# Factual Consistency Evaluation

> Source: https://sukruyusufkaya.com/en/glossary/factual-consistency-evaluation
> Updated: 2026-05-13T21:00:30.461Z
> Type: glossary
> Category: dogal-dil-isleme
**TLDR:** An evaluation dimension that measures how consistent a generated summary or answer is with the facts in the source content.

<p>Factual consistency evaluation shows that fluency alone is not enough in generative NLP systems. A summary or answer may be linguistically strong, but if it introduces unsupported information it is not reliable. For that reason, accuracy verification should be treated as a separate quality layer, especially in summarization, RAG, and QA systems.</p>