OpenRLHF/OpenRLHF

Democratizing Reinforcement Learning for LLMs

A repo for distributed training of language models with Reinforcement Learning via Human Feedback (RLHF)

EasyR1: An Efficient, Scalable, Multi-Modality RL Training Framework based on veRL

An Efficient and User-Friendly Scaling Library for Reinforcement Learning with Large Language Models

Agent Reinforcement Trainer: train multi-step agents for real-world tasks using GRPO. Give your agents on-the-job training. Reinforcement learning for Qwen3.6, GPT-OSS, Llama, and more!

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

slime is an LLM post-training framework for RL Scaling.

verl/HybridFlow: A Flexible and Efficient RL Post-Training Framework

The absolute trainer to light up AI agents.