CSharp-Coder

Learn Azure OpenAI with C# step by step: set up GPT-4o in .NET, stream responses, use function calling and follow best practices. Start building today. If you have been searching for a practical Azure OpenAI C# tutorial, this guide walks you through integrating GPT-4o into a .NET application from scratch. You will learn how to authenticate against your Azure OpenAI resource, send chat completions, stream responses token by token, use function calling, and apply the best practices that separate a demo from a production-grade integration. Every example uses the official Azure.AI.OpenAI SDK and targets .NET 8 or later, so the code runs as-is. Why Use Azure OpenAI with C# Instead of the Public OpenAI API? Both services expose the same GPT-4o model, so why pick Azure? For most enterprise .NET teams, the answer comes down to three things: Data residency and compliance. Your prompts and completions stay inside your Azure subscription and region. Microsoft does not use your data to...