Sync room · 2–8 lanes

Compare the same second

Load two or more runs, start them together, and watch what each model does with the same moment. The controls drive each model's own animation; nothing is re-rendered or edited.

Choose lanes

Select at least two runs. On mobile, lanes stack vertically.

Doubao 2.1 ProByteDance 23.5 Kimi K3.1 ProMoonshot AI 21.5 GPT-6.1 SolOpenAI 20.5 GPT-6.0 LunaOpenAI 18.5 DeepSeek FlashDeepSeek 18.0 GPT-5.6 SolOpenAI 17.5 HY3Not stated 16.0 Agnes 3.0 FlashAgnes AI 9.5

Ready

00:00.0Session clock

Doubao 2.1 Pro

ByteDance

23.5

Doubao 2.1 Pro — still frame from its animated pelican-on-a-bicycle run

Ready Press start

Kimi K3.1 Pro

Moonshot AI

21.5

Kimi K3.1 Pro — still frame from its animated pelican-on-a-bicycle run

Ready Press start

SyncSynchronization uses same-origin iframe APIs. CSS animations are paused and reset directly; models that ship their own pause button are controlled through that button. Expect a few milliseconds of drift.

Contact points

What to look for

Watch the contact points: feet against pedals, wing against handlebar, body against saddle. Then check whether the scenery moves independently of the rider. A model can animate the background and forget the bicycle.

Feet ↔ Pedals

Do the feet stay locked through the full crank cycle?

Wing ↔ Handlebar

Does the rider hold on, or balance in mid-air?

Body ↔ Saddle

Is the pelican on the bike, or floating above it?