PlanGPT is a specialized GPT designed to cater to the specific needs of professional urban planning. Built upon the foundation of ChatGPT it excels in the analysis interpretation and provision of feedback on a variety of urban planning documents and strategies. It applies the fundamental principles of urban planning in a formal and professional manner. PlanGPT also integrates artificial intelligence in a novel way within the realm of urban planning. This includes tasks such as evaluating urban development plans for enhancements discerning sentiments from community feedback on zoning proposals and deliberating on sustainable transportation options within the context of urban planning. The GPT not only aids in the planning process itself but also offers valuable insights into community feedback potential improvements and the synthesis of effective planning strategies. This empowers users to effectively harness AI to streamline and enhance comprehension in urban planning matters. PlanGPT requires a ChatGPT Plus subscription. It is a remarkable tool that ventures into the domain of urban planning with the aim of enhancing user experience through innovative AI methodologies.