https://remigiuszzalewski.com/blog Practical C#, .NET, ASP.NET Core and EF Core tutorials with code examples and video walkthroughs, from authentication and databases to Azure deployment and AI tools. en-us remigiuszzalewski.business@gmail.com (Remigiusz Zalewski) remigiuszzalewski.business@gmail.com (Remigiusz Zalewski) Mon, 21 Sep 2026 00:00:00 GMT https://remigiuszzalewski.com/blog/rag-explained https://remigiuszzalewski.com/blog/rag-explained Why AI models hallucinate and the one idea that fixes it in almost every production AI system - Retrieval-Augmented Generation. Chunking, embeddings, vector search, prompt augmentation, and the four places RAG breaks. Mon, 21 Sep 2026 00:00:00 GMT remigiuszzalewski.business@gmail.com (Remigiusz Zalewski) airagllmembeddingsvector-database