vLLM is an open-source inference framework designed for fast Large Language Model (LLM) inference and serving, offering up to 24x higher throughput than Hugging Face Transformers without requiring any model architecture changes. It provides efficient memory management, continuous batching, optimized kernel implementations, and support for various model architectures. In contrast, TGI is a toolkit developed by Hugging Face for deploying and serving LLMs, focusing on providing a production-ready solution for text generation tasks with built-in telemetry and ease of use. While both offer performance improvements over baseline implementations, vLLM generally provides a better balance of speed, support for distributed inference, and ease of installation.