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The neutral index of AI-visibility & GEO tools

Summary

CheckThat.ai is an AI visibility platform from GrowthX that publishes a public index of how AI answer engines rank and cite B2B software brands across 199 categories. Tracking your own brand runs through GrowthX's contracted platform, GrowthOS.

Best for
A marketing or SEO lead who wants a genuinely free way to see how their category performs in ChatGPT, Claude, Gemini and Perplexity before committing to a paid AEO/GEO monitor.
Not for
Buyers who want published pricing, a wider named engine list (Copilot, Grok, DeepSeek, Meta AI), or an independently-reviewed product today.
From
Freethen $6,000/month
Free tier
YesThe public index is readable with no account: 199 categories, 5,985+ brands and dated AI answers, advertised as "Free access to 1.6M+ AI answers per month". The Terms let GrowthX end a Free Access Subscription at any time with 15 days' notice if it institutes a fee.
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What it does

Monitors AI answers
YesThe whole product is engine monitoring: it queries answer engines on a maintained prompt panel and records whether a brand is named, publishing the result as a public index.CheckThat tracks how ChatGPT, Claude, Gemini, and Perplexity mention your brand. Monitor visibility trends and sentiment across every major AI…checkthat.ai/features/overview
Optimises your content
PartlyCheckThat itself only reports market-level visibility; page-by-page scoring of pages you already have is a GrowthOS capability, reached through a booked GrowthX engagement rather than the free index.GrowthOS scores a page on 6 axes (lifecycle, momentum, traffic, query health, readiness and competition) and resists blending them into one number.growthx.ai/docs/product/concepts/how-pa…
Generates content
PartlyDrafting is not part of the CheckThat index at all; inside GrowthOS agents write drafts and every draft stops at a proposal a human must accept, so generation comes with the paid engagement.An automated worker inside GrowthOS. Agents research your market, propose opportunities, write drafts, and score the pages you already have.growthx.ai/docs/product/glossary
Publishes to your site
PartlyGrowthOS can stage a finished article into four named CMSes as a draft, but the publish click stays with the customer and no CMS connection exists on the CheckThat side.If your workspace has a CMS connection, GrowthOS stages the article in Sanity, Strapi, Webflow or WordPress as a draft; you publish it there.growthx.ai/docs/product/concepts/agents…
Technical AEO
PartlyTechnical work is a GrowthOS feature, not a CheckThat one: its crawler runs a health audit whose schema category checks Article, FAQ, Breadcrumb and JSON-LD validity, while no llms.txt or crawler-directive tooling is documented.The crawl feeds a page's Health score: a technical audit of 77 checks grouped into 13 categories.growthx.ai/docs/product/admin/site-sync
Done-for-you service
YesEvery buying CTA on checkthat.ai books time with GrowthX, whose paid product bundles an optional managed-service layer with a dedicated strategist and strategist-approved content production.The GrowthX platform (starting at $6,000 per month): our Growth Operating System combines platform access with an optional managed-service layer that…growthx.ai/learn/aeo-services

