Stanford NLP is a natural language processing group at Stanford University that focuses on developing algorithms and tools to help computers understand human language. Their work includes creating software for tasks like sentiment analysis, part-of-speech tagging, and named entity recognition, which are essential for various applications in artificial intelligence. The group is known for its open-source software, including the Stanford CoreNLP toolkit, which provides a suite of natural language analysis tools. Researchers and developers worldwide use these resources to enhance their projects, making Stanford NLP a significant contributor to the field of computational linguistics.