Coming shortly · private alpha
The robotics simulator that runs everywhere.
A robotics simulation platform with a portable dynamics kernel — the same physics in a browser, on a CPU, and on a GPU, with the divergence measured and published.
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“Train a robot policy in a browser tab — no install, no NVIDIA card.”
One kernel, three targets
MDK — the MOS Dynamics Kernel
One Rust kernel: Featherstone articulated-body dynamics, canonical PD motors, penalty ground contact. Compiled to browser WASM, native CPU, and a wgpu compute shader. Native and WASM are built from the same sources, so they agree by construction.
- BrowserWASM, ~426 KB
- CPUnative
- GPUwgpu compute
Verified, not asserted
The error bars are printed.
Conformance against a MuJoCo oracle, policy goldens checked to 1e-5, and CPU-to-GPU divergence published per adapter.
- 111tests, kernel + verify
- 1e-5policy golden tolerance
- 426 KBbrowser WASM kernel
- 3targets, one kernel
“Where the physics approximates, the error bars are printed rather than argued away.”
What you get
Browser simulator
Babylon.js rendering with the WASM kernel underneath, stepping at 240 Hz.
In-tab training
Multi-environment PPO on your own WebGPU. Skills: walking and recovery.
Research-grade locomotion
DCM, CPG, Raibert, IK and PD balance. Robots: biped-v1 (10 DOF), humanoid-v1 (24 DOF).
Where MOS is today
Alpha, and proprietary. MOS has never been run on physical hardware — the hardware abstraction, real-time and kernel layers are groundwork, not shipped capability — so there is no sim-to-real transfer claim here, only the preparation for one. We compare on portability, not on throughput.
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We'll email you when MOS opens up.
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Built by 1 Martian Way, alongside Magy and Martian OS.