RAG at the Crossroads: Mid-2025 Reflections

A mid-2025 assessment of RAG development, examining whether expanding context windows in frontier models reduce the need for RAG or whether retrieval remains essential for cost, accuracy, and freshness. The article analyzes the convergence of RAG with agent memory systems.

Why it matters: Understanding RAG's evolving role helps developers make informed architectural decisions as model capabilities continue to advance.

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