| Per-claim credibility scoring (0-100) | Every verifiable claim in the video is extracted and scored individually, with the evidence linked next to it | Returns a synthesized answer with inline citations — excellent sourcing, but it isn't structured as a claim-by-claim scorecard of the source |
| Fact-checking in sync while you watch | Chrome/Firefox extension checks claims as they're spoken, in sync with playback | The Comet browser can assist on any page you're on, including video sites, when you invoke it — but it's a general assistant, not a playback-synced claim checker |
| Deepfake & AI-generated media signals | Flags synthetic/manipulated media signals alongside the claim analysis | Not a media-forensics tool — it's built to research and cite sources, not inspect a file for signs of generation |
| Open-ended research depth | None — it only audits media you give it. Ask it a general question and you're using the wrong tool | Its core strength. Deep Research produces long-form cited reports, and paid tiers let you pick which frontier model answers |
| Non-video sources (articles, PDFs, general topics) | Built for video and audio. Text sources aren't the job | Handles articles, documents, and open web topics natively, with Spaces to organize ongoing work |
| Cost for regular use | Free tier; Basic $3.99/mo, Premium $8.99/mo | Genuinely usable free tier with cited answers; Pro is around $20/mo and unlocks model choice and heavier Pro Search limits |