Research
AI Citation Research
Every week PressGEO Research publishes the citation-rate breakdown across ChatGPT, Gemini, Perplexity, Claude, Copilot, and Grok — real data from the live monitor, with methodology, week-over-week deltas, and named gaps. Free, dated, and fully sourced.
AI Citation Report — week of July 20, 2026
0 non-brand AI citations and 93 brand-prompt citations across 1174 probes this week (7.9% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of July 17, 2026
0 non-brand AI citations and 89 brand-prompt citations across 1230 probes this week (7.2% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportWire Service Scorecard — week of July 13, 2026: avg GEO score 94/100
We scored the top 5 PRNewswire releases this week against the 10 rules AI engines use. Average score: 94/100.
Read the reportAI Citation Report — week of July 13, 2026
0 non-brand AI citations and 87 brand-prompt citations across 1174 probes this week (7.4% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of July 10, 2026
0 non-brand AI citations and 70 brand-prompt citations across 999 probes this week (7% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportWire Service Scorecard — week of July 6, 2026: avg GEO score 93/100
We scored the top 5 PRNewswire releases this week against the 10 rules AI engines use. Average score: 93/100.
Read the reportAI Citation Report — week of July 6, 2026
3 non-brand AI citations and 67 brand-prompt citations across 927 probes this week (7.6% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of July 3, 2026
6 non-brand AI citations and 75 brand-prompt citations across 985 probes this week (8.2% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportWire Service Scorecard — week of June 29, 2026: avg GEO score 95/100
We scored the top 5 PRNewswire releases this week against the 10 rules AI engines use. Average score: 95/100.
Read the reportAI Citation Report — week of June 29, 2026
3 non-brand AI citations and 83 brand-prompt citations across 975 probes this week (8.8% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of June 26, 2026
0 non-brand AI citations and 77 brand-prompt citations across 930 probes this week (8.3% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportWire Service Scorecard — week of June 22, 2026: avg GEO score 93/100
We scored the top 5 PRNewswire releases this week against the 10 rules AI engines use. Average score: 93/100.
Read the reportAI Citation Report — week of June 22, 2026
3 non-brand AI citations and 48 brand-prompt citations across 1098 probes this week (4.6% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of June 19, 2026
7 non-brand AI citations and 57 brand-prompt citations across 1210 probes this week (5.3% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of June 15, 2026
4 non-brand AI citations and 54 brand-prompt citations across 1543 probes this week (3.8% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportWire Service Scorecard — week of June 15, 2026: avg GEO score 94/100
We scored the top 5 PRNewswire releases this week against the 10 rules AI engines use. Average score: 94/100.
Read the reportAI Citation Report — week of June 12, 2026
0 non-brand AI citations and 30 brand-prompt citations across 1471 probes this week (2% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of June 8, 2026
0 non-brand AI citations and 23 brand-prompt citations across 802 probes this week (2.9% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI Citation Report — week of June 5, 2026
0 non-brand AI citations and 15 brand-prompt citations across 463 probes this week (3.2% overall rate) across ChatGPT, Gemini, Perplexity, Copilot, Claude, and Grok.
Read the reportAI citations this week: what ChatGPT, Gemini, and Perplexity quoted
A weekly snapshot of which press releases got cited by which AI engines — and what the citing prompts had in common.
Read the reportMethodology
Reports are generated from citation_checks, the live log of every AI-engine probe PressGEO runs. Each probe records the engine, query, whether the engine cited a PressGEO release in its answer, the position of the citation, and the surrounding excerpt. The full per-page methodology lives at /methodology.
Open data
Vendor Citation Share (90d)
How often 150 SaaS vendors across 10 categories are cited by ChatGPT, Perplexity, Gemini, and Claude on real buyer queries. Refreshed hourly. CC BY 4.0 — cite as “PressGEO Vendor Citation Share.”