Speed up weekly email subject line creation using AI to generate and test options quickly.

Every week, writing fresh, catchy email subject lines can take a lot of time and trial-and-error. This workflow uses AI to quickly generate a variety of subject lines, then helps you pick the best ones faster. Instead of staring at a blank page or guessing what works, you get a shortlist of tested ideas in minutes. Follow these steps each week before sending your marketing emails to save time and get better open rates: 1. Start by telling AI the key message or offer in your email. 2. Ask AI to create 10 different subject lines that are short, clear, and attention-grabbing. 3. Request AI to rate each subject line on likely open appeal (e.g., curiosity, urgency, clarity). 4. Pick the top 3 subject lines based on AI’s ratings and your preferences. 5. Test these 3 subject lines by sending to small groups or use AI to suggest which might perform best. 6. Use the winning subject line for your full email blast, confident you saved time and boosted impact.

Try this prompt today

Act as a marketing expert. Create 10 catchy and clear email subject lines for an email promoting a 20% discount on summer outdoor gear. Then, rate each subject line from 1 to 10 on how likely it is to get people to open the email.

March 7, 2026

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