AI21 Labs' Jurassic-X is a Modular Retrieval-Augmented Generation (MRKL) system that combines multiple models to perform complex tasks, such as answering questions about current events or performing calculations. It can access external databases and APIs for real-time information, making it more versatile than traditional language models like GPT-3. Jurassic-X is designed to be transparent by displaying which expert answered which part of the question and presenting intermediate steps taken. This system has various applications in industries such as finance, healthcare, retail, and customer support.