verl

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library 0.7.1 ·python
verified Apr 27, 2026

verl is a reinforcement learning framework for large language models (LLMs) developed by Volcano Engine. It provides end-to-end RL training (e.g., PPO, GRPO) with distributed compute and vLLM integration. Current version 0.7.1, actively developed and released on PyPI.

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