9 Best Free AI Visibility Checkers in 2026

Every checker below was used or read on its vendor's own page on 4 October 2026, and the limits quoted are the ones stated there that day. Free tools change their limits often, so treat this as 'as of October 2026'.

Three kinds of free check

• Brand snapshots: you type a domain or brand and get an estimate of mentions, a score or a list of prompts, built from the vendor's own prompt database. Fast, and good for a first look.
• Model-knowledge checks: whether an AI model knows your brand at all, from its training data rather than live search.
• First-party reports: Google and Microsoft counting how often your own pages appeared in their AI features. Exact for your site, silent about competitors.

At a glance (as of October 2026)

The checkers, one by one

Semrush AI Search Visibility Checker

Enter a domain and Semrush returns an AI Visibility Score from 0 to 100, total mentions with a breakdown across ChatGPT, Gemini and Google's AI features, the pages that drive the most AI citations, the topics and prompts where the brand appears and an estimated audience. It runs three times a day free without an account. Best for: a quick read on which of your pages AI answers cite. Limit: the prompts come from Semrush's database, not your buyers' questions.

Ahrefs AI Visibility Checker

Covers ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews, with no signup, no card and, in Ahrefs' words, no limit on how many brands you check. It shows total AI mentions, a per-platform breakdown, topics and the cited domains and pages, limited to the top five results per section as a one-time snapshot. Ahrefs also has free AI Overview and AI Mode trackers. Best for: comparing your brand with several competitors in one sitting. Limit: a preview, not the full dataset.

SE Ranking free checks

The checker on SE Ranking's AI visibility page takes your domain plus up to five competitors and covers AI Overviews, AI Mode, ChatGPT, Gemini and Perplexity, with five free checks a day before it asks you to start the 14-day trial. Best for: a side-by-side with named competitors. Limit: five checks a day.

HubSpot AI Search Grader

A free, one-time check with no account, though you fill in a short form to see the full results. HubSpot names the models as GPT-5.4 mini, Perplexity and Gemini, and says the grader works from what models say based on their training data. You get a score out of 100: sentiment (40 points), presence quality (20), brand recognition (20), share of voice (10) and market competition (10), usually in under two minutes, with competitor checks. HubSpot also sells ongoing monitoring at $50 a month. Best for: a sentiment read. Limit: training-data answers can lag your current site by months.

Otterly AI Authority Checker

A free, no-signup tool that asks whether AI knows your brand and returns a 0-100 confidence score, using Claude, GPT and the Google Knowledge Graph; Otterly notes the results reflect training data, not the live web. Otterly's free tool hub also includes a crawlability check, a query fan-out simulator and a prompt calculator. Best for: new brands checking whether models recognise them at all. Limit: it does not show what an assistant says when a buyer asks for a recommendation.

Google Search Console generative AI report

Search Console is a free Google service, and since 31 August 2026 its generative AI report is available to every verified site. It counts impressions of your URLs in AI Overviews and AI Mode by page, country, date and device. Google lists no clicks or query breakdown for it. Best for: your real Google AI numbers. Limit: Google only, and nothing about competitors.

Bing Webmaster Tools AI Performance

Microsoft launched it as a public preview in February 2026. It counts citations of your pages in Microsoft Copilot, Bing's AI summaries and some partner experiences, with total citations, cited pages, a sample of grounding queries and trends; June 2026 added intents, topics, citation share and period comparison, also in preview. Microsoft says the counts do not show placement within an answer. Best for: the only first-party citation count from a major assistant. Limit: Microsoft surfaces only.

Profound's free trial and a manual check

Profound's brand trial is free for seven days: 50 recommended prompts run daily on ChatGPT, Gemini and Google AI Overviews, without history, exports or API. And the oldest free checker still works: ask ChatGPT, Claude, Gemini, Perplexity and Grok the ten questions your buyers ask, three times each, and write down who is named and which sources are linked. It takes an hour and shows exactly what the answers said.

What a free visibility score hides

A score out of 100 is a summary of choices you cannot see: which prompts, which assistants, how many runs, and how mentions and citations were weighted. Two checkers will give the same brand different scores on the same day, and neither is wrong. Before acting on one, ask: whose prompts were used, were they buyer questions or keyword variants, how many times was each asked, and is a link counted the same as a name in the text? A score can tell you whether to look closer. It cannot tell you whether you improved, because a single snapshot has no baseline.

When free stops being enough

Move to a paid tracker when you need a trend: the same prompts, asked on a schedule, with history. Our AI rank tracker comparison covers the options and prices. Fenn has no free plan or free checker; it starts at $29 a month and is set up after a demo. It asks ChatGPT, Claude, Gemini, Perplexity and Grok your own question set when you start a check, and turns the gaps into site fixes and page drafts that you approve. If all you need is a one-off snapshot, the free tools above are the right place to start.

FAQ

How can I check if ChatGPT mentions my brand for free?

Semrush's checker (3 checks a day, no account), Ahrefs' checker (no signup) and SE Ranking's checker (5 a day) all include ChatGPT, as of October 2026. For what ChatGPT says to a buyer, ask it the buyer's question yourself, several times, and record the answers.

Is HubSpot's AI Search Grader accurate?

It measures something specific: what three models say about your brand from their training data, scored out of 100 with sentiment weighted most. That is useful for perception and less useful for live search answers, which draw on current web results.

Which free tool shows real AI Overview data?

Google Search Console's generative AI report, which counts impressions of your own URLs in AI Overviews and AI Mode. The third-party checkers estimate from their own prompt samples.

Why do free AI visibility scores disagree?

Each tool uses its own prompts, assistants, run counts and scoring weights, and AI answers vary between runs. Compare scores from the same tool over time, never across tools.