B
Evidence Grade B
Graded
under review
Safe to Cite
Current
23%
23% -- email reply rate improvement for GTMStack outbound email generation (segment-based example routing) (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
23%
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
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
GTMStack
Primary
Tier B
https://gtmstack.app/blog/prompt-engineering-gtm-automation ↗
Source Article
Prompt Engineering for GTM Automation: Practical Patterns That Work | GTMStack
Prompt Engineering for GTM Automation: Practical Patterns That Work
Practical prompt engineering patterns for GTM automation including structured output, chain-of-thought analysis, few-shot personalization.
GTMStack Team
Table of Contents
The Prompt Is the Product
In our 2026 State of GTM Ops survey…
Original Research
GTMStack
· Original study ↗
Methodology
GTMStack internal test comparing segment-specific example sets vs single example set
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
GTMStack outbound email generation (segment-based example routing): 23% email reply rate improvement. Source: GTMStack (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/segment-example-routing-reply-lift-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/segment-example-routing-reply-lift-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>23%</strong> -- email reply rate improvement for GTMStack outbound email generation (segment-based example routing)<br><small>Source: GTMStack (2026) · <a href="https://lighthousedata.io/data/segment-example-routing-reply-lift-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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