Very few advancements in technology have been so disruptive like Open AI's Chat GPT: thanks to its capability of handling unstructured data, and the ease of customization of its behaviour, we can now bring our applications to a level never seen before. Azure OpenAI exposes all this horsepower to our applications: we can integrate our ASP.NET Core and Blazor solution with GPT models and provide functionalities which were simply unthinkable just a few months ago. During this talk we'll demonstrate some practical examples of how to do that: as a first step, we'll familiarise with the GPT's deployment model and completion API, and then shift our usage model from a simple chat to something closer to a programmable AI model. We'll show how, simply engineering the requests, we can bend its behaviour to accomplish a whole sort of different tasks, like translating content, extracting structured data or execute classifications. As a last step, we'll then show some approaches to further refine the behaviour, fine tuning the model or integrating its pre-trained knowledge with our custom datasets, generating responses and content which are truly unique to our business.