Test your idea on 1,000 synthetic minds before you spend a single euro.
Describe your idea. Windrose Institute simulates how your target customers would respond, and gives you a ranking, a direction, and hypotheses worth testing. Not made-up percentages.
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Describe your idea in plain language.
No survey design, no brief. One paragraph is enough.
We simulate a population, not an average.
1,000 personas built from census demographics and survey attitudes respond through a cognition model, counterbalanced †2, distribution-first.
You get a compass, not a verdict.
Which variant is stronger, for whom, why, and exactly what to test in the real world next.
Any AI can print "your conversion will be 23%." It will be wrong.
Synthetic research has a dirty secret: the numbers look precise and aren't. Peer-reviewed work †1 shows that language models do not reliably reproduce human psychology, absolute predictions drift, distributions collapse, and confident decimals hide guesswork. We built Windrose Institute on that finding, not against it.
Read the full argument →A compass doesn't tell you where you'll land. It tells you which way to walk.
This page was tested on Windrose Institute before you saw it.
We simulated three versions of this very headline on a population of founders. The one you're reading ranked first. After launch, we'll publish the real numbers next to what we simulated, direction, not decimals. That's the loop: simulate, then verify.
Read the build story →Cheaper than one lunch. Radically cheaper than being wrong.
The real cost isn't the subscription, it's the quarter you spend building the wrong thing. Here is what a read costs against what a wrong bet costs.
Anchor scale, all four tiers, per-country pricing and billing live on the pricing page.
Reserve your founder price before we open.
The founder price is for people who back this early. Reserve now and it stays your rate for as long as you stay a member, even when public pricing goes up.
- →Founder price held for as long as you stay a member, even when public pricing goes up.
- →First access when runs open, ahead of the public queue.
- →No card now. We only ask when you decide to run for real.
We're getting the first runs ready. Founder pricing will be reservable right here shortly — check back soon.
Your idea never leaves the building.
Inference runs on our own hardware, not a third-party API. Your inputs are not training data. Deletion is a protocol, not a promise.
How we handle your data →Frequently asked, honestly answered.
What is synthetic market research?
Synthetic market research tests an idea against a simulated population of personas instead of recruiting real respondents. Windrose Institute builds 1,000 personas from census demographics and survey attitudes, then reports the direction of an effect and the ranking of your options, never absolute numbers.
Is AI market research accurate?
No honest tool can promise accurate absolute numbers, language models do not reliably reproduce human psychology. Windrose Institute reports only what it can defend: which option is stronger and for whom, each answer carrying an evidence label that shows where it can be trusted.
How much does synthetic market research cost?
Your first read on Windrose Institute is free, with no card. Full pricing opens with sign-ups, soon. A traditional market research study typically costs between €5,000 and €15,000.
How is Windrose Institute different from a survey or focus group?
A survey or focus group gathers a handful of real opinions over days or weeks. Windrose Institute simulates 1,000 personas in about a minute to tell you which conversations to have first, it narrows what to test, it does not replace real fieldwork.
Can AI predict what customers will do?
It cannot tell you exact outcomes, and any tool claiming a precise percentage is guessing. Windrose Institute instead points you toward the stronger direction and the hypotheses most worth testing with real customers.
Who is Windrose Institute for?
Founders, solo builders, and small direct-to-consumer teams weighing several ideas without a research budget, people who need a direction fast and want to know exactly how much to trust it.