For language models like ChatGPT, "training a model" refers to the process of helping the AI system teach itself to perform specific tasks by exposing it to vast amounts of data. This process allows the model to learn patterns, relationships, and structures within the data, enabling it to generate new content that resembles the training data.
It's important to note that the model does not simply memorize and reproduce the training data; instead, it learns to create novel content based on the patterns it has learned.