Video narration
You type: “Plan a quick weekend trip.” ChatGPT replies with an itinerary, packing tips, and a budget. So how does it do that? At a high level, ChatGPT is a large language model—an AI trained on huge amounts of text from books, websites, and conversations. During training, it learns patterns in language: which words tend to follow others, and how meaning shifts with context. When you send a prompt, it doesn’t “look up” a single right answer. Instead, it reads your words, builds a sense of what you’re asking, then predicts the next word, then the next—choosing a sequence that best fits the pattern and the context. That’s why clear prompts help, and why it can sometimes sound confident even when it’s wrong. In short: your text goes in, patterns and context guide predictions, and a response comes out—one word at a time.