No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
gymnasium has 11.6M monthly downloads and 12K GitHub stars. Version 1.3.0 supports Python 3.10+, first published in 2021.
It is actively maintained under a permissive license, last released in Apr 2026.
It is built on top of cloudpickle, farama-notifications and numpy. It is used by 842 tracked packages, including browsergym-core, stable-baselines3 and shimmy.
GitHub topics include api, gym and reinforcement-learning.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
87
Adoption
60
Community
80
Provenance
0
How the maintenance status was determined
Last commit
2 days ago
Monthly downloads
11,648,808
•
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
11,648,808
Stars
12,113
Stars per 1k downloads
1.04
•
Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
302,752
Month daily avg
388,294
Momentum
-22.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
•
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
MIT License
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
76 days ago
Total releases
20
Releases/year
4.3
Rapid
Last release within 365 days and > 12 releases/year
•
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
493
Monthly downloads
11,648,808
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
77
Issue Burden
5.6
per 1k stars
Discussions
1.1
per 1k stars
Fork Ratio
35.9%
contrib / forks
Stale Release
73d
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
196.9K
Windows
6.2K
macOS
3.0K
Python Versions
3.13
46.4%
93.8K
3.12
36.6%
74.0K
3.11
9.1%
18.4K
3.10
6.4%
12.9K
3.14
1.6%
3.2K
Top Countries
1.
US
130.6K
US
2.
SG
50.1K
SG
3.
JP
4.0K
JP
4.
HK
3.6K
HK
5.
FR
3.4K
FR
6.
CN
2.0K
CN
7.
IN
1.7K
IN
8.
SE
1.7K
SE
9.
DE
1.4K
DE
10.
ID
885
ID
Dependencies
4
- cloudpickle >=1.2.0
- farama-notifications >=0.0.1
- numpy >=1.21.0
- typing-extensions >=4.3.0
44 optional dependencies
- ale-py[atari]
- ale-py[all]
- array-api-compat[array-api]
- array-api-compat[torch]
- array-api-compat[all]
- array-api-compat[jax]
- array-api-extra[testing]
- box2d[box2d]
- box2d-py[all]
- dill[testing]
- flax[jax]
- flax[all]
- imageio[all]
- imageio[mujoco]
- jax[all]
- jax[jax]
- jaxlib[all]
- jaxlib[jax]
- matplotlib[all]
- matplotlib[other]
- moviepy[all]
- moviepy[other]
- mujoco[mujoco]
- mujoco[all]
- numpy[jax]
- numpy[torch]
- numpy[all]
- numpy[array-api]
- opencv-python[other]
- opencv-python[all]
- packaging[array-api]
- packaging[mujoco]
- packaging[all]
- pygame-ce[box2d]
- pygame-ce[classic-control]
- pygame-ce[toy-text]
- pygame-ce[all]
- pytest[testing]
- scipy[testing]
- seaborn[other]
- swig[box2d]
- swig[all]
- torch[torch]
- torch[all]
Used By
842
- browsergym-core
- stable-baselines3
- shimmy
- pettingzoo
- lerobot
- tianshou
- kaggle-environments
- skrl
- gym-aloha
- reward-kit
- dopamine-rl
- gymnax
- minigrid
- amesa-core-dev
- python-motion-planning
- supersuit
- gymnasium-robotics
- isaaclab
- envpool
- minari
- mani-skill
- metaworld
- hf-libero
- gym-pusht
- amesa-core
- ogbench
- libwebarena
- tf-agents-nightly
- libvisualwebarena
- vizdoom
- mo-gymnasium
- datenwissenschaften
- stable-retro-turbo
- pachinko-pybind
- weblinx-browsergym
- agilerl
- highway-env
- craftground
- nes-py
- poke-env
- libero
- gym-super-mario-bros
- mettagrid
- gym-hil
- stable-worldmodel
- rl-games
- jumanji
- evotorch
- composabl-core-dev
- essence-wars
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
MIT License
First Release
November 5, 2021
Last Release
2 months ago
Last Commit
2 days ago
Latest Version
1.3.0
Total Releases
20
Contributors
493
Open PRs
12
Archived
No
Python Versions
3
3.10
3.11
3.12
3.13
Wheels
py3
Keywords
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh