Research in your browser
Set up studies, explore responses and compare findings in Sunzu’s visual workspace.
AI user research
Ship smarter
User insights. Lightning fast.
Discover what people want before you ship.
Test ideas and designs in minutes.
From our web app or your AI assistant.
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
From discovery to confident launch
- Discover Depth interviews Understand what people need.
- Shape Concept testing Choose the strongest direction.
- Refine UX testing Find friction before release.
- Launch Ad testing See what earns attention.
Get ~80% of all possible insights in minutes. All signal. No noise.
Why trust Sunzu
Two ways to use Sunzu
User insights, wherever you work
Research where you build
Run depth interviews, concept tests and UX tests directly from your AI assistant.
Product development
The right research for every decision
-
Discover
Depth interviews
Clarify the problem, priorities and language that matter before you commit time or budget.
- Equivalent sample size
- 6+
- human users
Open the full depth interviews demo Themes covered Sunzu in minutes 76%Human expert with AI in days 54%Human insights, retested in months 100% -
Shape
Concept testing
Compare early directions with the people you need to reach, then back the strongest proposition.
- Equivalent sample size
- 30+
- human users
Open the full concept testing demo Insights found Sunzu in minutes 85%Human expert with AI in days 58%Research, 500+ humans in months 100% -
Refine
UX testing
Spot friction in the journey before release, while changes are still quick and inexpensive.
- Equivalent to hiring
- 5+
- human UX experts
Open the full ux testing demo Defects detected Sunzu in minutes 75%Human expert with AI in days 34%Research, 500+ humans in months 100% -
Launch
Ad testing
Find the message and creative most likely to earn attention before you put spend behind it.
- Equivalent sample size
- 20+
- human users
Open the full ad testing demo Insights found Sunzu in minutes 69%Human expert with AI in days 55%Research, 500+ humans in months 100%
Study-specific internal back-testing. How to read these benchmarks
Foundations
Trust built on evidence
Traceable
Follow findings back to their sources, so you can check the evidence and explain your decisions.
Benchmarked
Performance measured against real human findings, so you know what to expect.
Focused
95% less noise than standard generative AI solutions.
Grounded in continuously updated data
- 57M+
- Signals
- 4k+
- Evidence sources
- 1M+
- Profiles
- 34M+
- Mapped attributes
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 synthetic humans 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.