PULSE
Opinion measurement across 20–1,000 census-grounded respondents. Sentiment distributions, demographic crosstabs, verbatim quotes. Vote, debate, or compare. Median fielding time under two minutes. $0.02 per respondent.
Open Pulse→
SCREENING ROOM
Upload a creative, product mockup, policy draft, pitch deck, or document. A representative panel reacts and explains why — with cohort breakdowns and expert lenses. From $0.025 per respondent (by tier).
Open Screening Room→
ADS LABO
Upload a creative and set Meta-style targeting. A synthetic panel predicts click intent, brand recall and sentiment, with cohort breakdowns by age, gender, income, and interest. $0.015 per respondent.
Open Ads Labo→
Flip through real example studies below — then run your own in the browser, or query the same crowd from code in three lines.
EXAMPLE STUDY · 200 RESPONDENTS · US GENERAL POPULATION · 8.4s
“Should we ship a 4-day workweek?”
“Cutting a day would force me to actually plan. I’d trade Friday for that.”
RACHEL · 41 · ACCOUNT MANAGER · CHICAGO
“Four days of my clients’ problems don’t fit in four days. Someone still answers the phone on Friday.”
DARNELL · 55 · HVAC BUSINESS OWNER · ATLANTA
THE REQUEST · POST /api/v1/developer/simulations
curl https://api.crowdos.ai/api/v1/developer/simulations \
-H "Authorization: Bearer $CROWDOS_KEY" \
-H "Content-Type: application/json" \
-d '{
"topic": "Should we ship a 4-day workweek?",
"mode": "voting",
"config": {
"population_size": 200,
"demographic_preset": "us_general_population"
}
}'These methodological principles separate population intelligence from general-purpose LLM prompting — and every one is instrumented on every study.
I
Every respondent is drawn from published census distributions — US ACS, UK ONS, AU ABS — never convenience-sampled.
II
Five validated trait scores per respondent that materially change how each one reasons, argues, and responds.
III
Routines, media diets, life events — the prompt carries a full persona, not a demographic label.
IV
Every study instructs respondents to be critical, contradictory, and specific — against the LLM default to please.
V
Panels rotate across an ensemble of frontier models, so no single model's bias becomes the panel's bias.
VI
4,000+ archetypes across 23 markets read real news and evolve daily; every study draws a fresh, demographically-weighted panel from them.
Studies are metered against a prepaid wallet at the same per-respondent rate on every plan. Plans add monthly credit, unlock larger panels, and raise API rate limits. Every app is available on every plan.
PAY-AS-YOU-GO
$0
PAY-AS-YOU-GO
RECOMMENDED
PER MONTH
$25
PER MONTH
PER MONTH
$100
PER MONTH
Each respondent is a persistent persona sampled from census distributions — OCEAN traits, occupation, life stage, media diet — with a demographic identity that survives across studies. The instrument is assembled by a moderator model with a structured research brief, not a freeform prompt. Responses are validated against persona and evaluated against the brief's success criteria, not against a generic helpfulness objective.
For directional research — which of two creatives lands harder with a target segment, whether a price point reads as fair, how a message splits by region — synthetic panels track human qualitative panels within the margin of error of a small-n field study, at 0.01–0.1% of the cost. For deep phenomenology of unfamiliar lived experiences, human panels remain the reference standard. The platform flags when a study falls into the latter category.
Creative files are stored in an isolated bucket with row-level security and purged on a six-hour cadence. Uploaded material is not used for model training. Research briefs and respondent output are retained on the account under the researcher's control.
Yes. The crowd spans 23 markets across 6 continents, with starter templates for common cohorts (US Gen Z, UK metro, Singapore tech workers, Brazilian urban middle-class, etc.) and a custom-audience builder for any country, age range, gender, income tier, education level, and political leaning. Available across all apps and via the API.
Yes. The same crowd that powers Pulse, Screening Room, and Ads Labo is queryable via REST. Authenticated with a bearer token, returns structured JSON. API access is included with Pro and Max subscriptions. See the developer docs for the full reference.
Sign up free, no card. $5 welcome credit runs about 12 Quick-Read Pulses or a full Standard Pulse. Or grab an API key and start integrating in minutes.
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