Skrl AI Agent
Modular Reinforcement Learning (RL) library (implemented in PyTorch, JAX, and NVIDIA Warp) with support for Gymnasium/Gym, NVIDIA Isaac Lab, MuJoCo Playground and other environments
Skrl is an open-source ai agent by Toni-SM, written mainly in Python, with 1,101 GitHub stars and the MIT license. Its code was last updated Nov 1, 2026.
<img src="https://img.shields.io/badge/%F0%9F%A4%97%20models-hugging%20face-F8D521">
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Documentation: <strong>https://skrl.readthedocs.io</strong>
Description: skrl is an open-source modular library for Reinforcement Learning written in Python
(implemented in PyTorch, JAX and NVIDIA Warp)
and designed with a focus on modularity, readability, simplicity, and transparency of algorithm implementation.
In addition to supporting
OpenAI Gym,
Farama Gymnasium and PettingZoo,
ManiSkill,
among other environment interfaces, it allows loading and configuring
NVIDIA Isaac Lab and
MuJoCo Playground
environments, enabling agents' simultaneous training by scopes (subsets of environments among all available environments),
which may or may not share resources, in the same run.
Refer to the documentation for details and examples: https://skrl.readthedocs.io
<br><br>Note: This project is under active continuous development. Please make sure you always have the latest version. Visit the develop branch or its documentation to access the latest updates to be released.
Citing this library
To cite this library in publications, please use the following reference:
@article{serrano2023skrl,
author = {Antonio Serrano-Muñoz and Dimitrios Chrysostomou and Simon Bøgh and Nestor Arana-Arexolaleiba},
title = {skrl: Modular and Flexible Library for Reinforcement Learning},
journal = {Journal of Machine Learning Research},
year = {2023},
volume = {24},
number = {254},
pages = {1--9},
url = {http://jmlr.org/papers/v24/23-0112.html}
}
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