The Citation Index · Reports
Reports & Data
Understand the AI-visibility market with original research, product statistics and source-linked analysis.
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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.
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.
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.
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.
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.
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.
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.
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API access versus plan entitlement: a corrected August 2026 report, with unreproduced totals withdrawn and sourced REST, MCP and self-hosting distinctions.
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 Historical totals withdrawn, not remeasured.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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