overviews mention your brand, with a visibility score and a breakdown of top topics and cited domains. Semrush offers it as a free tool to introduce its paid AI Visibility Toolkit; it’s a fast, friction-free baseline.

LLM Pulse Brand Mention Checker — A free checker that runs real prompts across ChatGPT, Perplexity, Gemini, and Google AI Mode and reports where your brand surfaces. Useful as a second opinion alongside the Ahrefs and Semrush checks.

Perception and Sentiment

HubSpot AI Search Grader — Free and the clearest option for understanding not just whether AI mentions you, but how. You provide your company details, and it runs queries across ChatGPT, Perplexity, and Gemini to score brand perception across sentiment, presence quality, brand recognition, share of voice, and market position, with a written interpretation that’s handy for reporting. Great for a quarterly brand-health read.

Free Tiers and Ongoing Audits

These go beyond a one-off check with a genuinely free plan or repeatable audit:

Knowatoa — Offers a free instant audit plus a real $0 plan (a limited number of questions against ChatGPT), a rare genuinely free ongoing tier.
LLMrefs — A free-forever account (no card required) with free visibility tools, useful if you want to return regularly without hitting a paywall.
Rankscale.ai — A free AI visibility audit for any URL, a quick way to spot-check a specific page.
Goodie AI — A free one-time AI search assessment that snapshots how you’re surfaced.
Am I on AI — A free checker preview showing a score and top citations (results are email-gated).

Build a Free Stack

No single free tool does everything. A workable first-month approach:

Run Ahrefs or Semrush to see whether AI mentions you at all.
Run HubSpot’s AI Search Grader to understand perception and sentiment.
Run Knowatoa (or check your own robots.txt and schema) for technical readiness.
Note where competitors appear and you don’t.

That’s roughly 15 minutes and leaves you knowing more about your AI visibility than most brands. From then on, re-run a fast checker monthly and the deeper ones quarterly.

Where Free Tools Stop

Free checkers are genuinely useful, but be honest about their limits: most are one-off snapshots, not continuous monitors; they don’t send alerts when your visibility shifts; they rarely retain history; and you’ll be logging into several tools instead of one dashboard. That’s fine when you’re getting started, tracking one or a few brands, or validating the strategy before spending.

You outgrow them when you’re tracking many brands or competitors, need weekly or daily monitoring, want alerting, or need to show trends over time. That’s the point at which a dedicated, continuously-updating monitor earns its cost, but there’s no reason not to start free and learn where your gaps are first.

Frequently asked questions

: It depends on your goal. For a fast brand-mention baseline with no signup, the Ahrefs and Semrush free checkers are strong. For how AI perceives your brand (sentiment and positioning), HubSpot's AI Search Grader is the standout. For a genuinely free ongoing plan rather than a one-off check, Knowatoa and LLMrefs both offer free accounts. There's no single best; pick by what you need to learn first.
: No, not to get started. Several tools offer genuinely free checks or free tiers: Ahrefs, Semrush, and HubSpot all have free checkers, and Knowatoa and LLMrefs offer free accounts. You typically only need to pay once you want continuous monitoring, alerts, historical tracking, or coverage of many brands and competitors at once.
: Brand-mention visibility asks whether AI actually cites or recommends you when answering relevant questions. Technical-readiness visibility asks whether AI crawlers can even access and parse your site, is your robots.txt blocking GPTBot, do you have structured data, is your content well-formatted? You need both: great content behind a blocked crawler stays invisible, and a crawlable site with weak authority still won't get cited.
: Each tool tests different prompts, a different number of prompts, and sometimes different model versions, and AI answers are probabilistic to begin with. It's normal for two checkers to score the same brand quite differently. Treat any single score as directional, and use more than one tool to get a fuller picture rather than trusting one number.
: Monthly is a sensible baseline for a free-tool workflow. If you're actively publishing and building authority to improve visibility, checking every couple of weeks helps you see what's working. Because free tools are mostly one-off snapshots, you'll need to re-run them manually; a dedicated monitoring tool is what replaces that manual cadence once it becomes a chore.
: If AI doesn't mention you, publish clear, authoritative content on the questions AI is answering in your space, and earn contextual mentions from credible sources. If your technical readiness is low, unblock AI crawlers in robots.txt, add JSON-LD schema, and tighten your heading structure. If competitors outrank you, study which topics trigger their mentions and cover those better.

When You Outgrow the Free Checkers

Free tools give you a one-time snapshot. Am I Cited tracks mentions, citations, sentiment, and share of voice across ChatGPT, Perplexity, and Google AI Overview continuously, so you catch changes instead of re-running checks by hand.

Start Monitoring Now Contact

AI Visibility Platform

The Best Free AI Search Visibility Checkers (2026)

Two Kinds of Visibility to Measure

Brand-Mention Checkers

Ready to Monitor Your AI Visibility?

Perception and Sentiment

Free Tiers and Ongoing Audits

Build a Free Stack

Where Free Tools Stop

Frequently asked questions

When You Outgrow the Free Checkers

The Best Free AI Search Visibility Checkers (2026)

Two Kinds of Visibility to Measure

Brand-Mention Checkers

Ready to Monitor Your AI Visibility?

Perception and Sentiment

Free Tiers and Ongoing Audits

Stay Updated on AI Visibility Trends

Build a Free Stack

Where Free Tools Stop

Frequently asked questions

When You Outgrow the Free Checkers

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