CSharp-Coder

Learn how to fine-tune AI models and call them from C# with OpenAI and Azure OpenAI. Step-by-step code examples inside — start building today. Why Fine-Tuning AI Models Matters for C# Developers Fine-tuning AI models is one of the most searched-for skills in modern software development — and for good reason. While base models like GPT-4o and Claude are impressively general, they don't know your company's tone of voice, your domain-specific terminology, or your internal classification rules. Fine-tuning solves this: you take a pre-trained model and continue training it on your own examples, producing a custom model that responds exactly the way your business needs. In this guide, you'll learn how fine-tuning works, when to use it (and when not to), how to prepare training data, how to run a fine-tuning job, and — most importantly for us — how to call your fine-tuned model from a C# application using .NET 8/9. Here's the WHY before the HOW: a fine-tuned smaller mode...