Security questionnaires are a linchpin of vendor risk assessments, but inconsistencies across answers can erode trust and delay deals. This article introduces the AI Narrative Consistency Checker—a modular engine that extracts, aligns, and validates answer narratives in real time, leveraging large language models, knowledge graphs, and semantic similarity scoring. Learn the architecture, deployment steps, best‑practice patterns, and future directions to make your compliance responses rock‑solid and audit‑ready.