MuJoCo 4 released: Studio & Filament renderer, Deformables, Speculative Contacts
bousmalis · x · 2026-11-08
Google DeepMind has released MuJoCo 4 alongside MuJoCo Playground 1.0. Three years after MuJoCo 3.0 introduced MJX, SDFs and constraint islands (39 releases since), MuJoCo now sees 3.6M PyPI downloads/month, 16K+ GitHub stars, and 2K commits from 45+ external contributors in the past year. The team also collaborates with NVIDIA on MuJoCo Warp and on Newton under the Linux Foundation with NVIDIA, Disney and TRI.
Highlights of 4.0:
- MuJoCo Studio and the Filament renderer for a new visualization toolchain
- Major Deformables improvements
- Speculative Contacts as a new physics feature
- Python package split into a minimal mujoco-core plus optional components
- mujoco.org is now an interactive in-browser 4.0 showcase; any model can be opened at live.mujoco.org
Upgrade: pip uninstall -y mujoco && pip install -U mujoco.
Related event: DeepMind Releases MuJoCo 4 with Deformable Bodies and Studio(2 posts)→
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