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1. vllm-project/vllm vllm-project/vllm Public

   A high-throughput and memory-efficient inference and serving engine for LLMs

   Python 86.5k 19.5k

2. NVIDIA/Megatron-LM NVIDIA/Megatron-LM Public

   Ongoing research training transformer models at scale

   Python 17.1k 4.2k

3. modelscope/ms-swift modelscope/ms-swift Public

   Use PEFT or Full-parameter to CPT/SFT/DPO/GRPO 600+ LLMs (Qwen3.6, DeepSeek-V4, GLM-5.1, InternLM3, Llama4, ...) and 300+ MLLMs (Qwen3-VL, Qwen3-Omni, InternVL3.5, Ovis2.5, GLM4.5v, Gemma4, Llava, …

   Python 14.8k 1.5k

4. vllm-project/vime vllm-project/vime Public

   An LLM post-training framework with vLLM for RL Scaling

   Python 370 59

5. NVIDIA-NeMo/RL NVIDIA-NeMo/RL Public

   Scalable toolkit for efficient model reinforcement

   Python 1.8k 476

6. NVIDIA-NeMo/Nemotron NVIDIA-NeMo/Nemotron Public

   Developer Asset Hub for NVIDIA Nemotron — A one-stop resource for training recipes, usage cookbooks, datasets, and full end-to-end reference examples to build with Nemotron models

   Jupyter Notebook 1.7k 345