From the linked article:
"TensorRT-LLM consists of the TensorRT deep learning compiler and includes optimized kernels, pre- and post-processing steps, and multi-GPU/multi-node communication primitives for groundbreaking performance on NVIDIA GPUs. It enables developers to experiment with new LLMs, offering peak performance and quick customization capabilities, without requiring deep knowledge of C++ or NVIDIA CUDA.
TensorRT-LLM improves ease of use and extensibility through an open-source modular Python API for defining, optimizing, and executing new architectures and enhancements as LLMs evolve, and can be customized easily."