Which library is commonly associated with providing state-of-the-art pre-trained models and pipelines for natural language processing tasks?

The library commonly associated with providing state-of-the-art pre-trained models and pipelines for natural language processing tasks is Hugging Face's Transformers. This library offers a wide range of tools and models that can be used for various NLP applications such as text classification, translation, summarization, and more. It supports many popular models like BERT, GPT, and T5, making it a go-to resource for researchers and developers working in the field of NLP. Additionally, the library is user-friendly and well-documented, enabling users to quickly implement advanced NLP techniques without needing extensive background knowledge in deep learning or natural language processing.