Free AI Visibility Checkers: 8 Tested for ChatGPT, Gemini and Claude (2026)

Key takeaways

• We read each tool's page, FAQ and limits on 29 September 2026 and compared what each checks; we did not submit any brand or create a paid account.
• AIclicks, Geoptie and LLMClicks are the only 3 of the 8 that check ChatGPT, Gemini and Claude with no account needed.
• Mangools checks all three too, but Gemini and Claude are locked behind a free account signup.
• The other 4 checkers here, Ahrefs, Otterly.AI, SE Ranking and Semrush, each skip at least one of ChatGPT, Gemini or Claude.
• Cituna is not one of the 8: it is a paid product, so it appears afterward for when a one-off free check is not enough.

If you want the same kind of check run daily instead of once, with the fix written for you, start a 3-day Cituna trial at cituna.com; a card is required.

This page compares 8 free tools that check whether your brand shows up in AI answers, with a focus on ChatGPT, Gemini and Claude specifically, since those three are the engines most small business owners ask about first and the ones where free checkers differ most in what they actually cover. Every claim below comes from reading each vendor's own checker page, FAQ and stated limits on 29 September 2026, not from running a real brand through any of them. If you later want the same kind of check repeated on a schedule, see our comparison of best Perplexity rank trackers for paid options that track history over time.

None of the 8 checkers below costs anything to run at least once, and none says on its own page that it needs payment details to show a result. Some ask for an email address before showing the full report, and one asks you to create a free account to see two of its six named models; we note both of those cases plainly in each entry rather than calling either tool fully anonymous. Run the same three or four buyer questions through two or three of these checkers, since each one picks its prompts differently and a single result can mislead.

How do the 8 free checkers compare?

Prices checked 29 September 2026.

How this list works: we kept the free checkers whose own pages confirmed no cost to run a check, read on 29 September 2026, ordered first by how many of ChatGPT, Gemini and Claude each one checks and then by whether it needs no account at all; Cituna appears after the list because it is not free.

How did we test these 8 free AI visibility checkers?

We did not create a paid account with any of these vendors, and we did not enter a real brand to compare live results. What we did, on 29 September 2026: opened each tool's own checker page, read its FAQ and any stated limits, and recorded what it claims to check, whether it needs an account, how many prompts it runs and what its paid upgrade costs.

Where a vendor's own page did not state something, such as how it chooses prompts, we wrote "not published" rather than guessing. Every price and limit below carries that 29 September 2026 date because free tools change their limits often: a daily check cap, an account requirement or a paid upgrade price can move without notice, and a page we read a month ago might already read differently today.

This also means we cannot tell you whether any of these 8 tools returns an accurate result for your brand specifically, only what each one claims to check and under what conditions. If two of these checkers disagree about whether your brand appears in ChatGPT, that is a reason to look closer, not a fact this comparison can settle for you.

Which of ChatGPT, Gemini and Claude does each free checker skip?

Claude is the engine most free checkers skip entirely. Ahrefs, SE Ranking and Semrush check ChatGPT and Gemini but not Claude on their free tools, and Semrush also skips Perplexity. Gemini is the second most commonly gated: Mangools shows it only after you create a free account, and Otterly.AI's entity checker does not run it at all.

Only 4 of the 8 tools here, AIclicks, Geoptie, LLMClicks and Mangools, check all three of ChatGPT, Gemini and Claude in the same free run, and of those, only the first 3 do it with no account at all.

Which 8 free AI visibility checkers are worth trying in 2026?

1. AIclicks (best for checking ChatGPT, Gemini and Claude with no account)

AIclicks' Free GEO Visibility Checker lets you pick up to 5 of your own prompts and runs them across ChatGPT, Gemini and Claude, plus Perplexity, with no signup and no credit card, and results appear in about 60 seconds.

