Pre-release

This release is a pre-release and may not be stable for production use.

RLMesh

RLMesh is a Python SDK for model-environment evaluation. It serves Gymnasium-style environments, connects clients over local or remote transports, and adapts values for plain Python, NumPy, Torch, and JAX users.

Pre-1.0 (0.x): the stable API may change in a minor release, with a migration note, so pin a minor range for active projects.

Installation

Install from PyPI:

pip install rlmesh

Install optional adapters as needed:

pip install "rlmesh[numpy]"
pip install "rlmesh[gymnasium]"
pip install "rlmesh[torch]"
pip install "rlmesh[jax]"

Quickstart

Install RLMesh with Gymnasium support and the NumPy client adapter:

pip install "rlmesh[gymnasium,numpy]"

In one process, serve any Gymnasium-compatible environment:

import gymnasium as gym
from rlmesh import EnvServer

env = gym.make("CartPole-v1")
EnvServer(env, "127.0.0.1:5555").serve()

In another process, connect to it as a remote environment:

from rlmesh.numpy import RemoteEnv

env = RemoteEnv("127.0.0.1:5555")
observation, info = env.reset(seed=0)

terminated = truncated = False
while not (terminated or truncated):
    action = env.action_space.sample()
    observation, reward, terminated, truncated, info = env.step(action)

env.close()

Links

License

Licensed under either of Apache License, Version 2.0 or the MIT license, at your option. See LICENSE-APACHE and LICENSE-MIT.

Python wheels also include third-party notices in THIRD_PARTY_NOTICES.md.

Project links

Data verified by PyPI on Sep 14, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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  • Released:
Latest release

1 maintainer

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Avatar for jblayone from gravatar.com jblayone

Credits

Author: ArenaX Labs, Inc.

Maintainer: Josh Blayone

GitHub Statistics

Data verified by PyPI on Sep 14, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT OR Apache-2.0
View SPDX License List

Requires

Python >=3.10

Provides Extra

gym gymnasium hf jax numpy torch

Tags

machine-learning evaluation model-evaluation benchmarking environments runtime

Classifiers

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Release history Release notifications | RSS feed

This release
Pre-release

0.1.0rc10 This release

14 files

Pre-release

0.1.0rc9

14 files

Pre-release

0.1.0rc8

14 files

Pre-release

0.1.0rc7

14 files

Pre-release

0.1.0rc6

14 files

Pre-release

0.1.0rc5

14 files

Pre-release

0.1.0rc4

14 files

Pre-release

0.1.0rc3

14 files

Pre-release

0.1.0rc2

14 files

Pre-release

0.1.0rc1

2 files

Pre-release

0.1.0b3

14 files

Pre-release

0.1.0b2

14 files

Pre-release

0.1.0b1

14 files

Yanked

0.0.5

2 files

Yanked reason: Internal test release; incompatible with the upcoming RLMesh architecture and not supported.

Yanked

0.0.4

2 files

Yanked reason: Internal test release; incompatible with the upcoming RLMesh architecture and not supported.

Yanked

0.0.3

2 files

Yanked reason: Internal test release; incompatible with the upcoming RLMesh architecture and not supported.

Yanked

0.0.2

2 files

Yanked reason: Internal test release; incompatible with the upcoming RLMesh architecture and not supported.

Yanked

0.0.1

2 files

Yanked reason: Internal test release; incompatible with the upcoming RLMesh architecture and not supported.

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