B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
13.1%
13.1% -- outbound reply rate for Human-written outbound sequences (GTMStack test) (2026)
Human-written outbound sequences achieved a 13.1% reply rate in GTMStack's A/B test across 8,000 sends.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
13.1%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
8,000
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/small-gtm-team-ai-automation ↗
Source Article
The Rise of the Small GTM Team: Doing More With AI and Automation | GTMStack
The Rise of the Small GTM Team: Doing More With AI and Automation
GTM teams are getting smaller and more effective. Here's how AI and automation enable a lean team to outperform traditional large-scale go-to-market.
GTMStack Team
Table of Contents
The Headcount Era Is Over
Something fundamental has …
Original Research
GTMStack
· Original study ↗
Methodology
GTMStack A/B test across 8,000 sends
Methodology documented
Segmentation
IndustryMarTech
Company SizeSMB
RoleAll marketers
Channelemail
Cite this stat
Plain Text
Human-written outbound sequences (GTMStack test): 13.1% outbound reply rate. Source: GTMStack (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/human-sequence-reply-rate-13-1
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<blockquote cite="https://lighthousedata.io/data/human-sequence-reply-rate-13-1" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>13.1%</strong> -- outbound reply rate for Human-written outbound sequences (GTMStack test)<br><small>Source: GTMStack (2026) · <a href="https://lighthousedata.io/data/human-sequence-reply-rate-13-1" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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