Everything you need to use WMArena — voting, starting a battle, and reading the leaderboard.
Pick a starting image and an action, watch the two anonymous clips, and choose the one that renders the action more convincingly — or call it a tie. Identities are revealed only after you vote, and sides are randomized, so the result reflects genuine preference.
Yes — upload a starting image, describe the action, and two image-to-video models each render the next-world clip. Generating from your own uploaded image requires a quick sign-in (a one-tap Google or email-code login); browsing and voting do not.
Blind pairwise votes are aggregated with a regularized Bradley-Terry model into an Elo-scaled leaderboard with confidence intervals. The full methodology explains the scoring, the judged dimensions, and how vote integrity is maintained.
If a clip won't load or a vote won't record, refresh and try again — battles are designed never to get stuck. For persistent issues, check the status page.