Synthetic RL envs

Synthetic worlds
for capable agents.

High-fidelity RL environments that simulate real business contexts — social platforms, job boards, markets and research — grounded in private company data.

Explore the worlds
The premise

Agents learn what their environments teach them. We build environments that behave like the real thing — simulations of real businesses, grounded in private company data.

Grounded

World models are fit to private company data, so simulated people and markets act the way real ones do.

High-fidelity

Behavioral, auction and market dynamics with real incentives — not scripted bots or static datasets.

Controllable

Change the population, the incentives or the market, then re-run the world and train again.

World models04

Worlds we
simulate.

Each world is a set of calibrated models of the people and systems inside a business, composed into an environment your agents can act in.

Env 01 — Social
01

Social platforms

Behavioral and auction models of X, Meta, LinkedIn and Telegram: how people post, follow and engage, and how ad inventory gets priced.

  • X
  • Meta
  • LinkedIn
  • Telegram
Env 02 — Hiring Recruiters Candidates
02

Job boards

Behavioral models of recruiters and candidates: who searches, who reaches out, who replies, and who ends up hired.

  • Recruiters
  • Candidates
Env 03 — Markets
03

Quantitative trading

Market models with simulated arbitrageurs, retail flow and competing strategies, so trading agents face realistic counterparties.

  • Arbitrage
  • Retail flow
  • Competitors
Env 04 — Research
04

Autoresearch

Environments for agents that do research: propose ideas, run experiments, read the results and decide what to try next.

  • Hypotheses
  • Experiments
  • Evaluation
Approach

From private data
to a world you can train in.

  1. 01

    Ground

    We fit behavioral, auction and market models to a company’s private data, so every simulated actor responds the way its real counterpart would.

  2. 02

    Simulate

    Users, recruiters, candidates, traders and competitors interact inside one world, at the scale and speed that training needs.

  3. 03

    Train

    Your agents act, collect rewards and get evaluated against realistic counterparties before they touch production.

fountainheads Synthetic RL envs train in
worlds
you control.
Request access

Bring a business.
We’ll build the world.

We work with teams training and evaluating agents that have to deal with real people and real markets. Tell us which context you want simulated and what data sits behind it.