Product7 min readUpdated Jan 9, 2026

How real and synthetic data work together to outlearn your market.

There's a trap in synthetic research right now: fast tools, flimsy answers. Here's why grounding a synthetic persona in live experiments — not scraped text — is what turns speed into a real advantage.

Rutger Coolen
Rutger Coolen
Chief Product Officer, Heatseeker · Formerly Head of Product at Atlassian
Key takeaways
  • Synthetic tools trained on scraped data are fast but disconnected from your market.
  • Heatseeker grounds the model in live experiments before anything goes synthetic.
  • Real and synthetic form a loop — each cycle increases precision and your edge.

The short answer

Real data and synthetic data aren't rivals — they're two halves of one engine. Live experiments give you verified behavior; synthetic personas let you explore at the speed of thought. The trick is sequence: ground the model in real behavior first, then let it run synthetically. Done in that order, every cycle makes the next one sharper.

The speed-without-signal trap

Many platforms promise insights in seconds, but they're pulling from scraped web data or survey-trained bots. They sound smart and answer instantly — yet they're not grounded in your market or your customers. The result is impressive speed with very little relevance: insight disconnected from reality.

Fast is not useful if it's wrong. Teams that chase speed without signal end up making decisions fueled by synthetic confidence rather than behavioral truth.

Real first, then synthetic

Heatseeker takes the opposite path. Before anything becomes synthetic, it has to be grounded in the real world — which is why it begins with live market experiments. Real ads. Real channels. Real customers making real choices. You put competing variants of your message, value prop or creative into the market and watch what people actually do.

Only then does that verified behavior become the training ground for a synthetic persona. The persona inherits the grounding, so when you question it later, the answer is anchored to evidence rather than to averages scraped from the internet.

After a few cycles, your model stops behaving like an abstract tool and starts behaving like your market.

The compounding loop

The two engines make each other smarter on a simple cadence:

  • You run a real experiment. The model learns.
  • You test with the model to narrow what's worth running next.
  • Your next real experiment improves. The model learns again.

Each loop increases precision. Each loop increases confidence. Each loop increases your advantage — until predictions are calibrated to up to 95% correlation with real behavior and answers arrive in minutes.

Your model is yours

The biggest misconception about synthetic tools is that they're all created equal. They're not. Most plug into a single, shared model — your questions get answered by the same generic system that answers everyone else's. There's no edge in sameness dressed up as intelligence.

With Heatseeker, your synthetic audience is yours: trained on your tests, your first-party data, your behavioral signals. No one else gets access to it, and no one else benefits from the learning you create.

Build a model that behaves like your market.

See the real-to-synthetic loop on your own data.

Book a demo →

Frequently asked questions

Are all synthetic research tools the same?

No. Most tools plug into a single shared model, so your questions get answered by the same generic system that answers everyone else's. Heatseeker trains a private synthetic audience on your tests, your first-party data and your behavioral signals — no one else gets access to it.

Why ground synthetic personas in live experiments?

Personas trained only on scraped web data or surveys sound smart but aren't grounded in your market. Heatseeker begins with live experiments — real ads, real channels, real customers — so the model is anchored to verified behavior before anything becomes synthetic.

How does the real-synthetic loop improve over time?

You run a real experiment, the model learns; you test with the model, your next real experiment improves; the model learns again. Each loop increases precision, confidence and your advantage.

Rutger Coolen
Rutger Coolen
Chief Product Officer, Heatseeker

Rutger leads product at Heatseeker. He writes about model calibration, the real-versus-synthetic loop, and building research tools teams actually trust.

Keep reading

Decide on what they do, not what they say.

Put your next contested call in front of real buyers. Proof in days, not quarters.

Book a 15-minute demo →