EvidenceLens — AI Summaries & Claim Checks

Understand YouTube videos faster — see what's backed by research

EvidenceLens helps you understand YouTube videos faster by giving you a clear overview of the key points, checking which claims are backed by published research, and letting you ask follow-up questions grounded in the transcript. How it works 1. Open any YouTube video — EvidenceLens appears automatically in the sidebar. 2. Get a fast overview of the main points, structure, and key takeaways. 3. Check claims against 200M+ peer-reviewed research papers with cited sources. 4. Ask follow-up questions and get transcript-grounded answers with evidence context. Features - Fast video overview — main points, structure, and takeaways in seconds. - Research-backed claim checks — see which claims are supported, disputed, or left unclear by published research, with paper citations. - Ask about the video — transcript-grounded Q&A with research context when it matters. - 12 languages — English, Polish, German, French, Spanish, Italian, Portuguese (BR), Dutch, Russian, Chinese (Simplified), Japanese, Korean. - Dark & light theme — automatically matches your system preference. - Free tier — core overview, claim check, and chat features available without an account or payment