Price: Free, unlimited checks, no signup (checked 29 September 2026); the paid AI Citation Tracker starts at $59 a month, see AIclicks' free checker. Engines: checks ChatGPT, Gemini and Claude, plus Perplexity, and the page says it also reflects Google AI Overviews data. Strength: unlimited free checks with no daily cap, and you choose your own prompts rather than a fixed list. Limit: each run is a one-off snapshot; tracking the same prompts over time needs the $59 paid plan. Pick it if: you want to test your own prompts across ChatGPT, Gemini and Claude without creating an account.

2. Geoptie (best for checking Claude for free with no setup)

Geoptie's AI Visibility Checker runs "real prompts" for your brand's space across ChatGPT, Gemini, Claude and Perplexity, with no account, no credit card and no setup step, per its own wording.

Price: Free, no account, no credit card (checked 29 September 2026); the paid Geoptie dashboard starts at $41 a month, see Geoptie's checker. Engines: checks ChatGPT, Gemini and Claude, plus Perplexity. Strength: it checks Claude directly in a free, no-account checker, which most of the tools reviewed here do not. Limit: it is a one-off snapshot, and the page does not state how many prompts run or how they are chosen. Pick it if: Claude coverage matters to you and you do not want to hand over an email address first.

3. LLMClicks (best for a permanent free checker, not a time-limited trial)

LLMClicks describes its AI Visibility Checker as permanent free access, not a trial, and runs ChatGPT, Gemini, Claude and Perplexity with no login or signup required.

Price: Free, described as permanent rather than a trial (checked 29 September 2026); the paid upgrade is a one-time $159 lifetime purchase rather than a monthly plan, see LLMClicks' checker. Engines: checks ChatGPT, Gemini and Claude, plus Perplexity. Strength: it is explicitly a permanent free tool rather than a time-limited demo, and lets you add up to 5 custom queries. Limit: the free tier caps you at 5 custom queries, and the paid tier is a lifetime purchase, unusual next to the monthly plans most other tools here sell. Pick it if: you want a free checker you can keep coming back to rather than one with a countdown.

4. Mangools (best for the widest named model list)

Mangools' AI Search Grader builds prompts from a short description of your niche and checks them across 6 named models, though only 3 are visible without creating a free account.

Price: Free, no trial period, no credit card for the basic result (checked 29 September 2026); Mangools' own pricing page did not confirm a paid entry price for the wider AI Search Watcher product in our fetch. Engines: checks ChatGPT with no account; Gemini and Claude both need a free account to show up, alongside DeepSeek, Mistral and Meta Llama. Strength: the widest range of individually named AI models among the checkers reviewed here, built from your own niche description rather than a generic prompt set. Limit: Gemini and Claude, the two engines this list focuses on besides ChatGPT, are both locked behind creating a free account. Pick it if: you do not mind a quick signup in exchange for the longest model list of any checker here.

5. Ahrefs (best for the broadest single-run engine coverage)

Ahrefs' Free AI Visibility Checker derives prompts from real Google search behaviour and returns total mentions, a platform breakdown, and the top domains and pages each engine cites, across 6 platforms, with no signup.

Price: Free, no signup, no credit card (checked 29 September 2026); the paid upgrade, Ahrefs Brand Radar, starts at $50 a month, and Claude coverage needs its $199 a month tier, see Ahrefs' checker. Engines: checks ChatGPT and Gemini for free, plus Perplexity, Microsoft Copilot and both Google AI surfaces; Claude is not checked on the free tool. Strength: the broadest engine coverage of the free tools checked here, and it shows actual cited domains and pages, not just a score. Limit: Claude is missing entirely from the free tool, and free report sections are capped to the top 5 results. Pick it if: you want the widest single free run and can live without Claude, or already use Ahrefs elsewhere.

6. Otterly.AI (best for checking whether AI models recognise your brand at all)

Otterly.AI's AI Authority Checker asks a narrower question than the others here: whether Claude, ChatGPT and Google's Knowledge Graph already recognise your brand as a known entity, scored from 0 to 100, with no signup needed.

