B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
33%
33% -- share of recommendations brainrot content for YouTube recommendations to new users (2025)
33% of recommendations served to new YouTube users were classified as brainrot.
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
33%
Unit
Percentage
Data Vintage
2025
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
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
Kapwing
Primary
Tier B
https://vervocity.io/what-is-ai-slop/ ↗
Source Article
What is AI Slop? | Merriam-Webster's 2025 Word | Vervocity
AI slop is flooding the internet, and people are noticing.
Merriam-Webster named “slop” its 2025 Word of the Year, defining it as low-quality digital content that is usually produced in quantity by means of artificial intelligence (AI). The term captures a growing frustration with the flood of synth…
Original Research
Kapwing
· Original study ↗
Methodology
Same Kapwing study as the 21% AI slop figure
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
YouTube recommendations to new users: 33% share of recommendations brainrot content. Source: Kapwing (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/youtube-recommendations-brainrot-33-percent
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<blockquote cite="https://lighthousedata.io/data/youtube-recommendations-brainrot-33-percent" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>33%</strong> -- share of recommendations brainrot content for YouTube recommendations to new users<br><small>Source: Kapwing (2025) · <a href="https://lighthousedata.io/data/youtube-recommendations-brainrot-33-percent" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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