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Faithfulness & Groundedness
Phase 03 · RAGtechnique

Evaluation metrics checking whether every claim made in an LLM output is strictly supported by retrieved context chunks.

Why it exists

Ensures the generator doesn't inject outside hallucinations or unbacked facts into its answer.

How it works

Evaluator LLMs (like RAGAS) break response text into individual statements and verify if each statement is logically entailed by context chunks.

Where you'll use this