Unsloth

Unsloth is an open-source tool that enables developers to finetune various large language models (such as Llama 4, DeepSeek-R1, Gemma 3, and others) more efficiently. It offers free notebooks, reduced memory usage through dynamic quantization, and faster training performance, making it easier to deploy optimized models to platforms like GGUF, Ollama, vLLM, and Hugging Face.