alibaba/ROCK

An interface library for RL post training with environments.

A toolkit for developing and comparing reinforcement learning algorithms.

A standard API for single-agent reinforcement learning environments, with popular reference environments and related utilities (formerly Gym)

Scalable RL for Any Agent and Sandbox.

A library of reinforcement learning components and agents

A standard API for multi-agent reinforcement learning environments, with popular reference environments and related utilities

Agentic RL on Any Harness at Scale

FineEnvs — RL Environments 101: building and scaling RL environments in the age of LLMs

C++-based high-performance parallel environment execution engine (vectorized env) for general RL environments.