Neena Sathi from the Applied AI Institute explains how to update AI large language models (LLMs), which usually understand and create text by learning from a massive amount of online data. These LLMs can be out-of-date or lack specific details. To solve this, she introduces a technique that mixes in fresh, precise information when the AI generates a response. This method makes the AI's answers more accurate and relevant to today's information or to particular business needs. It's like giving the AI a quick update with the latest news or company reports to help it provide better, tailored answers.