Faithfulness
Expanded definition
Faithfulness is an evaluation axis for RAG and extraction: unsupported claims fail even if the prose is fluent. It is distinct from completeness (did we cover the question) and from helpfulness. LLM-as-judge rubrics should score faithfulness separately and list failing quotes. Human spot-checks are still required because judges can miss subtle contradictions.
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Faithfulness FAQ
What is Faithfulness?
Faithfulness is whether every claim in a generated answer is supported by the supplied evidence.
How is Faithfulness used in AI systems?
Faithfulness is an evaluation axis for RAG and extraction: unsupported claims fail even if the prose is fluent. It is distinct from completeness (did we cover the question) and from helpfulness. LLM-as-judge rubrics should score faithfulness separately and list failing quotes. Human spot-checks are still required because judges can miss subtle contradictions.
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