Stable Baselines3
Stable Baselines3 is a set of reliable implementations of reinforcement learning algorithms in PyTorch. It is the next major version of Stable Baselines.
These algorithms will make it easier for the research community and industry to replicate, refine, and identify new ideas, and will create good baselines to build projects on top of. We expect these tools will be used as a base around which new ideas can be added, and as a tool for comparing a new approach against existing ones. We also hope that the simplicity of these tools will allow beginners to experiment with a more advanced toolset, without being buried in implementation details.
Links
Repository: https://github.com/DLR-RM/stable-baselines3
Blog post: https://araffin.github.io/post/sb3/
Documentation: https://stable-baselines3.readthedocs.io/en/master/
RL Baselines3 Zoo: https://github.com/DLR-RM/rl-baselines3-zoo
SB3 Contrib: https://github.com/Stable-Baselines-Team/stable-baselines3-contrib
Quick example
Most of the library tries to follow a sklearn-like syntax for the Reinforcement Learning algorithms using Gym.
Here is a quick example of how to train and run PPO on a cartpole environment:
import gymnasium
from stable_baselines3 import PPO
env = gymnasium.make("CartPole-v1", render_mode="human")
model = PPO("MlpPolicy", env, verbose=1)
model.learn(total_timesteps=10_000)
vec_env = model.get_env()
obs = vec_env.reset()
for i in range(1000):
action, _states = model.predict(obs, deterministic=True)
obs, reward, done, info = vec_env.step(action)
vec_env.render()
# VecEnv resets automatically
# if done:
# obs = vec_env.reset()
Or just train a model with a one liner if the environment is registered in Gymnasium and if the policy is registered:
from stable_baselines3 import PPO
model = PPO("MlpPolicy", "CartPole-v1").learn(10_000)
5 maintainers
Release files for stable-baselines3 2.3.2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
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| stable_baselines3-2.3.2.tar.gz | 209.8 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| stable_baselines3-2.3.2-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 392.1 kB
Release files / stable_baselines3-2.3.2.tar.gz
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| Size | 182.3 kB |
| Tags | Python 3 |
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