Rabbit is a research project aimed at developing a system that can understand and mimic human behavior in computer applications. This system, called the Large Action Model (LAM), uses neuro-symbolic programming technology, allowing for the direct simulation of various applications and users interacting with them. LAM rivals state-of-the-art methods in terms of accuracy, explainability, and speed. Its goal is to support the deployment of various AI assistants and operating systems, contributing to the shaping of the next generation of natural language-driven consumer experiences.