Two thumbnails, one verdict: the AI critiques both, picks a winner and explains the differences that decide it. Uses 2 of your daily critiques.
Sign-in required — comparing saves both critiques to your history.
Both thumbnails first get the full AI critique — the same 0–100 score and ten judged dimensions as the single-thumbnail critic. A head-to-head pass then names a winner, how decisively it wins, and the handful of differences that actually matter, dimension by dimension.
Comparing uses two of your daily critiques and needs a (free) Google sign-in — both critiques and the verdict land in your history. Not sure the winner looks better in the wild? Drop both into the YouTube search-results preview and see them among real competing videos.