02/15/2026
I’m currently building a small local agency using AI + funnels.
As part of that, I revisited a subject line framework I bought about 4 years ago and ran a rebuild experiment.
Same ideas.
Same intent.
Modern AI.
I rewrote 30 subject lines using today’s prompting and documented everything side by side:
* old prompts vs new prompts
* original outputs vs current outputs
* what actually changed and why
Biggest difference?
Not hype. Just more human, more specific, and more aligned with how people read now.
I pulled the full breakdown together so you can see the evolution from 2022 → now.
If you’re curious, comment **AI** and I’ll send it over.