ChatGPT is a large-scale linguistic AI chatbot based on OpenAI's GPT (Generative Pre-trained Transformer) technology. ChatGPT can understand natural language and generate human-like responses by being trained on a huge amount of data. The chatbot can be used in various applications, such as customer support, virtual assistants or as a personal voice assistant. The ability to respond to a variety of questions and continuously learn makes ChatGPT a useful tool in many areas.