GPT Maker is a specialist tool designed to assist users in the creation of Generative Pre-training Transformers (GPTs). Developed by TeachGPT, this tool leverages the capabilities of GPT Builder and embodies general best practices in the GPT creation process. It requires ChatGPT Plus for operation, adding a layer of functionalities that simplifies and powers the development of GPT models. The tool provides guidance through various components of the GPT creation process - from conceptualization to testing. Wondering how to make a GPT using GPT Builder? GPT Maker not only provides detailed explanations but also inspiration by presenting you with five unique ideas for starters. Going beyond just theoretical knowledge, the tool also acts as a practical guide, reviewing knowledge and showcasing the GPT Builder Guide, thereby demonstrating implementation methods. Following GPT best practices, the GPT Maker gives additional advice on how to effectively format instructions. Tapping into Python's strengths, GPT Maker utilizes an advanced Jupyter environment to narrate the details of the GPT creation process. Further boosting learning, it provides sample tests that increase in complexity and also demonstrates the usage of SQLite databases. The tool's holistic approach to GPT creation makes it a comprehensive help in both learning and building versatile GPT models.