Ross ROSS = Recommend OSS · open-source software intelligence for agents

openai/mujoco-py

MuJoCo is a physics engine for detailed, efficient rigid body simulations with contacts. mujoco-py allows using MuJoCo from Python 3. observed · 2026-08-28

github.com/openai/mujoco-py · Cython · NOASSERTION (other) · archived observed · 2026-08-28

Health v2 · maintenance only

10/100

  • Activity 0
  • Release rhythm 8
  • Longevity 100

Flags: archived no_license

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 3783
  • days_rel: n/a
  • days_push: 997
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

3143 stars · 823 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

mujoco-py provides Cython-based Python 3 bindings for the MuJoCo physics engine, enabling rigid body simulation with contacts from Python. It is now deprecated and users should switch to the official DeepMind MuJoCo Python bindings.

Use cases

  • simulate rigid body physics with contacts from python
  • run mujoco environments for reinforcement learning research
  • load and step mujoco xml models in python
  • reproduce legacy gym robotics environments
  • simulate humanoid and other articulated models

When to choose

  • maintaining legacy code that depends on mujoco-py or mujoco 2.1.0
  • reproducing older reinforcement learning benchmarks that require mujoco-py

When to avoid

  • starting a new project - use the official DeepMind MuJoCo Python bindings instead
  • you need MuJoCo versions after 2.1.0
  • you need Windows support
  • you want actively maintained software

Facets

library · maturity abandoned

simulation machine-learning sdk robotics reinforcement-learning simulation machine-learning python physics-engine mujoco cython-bindings deprecated rigid-body-dynamics linux macos

2 sources

Member repositories

RepositoryRoleHealth v2
openai/mujoco-pymain10

For agents

markdown · JSON · MCP: product_card(name="openai/mujoco-py")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem