Sapien

Synthetic populations for decisions

1.2Score#984 of 999 agents#11 of 11 in Market researcher

Why it ranks #984

Sapien, an AI market researcher from YC S25, ranks #984 of 999 AI agents and #11 of 11 in Market researcher, with a score of 1.2 of 10. Data as of 3 Oct 2026.

The score adds four parts, each 0 to 10, by weight. Every point comes from public evidence. How scoring works ·

Proof 0 × 30% 0.0
Scale 1 × 30% 0.3
Momentum 0 × 25% 0.0
Autonomy 6 × 15% 0.9
= 1.2

Proof
Do customers use it? 30% of the score
0
No public claims of customers or revenue yet.
Not found: revenue or growth (+4), named customers (+3), a customer result (+2), a customer count (+2), work done at scale (+2)
Scale
Is there a real company behind it? 30% of the score
1
2 people.
- +1
  2 people on its YC page2 people
Not found: funding round in its news (+3)
Momentum
Is it shipping and growing now? 25% of the score
0
Nothing new in the last 6 months.
Not found: launch YC post in the last 6 months (+3), open roles on YC (+2), new traction claim in the last 6 months (+2), funding news in the last year (+2), a batch in the last year (it is YC Summer 2025) (+1)
Autonomy
How much of the job does it do on its own? 15% of the score
6
Supervised agent: takes actions in other systems; a person approves key steps.
- +6
  Level 2 of 4: Supervised agentTakes actions in other systems; a person approves key steps.
What the model read
- Acts in other systems: 6% likely
- Finishes whole tasks: 13% likely
- Calls itself an agent: 97% likely
- Level 1 from the model's reading of its pages; the evidence review found, with quotes, that its AI acts in the work, so the level is 2
Level 2: Takes actions in other systems; a person approves key steps.

About Sapien

Surveys ask people what they think they’ll do. Focus groups ask a handful of people to explain behavior they often don’t understand themselves.

Sapien simulates entire populations instead. We create AI agents that model how real audiences behave, letting companies, governments, and investors test decisions in minutes: what product to launch, what price to set, what campaign to run, what policy will work, or how a market will move.

The output is not another dashboard. It’s a prediction of what will happen, which segments will drive it, and what decision is most likely to win.