Open data · CC-BY-4.0
AI Citation Datasets
Free, dated, methodologically-transparent datasets on how often AI search engines cite real sources. Built from the live PressGEO citation monitor. Use the numbers — please cite back.
Citation rates by engine — rolling 30 days
Updated 2026-10-1472 citations across 1,000 probes · 8 engines · 0 non-brand citations on 575 non-brand probes (0.0%)
| Engine | Probes | Cited | Overall | Brand | Non-brand |
|---|---|---|---|---|---|
| Gemini | 127 | 3 | 2.4% | 3/54 · 5.6% | 0/73 · 0.0% |
| Copilot | 126 | 22 | 17.5% | 22/54 · 40.7% | 0/72 · 0.0% |
| Perplexity | 126 | 0 | 0.0% | 0/53 · 0.0% | 0/73 · 0.0% |
| Claude | 125 | 14 | 11.2% | 14/53 · 26.4% | 0/72 · 0.0% |
| ChatGPT | 125 | 17 | 13.6% | 17/53 · 32.1% | 0/72 · 0.0% |
| 124 | 0 | 0.0% | 0/53 · 0.0% | 0/71 · 0.0% | |
| Grok | 124 | 9 | 7.3% | 9/53 · 17.0% | 0/71 · 0.0% |
| kagi | 123 | 7 | 5.7% | 7/52 · 13.5% | 0/71 · 0.0% |
Brand = probes whose prompt named the brand. Non-brand = category and discovery prompts that did not name the brand. The non-brand number is the meaningful GEO accountability metric — the rate at which an engine cites a source on a buyer-intent prompt where the buyer described the problem instead of the company.
Methodology
PressGEO Research logs every probe in the public citation monitor. Each row records (engine, query, whether a PressGEO-published URL appeared in the engine's answer, citation position, surrounding excerpt). Coverage spans ChatGPT, Gemini, Perplexity, Microsoft Copilot, Claude, Grok, and Reddit. This dataset aggregates the rolling 30-day window ending 2026-10-14 (UTC). cite_rate = cited / total_checks. Every probe is classified by tier: brand_aware (prompt names the brand), category_intent (prompt names the category but not the brand), or discovery (generic problem-statement prompt). Non-brand cite_rate = (category_cited + discovery_cited) / (category_checks + discovery_checks) and is the meaningful GEO accountability metric.
How to cite
Licensed under Creative Commons Attribution 4.0. You can use the numbers commercially with attribution back to PressGEO Research.
Stable URLs
- https://pressgeo.com/api/public/research/citation-rates-latest.csv
- https://pressgeo.com/api/public/research/citation-rates-latest.json
Both endpoints refresh hourly. Linking directly is fine.
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