Gradio is an open-source Python library designed to simplify the process of creating user interfaces for machine learning models. It allows developers to build interactive applications quickly, enabling users to input data, make predictions, and visualize results with minimal coding. Gradio is particularly useful for showcasing models without requiring extensive front-end development skills. With just a few lines of code, users can create customizable interfaces for various tasks, such as text summarization or image classification. This accessibility makes Gradio a popular choice for both researchers and practitioners looking to demonstrate their AI models effectively.