AetheryaThe cognition model is identical on every plan, including the free one. What you buy is how much you can run, how many people can run it, and whose data the populations are built from.
Try Thesia
Free for everyone
2–5 simulations a month*
on a panel of 25–50 personas
Includes:
For founders, marketers, and solo operators
Per month with annual subscription discount (€216 billed up front). €20 if billed monthly.
No commitment · Cancel anytime
8–16 simulations a month*
on a panel of 25–50 personas
Everything in Free, plus:
5–12× more usage than Pro
Per month with annual subscription discount (€1,080 billed up front). €100 if billed monthly.
No commitment · Cancel anytime
40–80 simulations a month*
on a panel of 25–50 personas
Everything in Thesia Pro, plus:
These counts assume a small panel — 25 to 50 synthetic personas at standard depth — which is why each plan shows a range rather than a single number. A bigger panel, multi-round deliberation, or a full cognitive audit uses proportionally more of your monthly capacity. Aetherya shows exactly what a study will use before you launch it, so you are never guessing.
How usage is measuredFree through Studio use Aetherya's standard populations, and runs expire. Pleroma is where your own data goes in: populations persist, and predictions are calibrated against your real outcomes.
About PleromaThesia plans are self-serve workspaces. If you want Aetherya to design, run, and debrief the work, start with a scoped engagement.
Scoped engagement
From €3,000
We design, run, and debrief a bounded study. You receive an evidence pack with stated assumptions and uncertainty, not a guaranteed market outcome.
Request a sprintOngoing cadence
From €7,500/month
Ongoing simulation support for teams that need a decision cadence across launches, campaigns, and product bets.
Discuss a partnership