NVIDIA-NeMo

    NVIDIA-NeMo/Gym

    #585 this week

    Evaluate and improve models and agents using environments

    llm
    agents
    benchmarks
    environments
    evaluation
    gym
    Python
    Apache-2.0
    1.2K stars
    392 forks
    1.2K GitHub watchers
    Updated Oct 14, 2026
    View on GitHub

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    Where it stands

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

    Ranks #28 among LLM repositories tracked this week, and #28 over the last 30 days; #585 of 3,103 repositories GStars tracks this week (top 19%).

    4 releases in the last 90 days, the latest 1 day ago, with 186 contributors on GitHub.

    Use Cases & Benefits

    • Provides a library to build and evaluate reinforcement learning environments tailored for large language models.
    • Offers scalable infrastructure and reusable patterns to accelerate environment development and seamless integration with RL training frameworks.
    • Use for developing multi-step, multi-turn RL training environments involving user modeling scenarios for LLMs.
    • Use for benchmarking and improving instruction-following capabilities in language models with curated datasets and resource servers.
    • Use for creating custom RL environments that integrate external tools and verification logic without deep RL loop expertise.

    Should you depend on it?

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

    License

    Apache 2.0

    Permissive: commercial use, modification and redistribution are allowed with attribution; includes an explicit patent grant from contributors.

    Community files

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

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    NeMo Gym is a library for building reinforcement learning (RL) training environments for large language models (LLMs). It provides infrastructure to develop environments, scale rollout collection, and integrate seamlessly with your preferred training framework.

    NeMo Gym is a component of the NVIDIA NeMo Framework, NVIDIA’s GPU-accelerated platform for building and training generative AI models.

    Excerpt from the NVIDIA-NeMo/Gym README on GitHub (Apache-2.0 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

    392+164

    Open issues

    1.2K+668

    Compared with peers in LLM

    Fastest-growing repositories GStars tracks in this cohort for the week of Oct 18, by 7-day star growth

    NVIDIA-NeMo/Gym compared with LLM repositories by stars, 7-day star growth, health score and last release
    RepositoryStars+7dHealthLast release
    DietrichGebert/ponytail175.5K+9.9K758 days ago
    xerj-org/xerj15.3K+7.8K75today
    affaan-m/ECC288.1K+6.4K7523 days ago
    tashfeenahmed/freellmapi41.0K+4.1K751 day ago
    JuliusBrussee/caveman114.8K+2.2K751 day ago
    NVIDIA-NeMo/Gym1.2K+0751 day ago
    Category median114.8K+6.4K75—

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