B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
82%
82% -- share of ai cited articles human written for ChatGPT and Perplexity citations (2026)
82% of articles cited by ChatGPT and Perplexity are human-written, according to Graphite research.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
82%
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
Graphite
Primary
Tier C
https://wordpattern.org/blogs/programmatic-seo-tools-the-complete-stack-2026/ ↗
Source Article
Zapier runs over 800,000 programmatic pages. Wise built more than 260,000 currency-converter pages that pull in 46 million monthly organic visits. And neither company built that on a single tool.
Programmatic SEO is six distinct jobs. Keyword research. Dataset building. Template design. Publishing a…
Original Research
Graphite
· Original study ↗
Methodology
Graphite research
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ChatGPT and Perplexity citations: 82% share of ai cited articles human written. Source: Graphite (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-cited-articles-human-written
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<blockquote cite="https://lighthousedata.io/data/ai-cited-articles-human-written" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>82%</strong> -- share of ai cited articles human written for ChatGPT and Perplexity citations<br><small>Source: Graphite (2026) · <a href="https://lighthousedata.io/data/ai-cited-articles-human-written" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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