Open-Domain Dialogue Systems are computer programs designed to engage in conversations on a wide range of topics. Unlike specialized systems that focus on specific subjects, these systems can discuss anything from current events to personal interests. They use advanced techniques in natural language processing to understand and generate human-like responses. These systems are often powered by machine learning models, such as those developed by OpenAI or Google. They aim to provide users with informative and engaging interactions, making them useful for applications like customer support, entertainment, and education. Their versatility allows them to adapt to various conversational contexts.