B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
4%
4% -- citation share decay rate for AI search visibility (ChatGPT, Perplexity, Google AI Overviews, Claude, Gemini) (2026)
Brand citation share in AI search answers decays at approximately 4% per month without content refreshes.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
4%
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
Clairon
Primary
Tier C
https://www.shadow.inc/resources/ai-visibility-audit-guide ↗
Source Article
How to Run an AI Visibility Audit: A Step-by-Step Guide for Brands and Agencies
Last updated: June 8, 2026 · By Jessen Gibbs, CEO, Shadow
TL;DR
An AI visibility audit evaluates your brand's presence across ChatGPT, Perplexity, Google AI Overviews, Claude, and Gemini for your target queries. It identifies citation gaps, competitive positioning, hallucinations, and technical bloc…
Original Research
Clairon
· Original study ↗
Methodology
Cited by Shadow from Clairon (2026); decay rate for brand citation share in AI-generated answers without content refreshes
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI search visibility (ChatGPT, Perplexity, Google AI Overviews, Claude, Gemini): 4% citation share decay rate. Source: Clairon (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-citation-share-decay-4-percent-monthly
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-citation-share-decay-4-percent-monthly" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>4%</strong> -- citation share decay rate for AI search visibility (ChatGPT, Perplexity, Google AI Overviews, Claude, Gemini)<br><small>Source: Clairon (2026) · <a href="https://lighthousedata.io/data/ai-citation-share-decay-4-percent-monthly" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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