Free AI Visibility Checkers
Free tools to check how your brand appears in ChatGPT, Perplexity, and Google AI Overviews.
The ranking, explained
Why each sits where it does — one honest line, the facts behind it, and the rubric score. Order is set by rubric score only; sponsorships never change it.
- 1
Writesonic AI Visibility (GEO)Editor's pickThe widest engine coverage of the free options (its paid platform spans six+ engines), with free grader and traffic-analytics tools.
from From $79/mo (billed annually)engines 6best for Content marketers exploring AI answer share3.7/5View → - 2
The most data-backed free audit: built on Kalicube's 75,000-entity Brand SERP dataset, no login (the vendor claims nine AI platforms; its audit page names Google and ChatGPT).
from Freeengines 2best for Brands building entity authority for LLMs3.6/5View → - 3
The easiest first check: free, no account, five scored dimensions across ChatGPT, Perplexity, and Gemini — one-time, not monitoring.
from Freeengines 3best for Marketers wanting a free AI visibility baseline3.5/5View →
Show all 5 rankedShow fewer
- 4
The content-side check: a free 0-100 citation-readiness score for any URL - complements the brand-side checkers by telling you whether the PAGE is structured for AI answers.
from Freeengines 1best for Content teams checking page-level AI readiness3.4/5View → - 5
The technical angle: tests whether AI crawlers can actually reach your site and scores it out of 100.
from Freeengines 2best for Content teams auditing individual pages3.0/5View →
At a glance
sorted by scoreThe full field on one screen — coverage, price, and score.
| Name | Type | Best For | ChatGPT | Perplexity | Gemini | Claude | Google AI Overviews | Pricing | Rating | |
|---|---|---|---|---|---|---|---|---|---|---|
| Writesonic AI Visibility (GEO) | Tool | Content marketers exploring AI answer share | Covered | Covered | Covered | Covered | Covered | From $79/mo (billed annually) | 3.7 | View |
| Kalicube AI Authority Index | Tool | Brands building entity authority for LLMs | Covered | Not covered | Not covered | Not covered | Covered | Free | 3.6 | View |
| HubSpot AEO Grader | Tool | Marketers wanting a free AI visibility baseline | Covered | Covered | Covered | Not covered | Not covered | Free | 3.5 | View |
| Frase GEO Score | Tool | Content teams checking page-level AI readiness | Covered | Not covered | Not covered | Not covered | Not covered | Free | 3.4 | View |
| Rankability AI Search Indexability Checker | Tool | Content teams auditing individual pages | Covered | Covered | Not covered | Not covered | Not covered | Free | 3.0 | View |
Is this right for you?
Founders, marketers, and SEO teams starting AI visibility work.
A strong fit if you're a…
Look elsewhere if you…
- want it done for you → AI visibility agencies
- only need a one-time baseline → Free checkers
How to choose
The checks that separate the right pick from an expensive dashboard.
- Free checkers are one-time diagnostics, not monitoring — treat results as a baseline snapshot
- Run 2-3 different checkers: methodologies differ enough that one report misleads
- Check what's behind the score before acting (engines checked, dimensions scored)
- Expect lead-magnet follow-up — these tools exist to sell the paid product
Free (all of them); paid upgrades from $29-295/mo.
Start here before spending anything: a free baseline tells you whether paid monitoring is even warranted yet.
AI visibility terminology8 definitions used across CompareNow.aiAI VisibilityGenerative Engine OptimizationAnswer Engine OptimizationLLM SEOAI Search Monitoring+3ShowHide
- AI Visibility
- How often your brand appears in AI-generated answers across ChatGPT, Perplexity, Gemini, Claude, Copilot, and Google AI Overviews.
- Generative Engine Optimization (GEO)
- Optimizing content and entities to be cited by generative AI engines.
- Answer Engine Optimization (AEO)
- Optimizing content so it is selected as the direct answer by answer engines and LLMs.
- LLM SEO
- SEO tactics aimed at large-language-model retrieval and citation, overlapping with GEO and AEO.
- AI Search Monitoring
- Tracking brand mentions, share of voice, and citations across AI search interfaces.
- ChatGPT Visibility
- Your brand's frequency and quality of appearance in ChatGPT answers and browsing results.
- Perplexity Visibility
- Citations and inclusions inside Perplexity answer sources and follow-ups.
- Google AI Overviews Visibility
- Appearance inside Google's AI Overviews SERP feature.
Sources3 referencesHubSpot AEO GraderKalicube free AI audit pageRankability free toolsViewHide
Frequently Asked Questions
>What are Free AI Visibility Checkers?
Free AI visibility checkers let any brand run a quick baseline of how ChatGPT, Perplexity, Gemini, and Google AI Overviews describe them, whether they get mentioned, and where competitors show up first - all without a paid contract. They're the fastest way to prove AI visibility matters before investing in a full platform or agency.
>Who should use Free AI Visibility Checkers?
Founders, marketers, and SEO teams starting AI visibility work.
>How does CompareNow.ai rank these?
With a published five-criterion rubric scored from recorded, source-linked research — engine coverage, capability, pricing transparency, independent evidence, and best-for fit. See our methodology.
Still deciding?
Work through whether you need a tool, an agency, or a consultant — then use our rubric to pick the specific one.