Abstract for: How ChatGPT Writes a Complete Vensim Model

The process of creating a simulation model, particularly in system dynamics, is a complex and time-intensive task. It begins with a clear understanding of the problem, followed by the identification of key variables, and culminates in the construction of a Stock and Flow Diagram (SFD). This paper explores how ChatGPT, in conjunction with the DAVID© (Draw A Vensim Initial Draft) tool, can automate the creation of a complete Vensim model, from problem description to a fully functional simulation. While ChatGPT significantly reduces the effort required to create a Vensim model, the process can be further automated using DAVID. This is a cutting-edge tool that integrates with ChatGPT to transform a textual description of a problem into a fully functional Vensim model. It automates the entire process, from variable identification to equation generation, and finally, the creation of an executable Vensim file. DAVID operates in a series of well-defined steps, each designed to automate a specific part of the model creation process. As result, DAVID compiles all the information into a text file with an `.mdl` extension, which is the standard format for Vensim models. ChatGPT o5