Large Language models take everything from the internet to generate their own answers to questions, poems, stories, etc. Predictive AI is artificial intelligence that "predicts" or guesses what the answer is based off of what information is currently on the internet. Generative AI is artificial intelligence that takes information from the internet and generates it's own, unique answer, based off of what it knows. It can create poems, stories, lessons, and more based on your specific parameters.
