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Adapters

llenvs wraps 18+ environment libraries through a unified adapter interface. Each adapter translates a third-party library's API into llenvs Environment protocol.

  • ReasoningGym


    Procedural reasoning tasks with automatic answer extraction.

    ReasoningGym

  • HuggingFace


    AIME, GSM8K, and other HF datasets as evaluation environments.

    HuggingFace

  • GEM


    Multi-turn games and benchmarks with tool support.

    GEM

  • Gymnasium


    Classic RL environments — Gym4Real, MarsExplorer, and custom.

    Gymnasium

  • WebShop


    E-commerce product search and purchase environment.

    WebShop

  • AlfWorld


    Text-based household task environments.

    AlfWorld

  • Jericho


    50+ classic interactive fiction text adventure games.

    Jericho

  • AgentGym


    15 multi-turn agent environments via client-server architecture.

    AgentGym

  • LMRL-Gym


    Multi-turn text environments — Wordle, Chess, Maze, and more.

    LMRL-Gym

  • Aviary


    FutureHouse tool-calling environments for scientific tasks.

    Aviary

  • Verifiers


    Single-turn and tool environments with rubric scoring.

    Verifiers

  • OpenEnv


    Session-based server environments with MCP tool support.

    OpenEnv

  • SciAgentGYM


    Multi-step scientific tool-use across 6 domains.

    SciAgentGYM

  • InterCode


    Interactive code generation in Bash, SQL, Python, CTF.

    InterCode

  • MARE


    Meta Agents Research Environments (Gaia2 benchmark).

    MARE

  • Tau


    Multi-turn customer service benchmark — airline, retail, telecom, banking knowledge.

    Tau

  • Craftax


    JAX-based open-ended survival benchmark with text, symbolic, and pixel modes.

    Craftax

  • MolmoSpaces


    Robot manipulation & navigation with multi-view cameras and tool-based control.

    MolmoSpaces

  • Harbor


    Containerized terminal tasks — Terminal-Bench, aider-polyglot, and more.

    Harbor