GPT Builder Assistant is a type of GPT designed to facilitate the process of creating a Generalized Pretraining Transformer (ChatGPT). The tool is engineered to streamline the process of making a ChatGPT by systematically guiding users in generating the various components necessary for the successful deployment of a ChatGPT. The GPT Builder Assistant inherently fosters a user-friendly environment that simplifies the often complex processes involved in creating a ChatGPT. Using the GPT Builder Assistant, users are prompted to refine a GPT's context, set behavioral constraints, and personalize GPT responses. Through refining a GPT's context, users can tailor a specific contextual background that informs the outputs given by the GPT. By setting behavioural constraints, users can control and limit the GPT's AI responses to align with a specified set of rules or guidelines. Personalizing GPT responses allows users to customize the outputs to match a unique style or tone of communication. Ultimately, the GPT Builder Assistant brings together these features in an intuitive way to enable users of varying technical backgrounds to effectively assemble a ChatGPT. Given the user-friendly approach adopted by the GPT Builder Assistant, users not only create but also understand the intricate processes involved in building a GPT.