Grokking the AI System Design Interview
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Keeping Answers Grounded
1. Retrieval Reduces Hallucination; It Does Not End It
This lesson exists to deal with an uncomfortable fact. Even a model holding the exact right document in its context can still get things wrong. It can contradict the document. It can embellish it. It can blend it with facts memorized from training. Or it can confidently answer a question the document never actually addresses. RAG shrinks that risk by handing the model the right material. But handing over the material is not enough by itself
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