The customer segment this campaign is designed to reach
Ground the study in customer evidence relevant to this decision.
Sunzu for performance and creative agencies
Pressure-test the creative.
Before the media spend.
You have several angles, a client deadline and a budget to put behind the winner. Explore what the audience understands, believes and questions before the campaign launches.
Used by
- Insights analysts
- Product managers
- UX designers
- Marketing strategists
- Copywriters
- Go-to-market leads
- Growth managers
Trusted by
Backed by
- Microsoft for Startups
- NatWest Accelerator
The work in front of you
Give creative selection something to stand on.
Use the study to sharpen the creative and explain your recommendation. Let the campaign measure actual clicks, conversions and return.
- Concept testing
Check the idea before production
Compare campaign concepts and understand the appeal and objections behind each route.
Explore concept testing - Ad testing
Review the finished creative
Use ad testing to examine how the message lands when the visual and copy are seen together.
Explore ad testing - Ad testing
Support the client’s creative decision
Bring audience reactions to the review so you can explain which angle to develop and what to test in market.
Explore ad testing
Your next study
Which creative angle deserves a live test?
Bring a real question. We’ll scope the audience, evidence and study together.
Start with what you have
Ad creative
Message alternatives
Campaign objective
From research to a decision
A better brief for the media test
Keep the question, the evidence and the next action connected.
Ask
Should the campaign lead with a product benefit, a customer problem or social proof?
Examine
Explore understanding, relevance and credibility across the creative routes. Examine objections that the next version could address.
Act
Shortlist the angles with the strongest rationale and measure their performance with live traffic.
Illustrative research brief. This is an example of how to use findings, not a completed customer study or a product screenshot.
Internal back-testing
Ad testing. Measured against a human reference.
Sunzuin minutes69%
Human expert with AIin days55%
Research, 500+ humansin months100%
Sunzu internal back-testing. Research, 500+ humans is the reference set to 100%. This is a study-specific comparison, not an overall accuracy score or a guarantee for your study.
From our customers
Relied on by global experts
Director, Consumer Insights & Strategy
In just a couple of months, over 170 of our colleagues have run over 500 studies.
We’re now directly integrating audiences into many of our research, product and marketing workflows.
Director, Global Product and Design UX Research
In a market flooded with AI-generated noise, this was the first platform that genuinely earned our trust.
By grounding its models in research principles, behavioural science, and real customer data, it delivers insights that feel credible, transparent, and actionable.
It changed our perspective on what’s possible with AI in customer research.
A few useful answers
Before your first study.
No guaranteed performance prediction is offered. Ad testing explores audience reactions and helps you decide what to take into a live media test.
Ad testing is available in the Sunzu web app. The current MCP workflows are depth interviews, concept tests and UX tests.
Sunzu creates audience characters grounded in customer evidence and enriched with a behavioural corpus. They are simulations. Use findings to explore directions and sharpen questions; lived experience, unexpected behaviour and consequential decisions still need research with real people.
Sunzu for performance and creative agencies