1M+ AI personas ready to respond

Test in the simulation
Sell in the real world

Simulated market panels powered by market-realistic personas help founders and product teams eliminate weak ideas early.

View Sample reports →
80%

of ideas fail — validate first

48 hrs

average time to kill bad ideas

10x

cheaper than focus groups per insight

The New Way

Get market signal in minutes.
before you talk to real users.

TestSynthia is a living market simulation. 1M+ stateful AI personas with persistent memory, social context, and evolving opinions react to your idea before the real world gets a vote. Full report in 10 minutes.

  • Signal in 10 Minutes

    Run pricing, messaging, and concept tests in an afternoon. No recruitment. No waiting. Just directional answers you can act on today.

  • Stateful, Not Stateless

    Our personas carry 4 layers of memory — product, social, world events, and reflection. They remember, talk to each other, and evolve. That's what makes the signal real.

  • Wind Tunnel First

    Kill weak assumptions with a $2.99 demo run before you commit engineering time or research budget. Directional certainty beats perfect data when speed matters.

Feedback by Segment
All SegmentsAge 25-34Tech WorkersHigh Income
4.5
Avg Rating
78%
Positive
1.2k
Responses
Thematic Analysis
Key Drivers
Easy to useTime savingGood value
Key Barriers
Price too highMissing features
Sample Feedback
"I love how intuitive the interface is. It saved me hours of work every week."
JD
Software Engineer
Age 32 • San Francisco
5.0

How it works

Three steps.
Market preview before you ship

Define your product and questions

Describe what you're selling — the product, the value, the transformation. Then add questions that reveal intent: NPS, PMF, open-ended, pricing, and more.

Product

AI Market Research Platform

Helps founders validate ideas in minutes

NPS

How likely are you to recommend this?

PMF

How disappointed if this disappeared?

Pricing

Which tier would you choose?

Target Your Audience

Filter by demographics that match your ideal customer. No more guessing. Target the exact segment you're building for.

LocationUnited States
Age Range
25-45
Income
$50k-$75k$75k-$100k$100k+
OccupationFounder

Segment & Analyze

Run deep-dive analysis on different demographic segments. Find your beachhead market — the specific segment that desperately needs what you're building.

Love it

68%

Hate it

12%

Neutral

20%

★

Beachhead Market

Founders aged 25-34 with $75k+ income show 4.2× higher intent

Platform

Explore simulation workflows

Questions list

Build custom surveys with rating scales, open-ended questions, and multiple choice

Audience Targeting

Filter by demographics, location, income, education, and occupations

Segments and Deepdive

Deep dive into feedback with demographic segmentation and thematic analysis

Memories & Persistence

Personas remember past surveys and social interactions

Social Network & Clusters

Visualize connections and persona clusters with force-directed graphs

Research Questions

How likely are you to recommend this product to a friend?

What is the primary problem this product solves for you?

Which pricing tier would you choose?

How disappointed would you be if this product no longer existed?

Pricing

Simple pricing. No contracts
Pay-per-insight

Frequently asked questions

Anything you need feedback on — pricing, messaging, features, naming, ads, landing pages, email campaigns, and more. If you can ask a question, you can simulate responses.

Kill weak ideas before
they cost you months.

You don't need perfect data. You need directional certainty fast.

Results in minutes.