Library/Outreach & Messaging/First-Touch & Cold Outreach/Generate 10 Cold Email Subject Lines by Style
TestedOutreach & MessagingQuick Win (under 10 min)

Generate 10 Cold Email Subject Lines by Style

Produce ten categorized subject line options for a cold campaign, each with rationale and A/B test guidance.

About this prompt

This prompt generates ten subject lines for a cold email campaign, covering ten distinct styles from curiosity gap to pattern interrupt. It's built for SDRs and BDRs crafting outreach sequences for a specific persona and industry. Use it when starting a new campaign or A/B testing an underperforming subject line block.Before you write a single email body, the subject line determines whether anything gets read. This prompt produces ten subject lines mapped to ten proven styles — curiosity gap, benefit-driven, pain-driven, question, personalized, stat-based, social proof, urgency, direct ask, and pattern interrupt — so you can test across different prospect response modes in the same sequence. Fill in [TITLE] with the persona's job title, [INDUSTRY] with the vertical you're targeting, [WHAT YOU SOLVE] with your specific pain-point angle, and [TONE] to match the culture of the account. Each subject line comes with a rationale explaining why it might work, a note on when to deploy it, and a suggested A/B variant. This prompt is best used at the campaign-build stage, not mid-sequence — it's for SDRs designing an outreach cadence from scratch. For best results, run the output against your historical open-rate data and prioritize the styles that have historically performed for your specific [INDUSTRY]; not every style lands equally in every vertical.

The prompt

Generate email subject lines for this campaign. Context: ● Target persona: [TITLE] ● Industry: [INDUSTRY] ● Pain point: [WHAT YOU SOLVE] ● Tone: [PROFESSIONAL / CASUAL / DIRECT] Generate 10 subject l
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Variables to replace

TITLE|INDUSTRY|WHAT YOU SOLVE|PROFESSIONAL / CASUAL / DIRECT

How to run it

  1. Copy the prompt and paste it into Claude, ChatGPT, Gemini, or Copilot — it's tuned to run in any of them.
  2. Replace the variables — swap each bracketed token for your deal's specifics. The variables list above explains every field.
  3. Make it yours — run it, keep what's strong, and tighten your inputs on the next pass. The prompt improves with your context.

What good output looks like

Make it yours

StageProspecting
SeatSDR, BDR, AE
DifficultyIntermediate
Time to valueQuick Win (under 10 min)
Works withAI-Agnostic
CategoryOutreach & Messaging
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