Test creative with
AI-powered personas
Simulate customer reactions in seconds—before you spend, ship, or scale. No surveys. No guesswork. Just clear signal from your ICP.
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Talking to customers is the highest-ROI
marketing move—yet 90% of teams skip it
Why?
It's awkward. It's time-consuming. And most teams are moving too fast.
So we launch based on gut feel.
- xWe A/B test too late.
- xWe argue in Slack instead of using real insights
- xWe waste time and miss opportunities
Delfi changes that—with instant persona feedback built for modern workflows.
Fix it!
Don't just guess, verify with your virtual target audience!
“I think this headline is too aggressive...”
“But our competitor uses similar language”
“Should we just ship it and see?”
3 hours of debate, 0 customer insights
Built for teams who move fast, and prefer
data to debate
Delfi gives you high-signal feedback without the friction. No panels. No waiting. Just clear answers from AI-powered personas trained to think like your customer.
Simulated Personas
Test your message with behaviorally modeled customers—no awkward calls or slow surveys.



Instant Scorecards
Get structured, honest feedback on clarity, tone, emotional pull, and message-market fit.
Ready to stop guessing and start knowing?
Join hundreds of teams already using Delfi to validate their messaging before launch.
Join the Beta — 50% Off + Free First MonthTry Delfi for $0. Just add a credit card. Cancel anytime.