B
Evidence Grade B
Graded
under review
Safe to Cite
Current
50%
50% -- ai content best position second serp rate for Best-ranking AI-created content page per keyword (≥90% AI content) (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
50%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
11,994
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Graphite
Primary
Tier A
https://graphite.io/five-percent/research/ai-content-and-search ↗
Source Article
AI Content & Search
AI Content & Search
Key Takeaways
Pure AI-generated content makes up only about 3% of organic search results, while pages with more than 50% AI content make up 12% — contrary to the claim that AI content is flooding Google.
URLs with minimal to no AI content dominate the search results for the first…
Original Research
Graphite
· Original study ↗
Methodology
For each of 2,200 keywords, the top-ranking page per AI-content category was identified; AI-created pages' best positions worsen as AI content share increases, with human-written content consistently outranking AI content. Authors caveat ranking depends on many variables.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Best-ranking AI-created content page per keyword (≥90% AI content): 50% ai content best position second serp rate. Source: Graphite (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-content-second-serp-ranking-rate-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-content-second-serp-ranking-rate-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>50%</strong> -- ai content best position second serp rate for Best-ranking AI-created content page per keyword (≥90% AI content)<br><small>Source: Graphite (2026) · <a href="https://lighthousedata.io/data/ai-content-second-serp-ranking-rate-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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