B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
21%
21% -- ai generated content share of shorts feed for YouTube Shorts (new users) (2026)
AI-generated slop accounts for 21% of YouTube Shorts shown to new users.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
21%
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
75
Source Trust
90
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
searchenginejournal.com
Primary
Tier B
http://www.searchenginejournal.com/category/social-media-marketing/youtube-social-media-marketing/ ↗
Source Article
Ultimate Guide To YouTube Marketing
Original Research
searchenginejournal.com
· Original study ↗
Methodology
Share of the YouTube Shorts feed shown to new users identified as AI-generated ('slop') content; underlying dataset and measurement window not detailed in the summary.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
YouTube Shorts (new users): 21% ai generated content share of shorts feed. Source: searchenginejournal.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-generated-shorts-share-new-users
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-generated-shorts-share-new-users" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>21%</strong> -- ai generated content share of shorts feed for YouTube Shorts (new users)<br><small>Source: searchenginejournal.com (2026) · <a href="https://lighthousedata.io/data/ai-generated-shorts-share-new-users" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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