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The neutral index of AI-visibility & GEO tools

The Citation Index · Reports

Reports & Data

Understand the AI-visibility market with original research, product statistics and source-linked analysis.

19 reportsBased on our product researchBuilt to be cited

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Latest reportData report

Generates content: a census of 115 listings

60 of 115 listings answer yes for “Generates content”. Counted from our own datasheet, with the query that reproduces every figure.

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Data report

MCP server: a census of 103 listings

40 of 103 listings answer yes for “MCP server”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 9, 2026 · 2 min

Data report

Claude models: a census of 115 listings

57 of 115 listings answer yes for “Claude models”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 8, 2026 · 2 min

Data report

Google AI Mode: a census of 115 listings

49 of 115 listings answer yes for “Google AI Mode”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 7, 2026 · 2 min

Data report

AI crawler analytics: a census of 109 listings

27 of 109 listings answer yes for “AI crawler analytics”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 6, 2026 · 2 min

Data report

Done-for-you service: a census of 114 listings

35 of 114 listings answer yes for “Done-for-you service”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 5, 2026 · 2 min

Data report

Microsoft Copilot: a census of 115 listings

28 of 115 listings answer yes for “Microsoft Copilot”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 5, 2026 · 2 min

Data report

Accuracy disclosure: a census of 115 listings

22 of 115 listings answer yes for “Accuracy disclosure”. Counted from our own datasheet, with the query that reproduces every figure.

Sep 5, 2026 · 2 min

Statistics

Which AI-Visibility Tools Have an API, and What Plan Carries It?

API access versus plan entitlement: a corrected August 2026 report, with unreproduced totals withdrawn and sourced REST, MCP and self-hosting distinctions.

Aug 19, 2026 · 7 min

Statistics

AI-Visibility Billing Census: Corrected Historical Findings

Corrections to the August 2026 billing census: signup credits do not establish ongoing free access. Historical totals withdrawn, not remeasured.

Aug 13, 2026 · 5 min

Statistics

Who Published a Price? The 13 August 2026 CitedIndex Study

Historical pricing records: 59 of 68 readable software records include a currency price; 6 of 11 readable service records use quote pricing. Dated 13 August 2026.

Aug 13, 2026 · 8 min

Statistics

Which AI-Visibility Tools Show Their Work? A Methodology Census

A dated 74-tool transparency review: six had inspectable supporting material, not independently validated accuracy. Corrected evidence scope and sampling units.

Aug 7, 2026 · 22 min

Data report

Free-Access Census: Corrections to the August 2026 Findings

The August 2026 free-access census is corrected, not remeasured: recurring allowances, signup grants and plan-specific trials must be distinguished.

Aug 5, 2026 · 10 min

Statistics

Which AI Engines Do AI-Visibility Tools Track? The 2026 Census

Recovered August 2026 engine-tag counts across 85 directory listings, with explicit limits on what tags establish about live monitoring and plan access.

Jul 28, 2026 · 17 min

Statistics

Which AI-Visibility Tools Can Your Own AI Agent Actually Query?

A corrected MCP access report: historical totals withdrawn, vendor research preserved, and API, server, tier and read-only distinctions explained.

Jul 24, 2026 · 14 min

Statistics

AI Search Statistics 2026: The Data Behind the Shift

Dated AI-search studies and enterprise survey findings, with corrected source attribution, study windows, denominators and limits on causal claims.

Jul 21, 2026 · 8 min

Market analysis

Who's Backing Your GEO Stack? The 2025-2026 Money Wave

Ten dated GEO financing and acquisition events through July 2026, separating disclosed terms and company plans from unsupported pricing and survival predictions.

Jul 21, 2026 · 12 min

Report

How AI answer engines cite sources: what the studies show

What Profound, Otterly and Ahrefs citation studies actually measure, where their samples and denominators differ, and what they do not prove about AI source selection.

Jul 16, 2026 · 8 min

Market analysis

The 20 August 2026 GEO Tool Landscape: Historical Tags, Pricing and Limits

A preserved 79-tool directory edition with recovered historical engine tags, corrected trial range, and explicit pricing, API and evidence limits.

Jul 12, 2026 · 16 min

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