Reinforcement Learning GitHub Repositories (2026) · Open Source Tools

A curated list of fruit fly connectome projects: MaleCNS, FlyWire, brain simulations, embodied models, games, and research tools.

A native Mac App for LLM fine-tuning on Apple Silicon — fully on-device, fully open source.

Native C++ NES emulator with Python/Gymnasium APIs, vector execution, and cross-platform packaging.

Distributed Reinforcement Learning accelerated by Lightning Fabric

PyTorch version of Stable Baselines, reliable implementations of reinforcement learning algorithms.

SANA: Efficient High-Resolution Image Synthesis with Linear Diffusion Transformer

The RL Bridge for LLM-based Agent Applications. Made Simple & Flexible.

RLinf: Reinforcement Learning Infrastructure for Embodied and Agentic AI

Isaac Lab API, powered by MuJoCo-Warp, for RL and robotics research

Code for Watch Your Step: Anticipated Perception for Humanoid Locomotion, training a humanoid with a foothold prediction model.

[NeurIPS 2025 Spotlight] Reasoning Environments for Reinforcement Learning with Verifiable Rewards

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

Multimodal RL training framework for diffusion & omni models

A fork of gym-retro with additional games, emulators and supported platforms

The complete post-training stack for LLMs, plus RL for any problem. SFT, DPO and multi-turn agentic RL, with evolutionary hyperparameter optimization built in.

Python library for Reinforcement Learning.

A unified framework for easy fine-tuning in Flow-Matching models

Keras based framework for neuro-symbolic LM systems

MuJoco Simulation on WebAssembly with Neural networks

EvoRL is a fully GPU-accelerated framework for Evolutionary Reinforcement Learning, implemented with JAX. It supports Reinforcement Learning (RL), Evolutionary Computation (EC), Evolution-guided Reinforcement Learning (ERL), AutoRL, and seamless integration with GPU-optimized simulation environments.