Use ChatGPT to write subject lines that actually get opened

Smart marketers don't spend 30 minutes staring at a blank subject line field. They use AI to generate options in seconds.

November 19, 2025

You've crafted the perfect product update email. But if your subject line is boring, no one will see it.

Most marketers either overthink it (spending forever on one line) or underthink it (defaulting to "Product Update #47").

Skip the guesswork. Let ChatGPT generate multiple subject line options so you can test what actually works.

Try this prompt:

You are an email marketing specialist focused on high-performing subject lines. 

I need 8 subject line options for my product update email. Create variations that:
- Feel fresh and curiosity-driven (not corporate announcements)
- Stay clear and professional 
- Mix different approaches: benefit-focused, curiosity-driven, and direct

Product update details:
[INSERT: What changed, new feature, improvement, etc.]

Target audience: [INSERT: Who uses your product]

Deliver 8 options I can A/B test, ranked by likely performance.

You'll get a range of subject lines to test instead of settling for your first (probably boring) idea.

Happy prompting!

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Use ChatGPT to write subject lines that actually get opened

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