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When is RAG not helpful? What are the limitations of Retrieval-Augmented Generation?
Understanding RAG limitations and when to use alternatives
LLMProduction MLReal Interview
Updated Dec 23, 2025
Question
RAG Limitations
Difficulty: Medium
Estimated Time: 10-15 minutes
Tags: RAG, LLM, System Design
Type: Technical Concept
Question
Give a situation when RAG is not helpful. What are the limitations of Retrieval-Augmented Generation?
What They're Looking For
- Deep understanding of RAG beyond just "how it works"
- Critical thinking about tool selection
- Knowledge of alternative approaches
- Real-world experience with RAG failures
Your Solution
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