Email Subject Line Optimization

Optimize email subject lines for {{email_campaign}}.

Approach 1 - Direct Benefit:
Generate 3 subject lines stating clear benefit
Strengths: Clear value, sets expectations
Weaknesses: May feel generic, low curiosity
Predicted open rate impact

Approach 2 - Question Format:
Generate 3 subject lines as questions
Strengths: Engages curiosity, feels personal
Weaknesses: Can feel manipulative if overdone
Predicted open rate impact

Approach 3 - Personalization:
Generate 3 subject lines with personalization
Strengths: Higher relevance, stands out
Weaknesses: Requires good data, can feel creepy
Predicted open rate impact

Approach 4 - Urgency/Scarcity:
Generate 3 subject lines with urgency elements
Strengths: Drives quick action, cuts through noise
Weaknesses: Loses effectiveness if overused
Predicted open rate impact

Approach 5 - Story/Intrigue:
Generate 3 subject lines creating narrative hook
Strengths: Differentiates, builds connection
Weaknesses: May not match email content
Predicted open rate impact

Final Recommendation:
Rank top 5 subject lines across all approaches
Suggest A/B testing pairs
Note audience segment considerations.