The Era of Enterprise Artificial General Intelligence Has BegunThe advent of Artificial General Intelligence (AGI) is set to revolutionize the way businesses function, with enterprise AGI expected to emerge in late 2023, leading to a complete transformation of job functions, business processes, and legacy enterprise systems. The emergence of AGI is due to an emerging technology called GPT-4, which is the world's first reasoning model and a system capable of reasoning and making decisions across a wide range of situations, much like humans. Although GPT-4 has its flaws, it is a game-changer, and AGI applications can be built today by overcoming its limitations with other tools. The combination of GPT-4 and LangChain will lead to intelligent large language models (LLMs) taking over the decision-making roles previously held by humans. This essay aims to start a conversation with developers, entrepreneurs, investors, and enterprise AI leaders on how to prepare for this once-in-a-lifetime transition, which kicked off on March 14, 2023 with the release of GPT-4.