How does a GPT chatbot learn and where does it get its knowledge?

It is trained on huge data sets that include books, articles, forums, scientific studies, and more that were available at the time of its training. This makes it capable of GPT Chatbot generating answers to a variety of questions. However, its data is not automatically updated: training requires processing new data, which can take time. So if it encounters new events that occurred after its training was completed, it may not have up-to-date information.