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  3. Hallucination

Hallucination

When an LLM confidently produces false information.

Hallucinations happen because LLMs predict plausible text, not verified facts. RAG, citations, tool use and reasoning models all reduce โ€” but don't eliminate โ€” hallucinations.

Related terms

  • Retrieval-Augmented Generation (RAG)
  • Large Language Model (LLM)
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