Answer engines

ChatGPT
YesChatGPT heads both engine inventories the vendor publishes, and the public index carries dated ChatGPT answers for every brand page, with no tier gate stated.CheckThat tracks how ChatGPT, Claude, Gemini, and Perplexity mention your brand. Monitor visibility trends and sentiment across every major AI…checkthat.ai/features/overview
Perplexity
YesPerplexity appears in every coverage statement the vendor makes: the Overview page list, the homepage monitoring line and the GrowthOS AI Visibility segment screen.Tracking is limited to ChatGPT, Claude, Gemini, and Perplexity.checkthat.ai/features/overview
Gemini
PartlyGemini is one of the four engines the CheckThat workspace tracks, but the GrowthOS segment screen that paying customers read names Google AI Overviews and AI Mode instead, so Google coverage differs by surface.Tracking is limited to ChatGPT, Claude, Gemini, and Perplexity.checkthat.ai/features/overview
Google AI Overviews
PartlyAI Overviews coverage is documented only for the paid platform's AI Visibility segments; the CheckThat feature page's own four-engine list leaves it out, so the free index is not stated to cover it.Engines covered on this screen: Google AI Overviews, ChatGPT, Perplexity and Claude. The AI Engine Visibility report covers a slightly wider set,…growthx.ai/docs/product/context-and-voi…
Google AI Mode
PartlyGoogle AI Mode is named in the shared daily dataset and added by the GrowthOS AI Engine Visibility report, yet the workspace feature page says tracking is limited to four engines that exclude it.Engines covered on this screen: Google AI Overviews, ChatGPT, Perplexity and Claude. The AI Engine Visibility report covers a slightly wider set,…growthx.ai/docs/product/context-and-voi…
Claude
YesClaude is named in the closed four-engine list on the Overview page and again in the GrowthOS segment screen, so it is covered on the free index and in the paid platform alike.Tracking is limited to ChatGPT, Claude, Gemini, and Perplexity.checkthat.ai/features/overview
Microsoft Copilot
NoMicrosoft Copilot appears in neither inventory: the CheckThat page closes its list at four engines and the GrowthOS screen closes its at five, so no tier is stated to query Copilot.Tracking is limited to ChatGPT, Claude, Gemini, and Perplexity.checkthat.ai/features/overview
Grok
NoGrok is absent from the four engines CheckThat says it tracks and from the five the paid platform names, and xAI appears in the index only as a tracked brand, never as a queried engine.Tracking is limited to ChatGPT, Claude, Gemini, and Perplexity.checkthat.ai/features/overview
DeepSeek
NoDeepSeek is not among the engines either inventory names; it appears in CheckThat only as a monitored vendor inside the Foundation Models category, which is the opposite role.Engines covered on this screen: Google AI Overviews, ChatGPT, Perplexity and Claude. The AI Engine Visibility report covers a slightly wider set,…growthx.ai/docs/product/context-and-voi…
Meta AI
NoMeta AI is named in no coverage statement on either domain; the paid platform's engine note closes its list at five surfaces and the free index closes at four.Engines covered on this screen: Google AI Overviews, ChatGPT, Perplexity and Claude. The AI Engine Visibility report covers a slightly wider set,…growthx.ai/docs/product/context-and-voi…
Coverage in the vendor’s words
YesThe vendor states coverage twice and the statements disagree: CheckThat says tracking is limited to four engines, while the paid platform's docs name AI Overviews, ChatGPT, Perplexity and Claude plus AI Mode in one report. No per-plan engine limits are published.Tracking is limited to ChatGPT, Claude, Gemini, and Perplexity.checkthat.ai/features/overview

What it reports

Names the cited sources
YesA dedicated Sources view reports which domains and pages the engines drew on when they mentioned a brand, and the paid segments screen adds cited domains and URLs for rivals too.CheckThat reveals where AI models get their information about your brand. Track which sources are being cited when AI platforms mention youcheckthat.ai/features/sources
Competitor tracking
YesRival brands sit in the same view by design: public category pages rank vendors by visibility share, and the paid segments screen reports vendor rankings per engine.CheckThat tracks how AI answers position your brand and who they recommend instead.checkthat.ai
Brand sentiment
PartlySentiment is claimed once on the Overview page and rendered as a positive or negative marker on brand cards, but no attribute-level perception analysis is described and the paid platform's docs never mention sentiment at all.Monitor visibility trends and sentiment across every major AI platform in real time.checkthat.ai/features/overview
Recommendations
PartlyCheckThat promises to say what needs to change, but the vendor's own docs flag that a visibility finding does not become a work item: segments are read-only and the loop to a brief is still open.Acting on a segment finding is a manual step today. Segments are read-only, and nothing turns a finding into an opportunity or a briefgrowthx.ai/docs/product/context-and-voi…
AI crawler analytics
NoNo view of AI bot hits on your own site is documented anywhere; the only crawler named is the vendor's own, which inventories your pages for scoring rather than reporting which AI agents fetched them.Site Sync is how GrowthOS learns what pages exist on your site and keeps that picture current.growthx.ai/docs/product/admin/site-sync
Wrong answers about you
NoThe fields the product records per segment are citation status, who was cited instead and which sources were used; nothing checks or flags whether an answer states something false about the brand.For each segment it asks a panel of buyer questions across the engines and records whether you were cited, who was cited instead, and which sources…growthx.ai/docs/product/context-and-voi…

