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What is a Faithfulness Metric?
A faithfulness metric scores whether a generated answer is consistent with the evidence it was given—typically retrieved passages in RAG—without inventing details outside that context.
An answer can be relevant yet unfaithful if it adds unsupported facts.
Related Giskard articles
Score RAG faithfulness with Giskard — use groundedness and context-consistency checks so RAG answers cannot invent facts. Learn more via Practical guide to LLM hallucinations · giskard.ai.
Authority: RAGAS faithfulness research (arXiv)
