Decide
without guessing.

Test your decisions in synthetic societies.

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Aerial view of a very dense crowd gradually dispersing into isolated individuals
10 millionsimulated individuals
19,409statistical constraints
40combined attributes
−73%statistical reconstruction error vs raking
0personal data required

Our public benchmark compares MaxEnt with generalized raking, the usual method for weighting survey samples. In one documented configuration (40 attributes, 5,626 individuals, constraints up to third order), mean statistical reconstruction error is 73% lower. See the metric and its scope →

THE TEAM BEHIND THE TECHNOLOGY

Built by researchers and entrepreneurs in AI, complex systems and market research.

Meet the team

See how a decision spreads.

Adoption. Opposition. Influence. Polarisation. Cascades.

Up to 10 million simulated individuals.

Simulation · acceptance1.4M individuals
80 %50 %20 %
M0M4M8M12M16M20M24

Simulated trajectories to compare your options, based on the scenario’s assumptions.

+26 ptsacceptance gap at 24 months
1.4Msimulated individuals

Drill down to every voice.

Behind every collective movement, talk to any individual and understand why they react the way they do.

Synthetic individual · #04 812 337
Illustrative portrait of a synthetic individual, Anne, 65, retired architect
Anne, 65Retired architect · Lyon (69)Peri-urban · 2-person household
  • Price sensitivityhigh
  • Institutional trustlow
  • Risk aversionmoderate
  • Influence of close circlestrong
“I am not against the principle. But without an alternative near my home, I will pay twice.”

See how results are explained →

For AI agents

Your agents can question populations too.

Imagine All The People is not only accessible through our platform.

Through MCP, your AI agents and agentic systems can create synthetic populations, question them and consult our expert agents.

They can test a creative idea, explore a hypothesis, examine simulated reactions or use the responses to continue their own work.

Explore Imagine All The People for AI agents

From individuals to society.

INDIVIDUAL
A coherent person. A history. Constraints. A way of reasoning.
POPULATION
Millions of representative, calibrated individuals.
SOCIETY
Individuals who observe one another, influence one another and change together.

Not all simulations build the same world.

An LLM can generate a persona.A panel can measure people.Imagine All The People builds the population your decision will encounter.

DimensionHuman panelAI personas / LLMSynthetic panelCustomer TwinImagine All The People
Starting pointRecruited real peopleProfiles, prompts or personasSynthetic audience or populationKnown customers and proprietary dataA population defined by the problem
Statistical structureSampling and calibrationNot natively controlledDepends on methodologyProprietary behavioral dataExplicit probabilistic constraints
What is representedA surveyed samplePlausible individualsA synthetic audienceObserved customersA coherent target population
ScenariosOften requires a new surveyPossible but variable generationDepends on the solutionDepends on architectureThe same individuals can be exposed to multiple scenarios
Collective dynamicsObserved in the real worldNot nativeUsually limitedMostly individualInteractions, influence, groups and evolution
Primary useMeasure realityExplore and generate hypothesesRapidly question an audiencePersonalize customer relationshipsSimulate the impact of a decision
  • Starting point

    Imagine All The People
    A population defined by the problem
    Human panel
    Recruited real people
    AI personas / LLM
    Profiles, prompts or personas
    Synthetic panel
    Synthetic audience or population
    Customer Twin
    Known customers and proprietary data
  • Statistical structure

    Imagine All The People
    Explicit probabilistic constraints
    Human panel
    Sampling and calibration
    AI personas / LLM
    Not natively controlled
    Synthetic panel
    Depends on methodology
    Customer Twin
    Proprietary behavioral data
  • What is represented

    Imagine All The People
    A coherent target population
    Human panel
    A surveyed sample
    AI personas / LLM
    Plausible individuals
    Synthetic panel
    A synthetic audience
    Customer Twin
    Observed customers
  • Scenarios

    Imagine All The People
    The same individuals can be exposed to multiple scenarios
    Human panel
    Often requires a new survey
    AI personas / LLM
    Possible but variable generation
    Synthetic panel
    Depends on the solution
    Customer Twin
    Depends on architecture
  • Collective dynamics

    Imagine All The People
    Interactions, influence, groups and evolution
    Human panel
    Observed in the real world
    AI personas / LLM
    Not native
    Synthetic panel
    Usually limited
    Customer Twin
    Mostly individual
  • Primary use

    Imagine All The People
    Simulate the impact of a decision
    Human panel
    Measure reality
    AI personas / LLM
    Explore and generate hypotheses
    Synthetic panel
    Rapidly question an audience
    Customer Twin
    Personalize customer relationships
Compare the approaches →

Simulate sensitive decisions without exporting sensitive data.

Keep control of your data, your models and your simulation environment.

  1. 01

    Cloud

    France

    Runs on our infrastructure hosted in France.

    For organizations prioritizing fast deployment and operational simplicity.

  2. 02

    Dedicated infrastructure

    Dedicated environment

    An environment dedicated to your organization.

    Architecture and isolation levels adapted to your security, data and governance requirements.

  3. 03

    Sovereign deployment

    Your country · Your infrastructure · Offline possible

    Deployable in your country, on your own infrastructure, down to an environment with no Internet connection.

    For decisions and data that must remain within a controlled perimeter.

You keep controlData · Models · Infrastructure · Reasoning

What if you tested
your next decision?

State your decision.
See the dynamics it sets in motion.

Explore the product