| What actually gets checked | Every verifiable claim spoken in the video, extracted from the transcript and scored 0-100 with evidence linked | Your search query — matched to an existing published fact-check article. YouTube does not fact-check individual videos |
| What triggers it | You paste a link, or the browser extension runs while you watch | A search query about a specific claim ("did a tornado hit Los Angeles"). General topic searches ("tornado") typically show nothing |
| Coverage when no fact-check exists yet | Still analyzes — cross-references claims against live web sources on demand | No panel appears. It depends on an eligible publisher having already published a ClaimReview-tagged article |
| Who does the checking | Automated: AI transcription, claim extraction, and web cross-referencing — you verify via the linked sources | Human fact-checkers at IFCN-accredited orgs and authoritative publishers (PolitiFact, FactCheck.org, The Dispatch, Washington Post Fact Checker). More rigorous per check |
| Platforms covered | YouTube, TikTok, Instagram Reels, podcasts — any video or audio link | YouTube only, and not available in all countries and languages |
| Cost and setup | Free tier; Basic $3.99/mo, Premium $8.99/mo. Extension install optional | Completely free, built into YouTube, nothing to install, no account needed |