How ChatGPT Could Embed a 'Watermark' in the Text It Generates - The New York Times

When artificial intelligence software like ChatGPT writes, it considers many options for each word, taking into account the response it has written so far and the question being asked. It assigns a score to each option on the list, which quantifies how likely the word is to come next, based on the vast amount of human-written text it has analyzed. ChatGPT, which is built on what is known as a large language model, then chooses a word with a high score, and moves on to the next one. The model's output is often so sophisticated that it can seem like the chatbot understands what it is saying -- but it does not. Every choice it makes is determined by complex math and huge amounts of data.