openenv

    openenv/OpenEnv

    An interface library for RL post training with environments.

    machine-learning
    Python
    BSD-3-Clause
    2.8K stars
    498 forks
    2.8K GitHub watchers
    Updated Oct 26, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    5 releases in the last 90 days, the latest 4 days ago, with 111 contributors on GitHub.

    Peaked at #79 in the weekly ranking the week of Mar 22, its best in the past year.

    Use Cases & Benefits

    • Provides a framework with Gymnasium-style APIs for creating, deploying, and interacting with isolated execution environments for agentic reinforcement learning.
    • Enables secure, containerized, and type-safe environment deployment and interaction over standard protocols like WebSocket and HTTP.
    • Use for developing and testing custom RL environments with isolated Docker containers and simple client-server APIs.
    • Use for integrating RL training workflows with agentic environments via async or sync clients supporting real-time interaction.
    • Use for deploying and sharing RL environments on platforms like Hugging Face Spaces with automated CLI tools.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    BSD 3-Clause

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

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    From the README

    An e2e framework for creating, deploying and using isolated execution environments for agentic RL training, built using Gymnasium style simple APIs.

    🚀 Featured Example: Train LLMs to play BlackJack using torchforge (PyTorch's agentic RL framework): examples/grpo_blackjack/

    🔥 Zero to Hero Tutorial: End to end tutorial from our GPU Mode lecture and other hackathons.

    Install an environment client (e.g., Echo):

    Synchronous usage is also supported via the .sync() wrapper:

    For a detailed quick start, check out the docs page.

    Excerpt from the openenv/OpenEnv README on GitHub (BSD-3-Clause license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    498+80

    Open issues

    95+1

    Compared with peers in Machine Learning

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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    openenv/OpenEnv2.8K—654 days ago
    Category median21.6K—63—

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