KTransformers is a Python-based framework designed for optimizing large language model (LLM) inference with an easy-to-use interface and extensibility, allowing users to inject optimized modules effortlessly. It supports various features such as multi-GPU setups, advanced quantization techniques, and integrates with existing APIs for seamless deployment. The framework aims to enhance performance for local deployments, particularly in resource-constrained environments, while fostering community contributions and ongoing development.