AI-generated virtual respondents that answer your survey — before real users do.
Validate questions, predict response distributions, and fill low-response gaps using realistic AI personas with unique demographics, personalities, and behavioral patterns.
< 60s
Average run time for 100 synthetic responses
18+
Built-in personas across 4 continents
3 modes
Pre-validate, Boost, and Persona Marketplace
Four simple steps from survey to AI-powered insights
Select any survey you have created on Untold Opinion to run through AI personas.
Pre-validate before launch, boost low responses, or run through the Persona Marketplace.
Select personas, set your target response count, and customise audience segments.
AI generates responses in under 60 seconds with a full analysis report and insights.
Choose the mode that fits your research stage — or use all three together.
Run your survey through AI personas before sending it to real users. Catch confusing questions, predict response distributions, and fix bias before it costs you.
When your live survey has low real responses, AI fills the gap with synthetic responses calibrated to match your real audience. Every report clearly labels real vs synthetic.
Pick from 18 built-in AI personas — each with unique demographics, psychographics, and behavioral patterns — or build your own custom persona.
Validate product feedback surveys before spending on user research panels.
Get directional data instantly while waiting for real panel responses.
Pre-test survey instruments and identify question bias before field deployment.
Quickly simulate client audience responses to inform strategy recommendations.
Test messaging surveys across different demographic personas before campaigns.
Validate employee survey questions for clarity and neutrality before rollout.
Create a free account and run your first synthetic user survey in under 2 minutes.