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4 posts tagged with "LLM"

Large Language Models, prompt engineering, and AI agents

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RAG and AI Agents: The Architecture Behind Intelligent AI Systems

· 10 min read
Hieu Nguyen
Senior Software Engineer at OCB

LLMs can reason brilliantly — but they're frozen in time. They don't know what happened last week. They've never seen your company's private database. And when they don't know something, they might confidently make something up.

RAG and AI Agents are the two architectural patterns that solve this. One gives the LLM relevant context. The other gives it the ability to act. Together, they form the backbone of every serious AI product built in 2025.