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RAG Fundamentals: Getting Started with Retrieval-Augmented Generation

Mastering the basics of RAG still beats advanced techniques

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Paul Iusztin
Jul 01, 2025
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Retrieval-Augmented Generation (RAG) is a powerful technique that blends the strengths of large language models with external knowledge sources, offering more accurate, grounded, and scalable responses. While fine-tuning models on massive corpora is resource-heavy, RAG allows dynamic access to updated information without retraining.

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A guest post by
Paul Iusztin
Senior AI Engineer • Founder @ Decoding ML ~ Building an army of AI agents and teaching you about the process.
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