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# RAG Architecture Explained: Building reliable LLM Systems with Retrieval ![](https://cdn.prod.website-files.com/6295808d44499cde2ba36c71/69c81a93508c252d692859e1_nj.webp) [By Ashish Dubey](https://www.truefoundry.com/blogs/authors/ashish-dubey) Published: April 17, 2026 ![What is RAG architecture](https://cdn.prod.website-files.com/6295808d44499cde2ba36c71/69e1cd3b388d3fd8343c9830_image1%20(2).webp) ## What is RAG architecture? ![RAG architecture meaning](https://cdn.prod.website-files.com/6295808d44499cde2ba36c71/69e1cd6b2872b527228ef9e4_image3%20(2).webp) Retrieval augmented generatio