rllm shipped an update

The open-source reinforcement learning framework rllm, which trains language agents, shipped an update in July 2026. The project, hosted on GitHub with 5.7k stars, requires Python 3.11+ and supports multiple training backends.

rllm Democratizing Reinforcement Learning for LLMs About rllm rLLM is an open-source framework for training language agents with reinforcement learning. Bring any harness, run it in any sandbox, and switch training backends with one flag — the same agent code drives both eval and training. rLLM requires Python = 3.11. You can install it either directly via pip or build from source. This installs dependencies for running rllm CLI with the tinker backend single-machine, Tinker API . For other backends: rllm is an open-source project written primarily in Python, with 5.7k stars on GitHub. It was last updated in July 2026. uv pip install "rllm @ git+https://github.com/rllm-org/rllm.git" rllm vs. the alternatives All 30 alternatives → /alternatives/rllm