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Safety Beginner Also known as: Allucinazione · Confabulation

Hallucination

A model response that sounds plausible but is made up: false facts, nonexistent citations, APIs that do not exist, wrong data presented with confidence.

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In practice

It is the number-one issue when putting LLMs in business workflows. Fixes: RAG with sources, asking for citations, double-checking with a second model, validating structured output against rules. Never treat output as gospel without a check.

Related terms

RAG Alignment

Seen in the wild

4 entries mentioning it
  1. NIST AI 600-1: risk profile for generative AI systems
    Medium
  2. Claude 2.1: 200K context and fewer hallucinations
    High
  3. Gorilla: fine-tuned LLaMA that calls APIs without errors
    Medium
  4. Galactica: Meta launches (and pulls in three days) a science LLM
    Medium
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