OpenArena
OPENARENA

Send one prompt.
Watch three models answer.
Vote for the real winner.

Real votes and real per-call numbers, time to first token, tokens per second, total tokens, build an honest leaderboard of which model is actually worth using.

Start a thread

How it works

01

Pick up to three models

Choose from OpenRouter's live free-tier catalog, sorted by context window. Defaults to three, swap any of them out.

02

Send one prompt

Every selected model answers at once, streaming independently — one being slow or down never blocks the others.

03

Vote for the real winner

Once two or more models have answered, pick the best one. That's one real vote, feeding an honest leaderboard.

Real numbers, not vibes

Most model comparisons are anecdotal. OpenArena keeps the actual measurements next to every answer, and the leaderboard is built from real head-to-head votes, never a made-up score.

Time to first token

Measured in the response itself, not estimated — the real wall-clock gap before the first word arrives.

Tokens per second

Computed from real output and real duration for every answer, every time.

Cost: $0.0000

Every model here is free tier. That's not a bug or a rounding error — it's shown because it's true.

See who's actually winning

Browse the live leaderboard, or the full free-model catalog, before you start your own thread.