email · GPT-4o · free
Generate 20 subject line variants for this email, structured for a real A/B test — not just riffs. Email context: Purpose: [PROMO / NEWSLETTER / TRANSACTIONAL / RE ENGAGEMENT] Body summary: [PASTE OR DESCRIBE] Audience: [WHO] Sender persona: [BRAND / PERSON] Group the 20 into 5 psychological angles (4 each): curiosity gap, direct benefit, personal/relational, urgency/scarcity, contrarian/pattern break. For each variant, include: The line (under 50 chars) Predicted open rate driver in 6 words One preheader that pairs with it (under 90 chars) Also flag the 3 lines most likely to trip spam filters and explain why. Skip: ALL CAPS, "RE:", fake "Fwd:", emojis in every one.
#subject-lines #a-b-test #open-rate