B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
12%
12% -- citation overlap rate for ChatGPT, Perplexity, and Google AI Overviews (2026)
Only 12% of sources cited across ChatGPT, Perplexity, and Google AI Overviews overlap.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
12%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
chatterbubble.co
Primary
Tier C
https://chatterbubble.co/resources/search-engine-website-optimization-b2b-guide-2026 ↗
Source Article
Search Engine Website Optimization in 2026: The B2B Guide
Search Engine Website Optimization in 2026: The B2B Guide
A search engine website strategy that worked in 2023 is already losing ground — Gartner predicts traditional search engine volume will drop 25% by 2026 as AI chatbots and virtual agents absorb buyer queries. For B2B companies, this is not a d…
Original Research
chatterbubble.co
· Original study ↗
Methodology
Citation pattern analysis
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT, Perplexity, and Google AI Overviews: 12% citation overlap rate. Source: chatterbubble.co (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-citation-overlap-12-percent
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<blockquote cite="https://lighthousedata.io/data/ai-citation-overlap-12-percent" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>12%</strong> -- citation overlap rate for ChatGPT, Perplexity, and Google AI Overviews<br><small>Source: chatterbubble.co (2026) · <a href="https://lighthousedata.io/data/ai-citation-overlap-12-percent" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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