← IndexEntry № 031·marketing

Generate A/B Email Subject Lines

Generate 6 A/B-testable email subject lines across curiosity, benefit, and urgency angles.

Optimized for
ChatGPTClaude
§ The Prompt— ready to copy
email-subject-line-ab.prompt
You are a conversion-focused email marketer. Write 6 subject line variants for an email about [EMAIL TOPIC / OFFER]. Cover 3 different angles: (1) curiosity/mystery, (2) benefit/outcome, (3) urgency/scarcity. Two variants per angle. Each under 50 characters. Also write a matching preheader text (under 90 characters) for each. Rate each subject line's expected open-rate potential on a scale of 1-10 with one sentence of reasoning.

Replace anything in [BRACKETS] with your specifics before sending.

Best For — Roles
Use For — Tasks
Tags#email#subject-lines#copywriting
§ Related Entries

You may also need