Interview Q&A / AI & Generative AI
AI & Generative AI interview questions
LLMs, tokens, embeddings, RAG and prompt engineering, the questions every AI role now asks.
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- Why must you use the same embedding model for documents and queries?
Each embedding model builds its own vector space, with its own dimensions and meaning for every number. Vectors from different models are not comparable, so mixing them gives meaningless similarity scores, or fails if the sizes differ.
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