Plans and signing up

Prompt or credit allowance
YesA premium workspace tracks up to 50 custom prompts and reads a shared library the same section sizes at 100,000+ prompts.Track up to 50 custom prompts per workspacecheckthat.ai/brands/checkthat-ai
Projects or brands
PartlyOne brand per workspace is the unit in the paid platform, and an account can occasionally reach several, but no page says how many brands an engagement includes or what an extra one costs.A workspace holds everything GrowthOS knows and does for one brand, and every figure on this screen covers that brand only.growthx.ai/docs/product/workspace/at-a-…
How often it checks
YesThe shared dataset is refreshed daily across the engines it names, and on the paid side analysis zones run on a Daily, Weekly or Monthly frequency measured as elapsed time rather than a calendar.Daily responses across ChatGPT, Perplexity, Claude, Google AI Mode. Open shared dataset with historical trends. No cold start.checkthat.ai
Card required to start
NoNothing asks for a card up front: the public index and its AI answers are readable with no account, and the paid platform is sold on an order form and billed by invoice rather than a card checkout.If you have executed an order form with GrowthX with respect to the GrowthX Platform (each an "Order Form") which states that you will be billed via…checkthat.ai/terms
Self-serve signup
PartlyReading the index and registering an account need no sales contact, but the product that tracks your own brand cannot be bought that way: the vendor states plainly that engagements are sales-led with no self-serve tier.Engagements are sales-led and contract-based. There is no self-serve tier.growthx.ai/learn/aeo-services

Not established: Countries

Access and integrations

API
PartlyAPI tokens exist inside the paid platform's admin and govern programmatic access, but GrowthX issues and manages them, customers see the screen read-only, no public API reference is published, and the terms forbid automated extraction.It governs programmatic API access and has no bearing on MCP: revoking a token won't disconnect an agent, and removing an agent won't invalidate a…growthx.ai/docs/product/admin/mcp-server
MCP server
PartlyAn MCP server exists for the contracted platform, is read-only unless write access is granted per person, and is set up per client, so agents can query workspace data but only after an engagement starts.The MCP server gives an AI agent direct access to your workspace (pages, briefs, context and analytics) from wherever you already work, read-only by…growthx.ai/docs/product/admin/mcp-server
BI export
NoThe vendor states premium is tied to workspace creation and prompt tracking; no export, warehouse or BI destination appears in any plan or feature list.Pricing details for premium tiers are not publicly listed. Premium features are tied to workspace creation and custom prompt tracking.checkthat.ai/brands/checkthat-ai

31 sourced claims on this page. Checked 2026-09-11. How we check.

Alternatives

Where we would send a reader instead, in that listing's own words.

  • AI Sightline

    AI visibility monitoring and AI traffic analytics across six answer engines, with ranked fix recommendations.

  • AthenaHQ

    AEO/GEO platform tracking brand visibility across 11 AI models, with content and technical actions.

  • Knowatoa

    Tracks brand visibility across seven AI answer engines and drafts articles that publish to your CMS.

  • Goodie

    End-to-end AEO platform: monitor AI answers, execute optimization actions, attribute AI search to revenue.

Filed under

AI OverviewsBrand monitoringChatGPTClaudeFree trialGeminiPerplexity

Sources and updates

Answer-engine source observations0 of 4

0 of 4 collected answers have source URL/title annotations naming CitedIndex. These are the latest stored observations per engine, not current consumer-UI results. They do not measure product mentions or establish that a source supports a claim.

  • ChatGPTCitedIndex domain not found in observed source annotationsModel: gpt-4o-mini · Collected on · 10 source annotationsQuery: CheckThat.ai alternativesOther source hosts (up to 6): ai-saas.org, elmohq.com, energypr.co.uk, checkthat.ai, amicited.com, brightedge.com
  • ClaudeCitedIndex domain not found in observed source annotationsModel: claude-haiku-4-5 · Collected on · 2 source annotationsQuery: CheckThat.ai alternativesOther source hosts (up to 6): checkthat.ai
  • GeminiCitedIndex domain not found in observed source annotationsModel: gemini-2.5-flash · Collected on · 14 source annotationsQuery: CheckThat.ai alternativesOther source hosts (up to 6): checkthat.ai, ailedgrowth.com, semrush.com, zapier.com, demandsage.com
  • PerplexityCitedIndex domain not found in observed source annotationsModel: sonar · Collected on · 20 source annotationsQuery: CheckThat.ai alternativesOther source hosts (up to 6): checkthat.ai, g2.com, elmohq.com, ailedgrowth.com

Updates4

  • Capabilities · Free tier · Price
  • Capabilities · Free tier
  • Capabilities · Free tier
  • Alternatives · LinkedIn link · One-liner · Summary

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