Open-source · Non-profit foundation

Simulation AI built by everyone, for everyone.

SimulAI.org is the warm, welcoming home for open simulation AI — tools, models, and reference environments that anyone can study, improve, and share. No paywalls. No proprietary lock-in. Just a community of researchers, students, and tinkerers building the future together.

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MIT & Apache-2.0 licensed
Reproducible by default
Governed in the open

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What we build

A warm, open toolbox for simulation AI

Everything in the SimulAI stack is modular, documented, and remixable. Pick a piece, fork it, send a patch.

policy.py env.yaml replay.bin reproducible

Reference Environments

Curated benchmarks anyone can run.

From cartpole to multi-agent traffic, every environment ships with seeds, configs, and a clean evaluation script. No mystery numbers, no closed datasets — just transparent baselines you can replicate on a laptop.

Browse environments →

verified

Open Model Cards

Models that explain themselves.

Every released model carries a community-reviewed model card: training data, compute, known failure modes, and the working group that maintains it. Decisions stay legible long after the headlines fade.

Read a model card →

governed

Working Groups

Decisions made in the open.

Roadmaps, RFCs, and weekly minutes live in public repositories. Anyone can propose a change, anyone can join a meeting. Maintainers rotate, mentorship is paired, and good ideas win regardless of where they came from.

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Made by people

A few of the folks shipping this month

SimulAI.org is the work of more than two thousand volunteers. Here is a tiny slice — from first-time committers to long-time stewards.

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Quickstart

From clone to first run in under a minute.

The reference toolkit installs from one package, runs on CPU, and ships with a friendly tutorial notebook. Try it now — no account, no telemetry, no card.

# clone the foundation toolkit
$ pip install simulai
$ simulai run cartpole --seed 7

# open the tutorial notebook
$ simulai notebook hello-world.ipynb

Get Involved

Three friendly ways to start contributing

Every pull request, doc fix, and translation matters. Pick a path that feels good and someone will pair with you.

Triage a good-first-issue

We label the friendliest tickets. Read the brief, ask questions in the thread, and ship a small fix with a maintainer cheering you on.

Start triage →

Improve the docs

Type a confusing sentence into our docs editor and propose a clearer one. Documentation is how new people enter the project — you make the door wider.

Start writing →

Bring a benchmark

Have a problem domain you care about? Package it as a SimulAI environment. We provide the template, the review, and the welcome.

Start a benchmark →

Open source is a verb. Join the next commit.

Subscribe to the weekly community digest, drop into the public chat, or jump straight into the contributor handbook. We’ll save you a seat.