The goal of NER, or named entity recognition, is to identify and categorize entities in unstructured data, such as text or speech. In machine learning, Hugging Face has become a leading hub for pre-trained models and datasets, especially in Natural Language Processing (NLP) tasks like NER. Galileo is a tool that provides data quality analysis for Hugging Face's NLP pipelines, helping to identify mistakes and problems with the quality of training data. To use Galileo, users need to install the necessary libraries and create a new project and run. The tool provides an easy-to-use interface for uploading datasets, tokenizing text, aligning labels, and fine-tuning models like RoBERTa. After training, Galileo logs the current epoch and splits, providing insights into model performance and data quality. Users can view high-level summary statistics, detailed visualizations, and even specific data points to analyze their dataset's quality. By using Galileo, users can improve the accuracy of their NLP models and gain a better understanding of their training data.