An LLM is a type of ML model that performs various natural language processing tasks—such as recognizing, summarizing, translating, and generating text; answering questions; and carrying on a conversation. An LLM is developed by deep learning techniques, and training its artificial neural networks requires a massive amount of data. Deep learning is a type of ML, and ML is a subfield of AI. Since ChatGPT outputs new content as a response to a user’s inquiry, it is considered a tool in the realm of generative AI.