Price: Free, no signup needed (checked 29 September 2026); Otterly's paid AI Search Monitoring plans start at $25 a month billed annually, see Otterly's checker. Its paid tracker, Otterly.AI, is also in our directory. Engines: checks ChatGPT and Claude for entity recognition; it does not run live prompts across Gemini or Perplexity. Strength: it checks an angle the other tools here skip, whether AI models recognise your brand as an entity at all, a prerequisite for being cited. Limit: it does not show mentions or citations, only a confidence score, so it answers a narrower question than a mention checker. Pick it if: you suspect AI models do not even recognise your brand yet, before you worry about what they say about it.

7. SE Ranking (best for comparing up to 5 competitors at once)

SE Ranking's free AI Search Visibility Tool checks ChatGPT, Gemini, Perplexity and both Google AI surfaces, and lets you compare your brand against up to 5 competitors in the same free run, for 5 checks a day with no account.

Price: Free, 5 checks a day, no account needed for those 5 (checked 29 September 2026); the paid Core plan with AI Search tracking starts at $103.20 a month billed annually, see SE Ranking's checker. Its paid tool, SE Visible, is also in our directory. Engines: checks ChatGPT and Gemini, plus Perplexity and both Google AI surfaces; Claude is not covered, free or paid. Strength: it covers 5 engines including Perplexity on the free daily checker and compares against up to 5 competitors at once. Limit: Claude is not covered at all, and the free tool caps out at 5 checks a day before it asks for a trial signup. Pick it if: competitor comparison in the same free run matters more to you than Claude coverage.

8. Semrush (best for an estimated audience-reach figure)

Semrush's Free AI Visibility Checker draws on a stated database of 26 million or more prompts and responses and returns an AI Visibility Score plus an estimated monthly audience-reach figure, for 3 checks a day with no registration.

Price: Free, 3 checks a day, no registration required (checked 29 September 2026); the paid AI Visibility Toolkit starts at $99 a month per domain, see Semrush's checker. Its paid tool, Semrush AI Visibility Toolkit, is also in our directory. Engines: checks ChatGPT and Gemini, plus both Google AI surfaces; Perplexity and Claude are not tested on the free checker. Strength: it is backed by a stated 26 million or more prompt and response database and gives an estimated audience-reach figure the other free checkers here do not. Limit: it tests neither Perplexity nor Claude, and it caps out at 3 checks a day. Pick it if: an estimated audience-reach number matters more to you than Claude or Perplexity coverage.

When is a free checker not enough?

A free checker answers one question, once. It cannot tell you whether a gap it found last month has closed, and none of the 8 tools above write anything for you. Cituna checks 7 AI engines daily, ChatGPT, Perplexity, Gemini, Claude, Grok, Google AI Overviews and Google AI Mode, and unlike every tool in the list above, it writes the fix for each gap it finds and publishes the articles.

Starter is $39 a month, Pro is $119 a month and Max is $399 a month, with a 3-day free trial that needs a card. Google Search Console and MCP are included, and Cituna does not track Microsoft Copilot.

For a daily check that fixes what it finds instead of only reporting it once, open a 3-day trial of Cituna at cituna.com.

Which free AI visibility checker should you try first?

If Claude coverage matters most and you do not want to sign up for anything, start with AIclicks, Geoptie or LLMClicks, since all 3 check ChatGPT, Gemini and Claude with no account. If you already use Ahrefs, SE Ranking or Semrush for other SEO work, their free checkers are a fast first look, though none of the three checks Claude. If you are not sure AI models even know your brand exists yet, Otterly.AI's entity check answers that narrower question first.

Once you know what a free run turns up, browse our AI visibility category to compare the paid tools that re-check the same prompts every day and keep a history, or get each gap fixed automatically with a 3-day Cituna trial at cituna.com.