Write 5 Subject Line Variants for an Email Campaign

5 ready-to-test subject lines using 5 different proven copywriting techniques.

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Recommended modelClaude Haiku 4.5

Instant responses for simple, high-frequency tasks

What you need to fill in

[what the email is about][who you're sending to][what you want them to do]

Tools used

ClaudeChatGPT

The prompt

Write 5 subject line variants for this email campaign. Each should use a different copywriting approach. Email topic: [describe what the email is about] Audience: [who you're sending to] Goal: [what you want them to do — open? click? reply?] Approaches to use: 1. Curiosity gap 2. Benefit-first (what's in it for them) 3. Urgency or scarcity 4. Personal / conversational 5. Question

Open in Claude

Sample output

**Email:** Product update email — new AI feature for enterprise customers 1. **Curiosity gap:** The one Claude integration most enterprise teams haven't tried yet 2. **Benefit-first:** Cut your report review time by 60% — here's the feature that does it 3. **Urgency:** Early access closes Friday — your team's spot is reserved 4. **Conversational:** Quick question about your Q3 reporting workflow 5. **Question:** What if your team spent 3 hours less on reports every week?

Try with these tools

claude chatgpt jasper copy ai

emailmarketingsubject-linecopywriting

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