B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
25%
25% -- ai vs manual email click rate difference for AI-repurposed email copy (2026)
AI-repurposed email copy performed about 25% worse on click rates compared to manually crafted versions across 30 anchor posts.
- Represents performance of AI-repurposed email copy relative to manually crafted email copy, noted as performing about 25% worse.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
25%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
30
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
20
Independence
30
Methodology
45
Freshness
95
Source
GTMStack
Primary
Tier B
https://gtmstack.app/blog/ai-content-production-quality ↗
Source Article
AI Content Production for GTM Teams: Scale Without Killing Quality | GTMStack
AI Content Production for GTM Teams: Scale Without Killing Quality
A practical framework for AI-assisted content production — covering where AI helps, where it hurts, quality control checkpoints.
GTMStack Team
Table of Contents
The AI Content Spectrum
The conversation about AI in content production …
Original Research
GTMStack
· Original study ↗
Methodology
GTMStack analysis of repurposing output across 30 anchor posts
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI-repurposed email copy: 25% ai vs manual email click rate difference. Source: GTMStack (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-email-copy-click-rate-deficit
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-email-copy-click-rate-deficit" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- ai vs manual email click rate difference for AI-repurposed email copy<br><small>Source: GTMStack (2026) · <a href="https://lighthousedata.io/data/ai-email-copy-click-rate-deficit" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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