Hallucination

When an LLM invents incorrect facts.

Definition

Hallucination is when an LLM confidently outputs information that isn't true. Mitigations: RAG, grounding to sources, requiring citations, fine-tuning, lower temperature.

Related terms

GEO

Generative engine optimization.

LLM

Large language model.

RAG

Retrieval-augmented generation.

llms.txt

File telling AI crawlers what your site is about.

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