Farama-Foundation/Gymnasium

Doc Site Gifs Showing With Real Policies for Classic Control, Box2D and MuJoCo

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#1,610 opened on Jul 2, 2026

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help wanted

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Description

It'd be really nice if people could submit PRs with gifs showing reasonable behaviors rolling out real policies (just something basic from SB3 or something) for the Classic Control, Box2D and MuJoCo environments. Right now they just show random behaviors. Separate PRs per environment or set of environment probably makes the most sense.

The toy text environments we should do this before, but at time of writing a designer is working on overhauling the pixel art for them, so that one should probably wait.

Contributor guide

Research direction
Train a policy using Stable Baselines3 for the environment and record a GIF using the gymnasium.wrappers.RecordVideo wrapper. Then submit a PR with the GIF.
Tech stack
python
Domain
machine learning
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75