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Retrieval-Augmented Generation (RAG) blends real-time information retrieval with large language models to deliver highly accurate, personalized, and up-to-date responses. In 2025, it’s revolutionizing web and mobile apps—powering smarter banking, healthcare, and e-commerce experiences—while the market is projected to soar from USD 1.96 billion in 2025 to USD 40.34 billion by 2035.