Society,
in silico.
We simulate the economy. Household by household. Tax by tax. Policy by policy. Open source infrastructure. APIs for the rest.
Platform
Five APIs. One simulation.
Rules
Calculate taxes and benefits for any household. Every formula traced to statute.
cosilico.calculate(household)Data
Synthetic populations calibrated to reality. Predict attributes you don't observe.
cosilico.predict(partial_household)Scenarios
Run policy reforms at population scale. Distributional impacts in seconds.
cosilico.simulate(reform, population)Full profile
Partial household in, complete financial profile out. Predictions plus calculations combined.
cosilico.profile(partial_household)Law archive
Structured US statute text with historical versions. All 54 titles of the US Code.
cosilico.statute("26/32")Use cases
Who queries the simulation?
Financial services
“How will rate changes affect default risk across our portfolio?”
Government agencies
“What's the 10-year cost of this bill?”
Asset managers
“Which sectors win under each candidate's tax plan?”
AI agents
“Calculate this household's benefits eligibility.”
Retailers
“How does SNAP expansion affect grocery spend by region?”
Researchers
“Model the distributional impact of UBI.”
Foundation
Powered by Rules Foundation.
Built on open infrastructure: machine-readable encodings of statutes, regulations, and policy rules. Cosilico provides commercial APIs on top.
Learn about Rules FoundationWhy
The coordination problem.
Tax policy affects every household, every business, every investment decision. Yet the models used to evaluate it are closed, aggregate, and unvalidated. Legislators vote on trillion-dollar bills scored by black boxes. Financial firms price risk with models they can't inspect. Researchers publish with data they can't share.
The result is society-wide miscoordination. Not because people disagree on values — but because they can't agree on facts. Every institution builds its own partial model, none of them interoperate, and the gaps between them are where bad policy hides.
Cosilico is the shared substrate. A simulation everyone can query, so decisions are grounded in the same reality.