Top RLHF GitHub Repositories & Tools (2026)

Unified Efficient Fine-Tuning of 100+ LLMs & VLMs (ACL 2024)

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

An Asynchronous Reinforcement Learning Engine for Omni-Modal Post-Training at Scale

Train Large Language Models on MLX.

Auditable human-feedback annotation, review, provenance, and frozen training-data export.