One prompt, many models

We give the same task to the most talked-about models — American, Chinese, European — and show the results side by side. No cherry-picking: only each model's first answer.

First test: the aquarium

We built an empty aquarium with short rules. Every model got the same description of a fish — a royal blue halfmoon betta male — and wrote its code: how it looks and how it behaves. All the fish swim together. Hover over a fish to see which model made it.

Second test: an iPhone 19 prototype

Every model designed an iPhone 19 concept — how it looks from the front, the side and the back, and how its screen comes alive. All the phones stand side by side on identical pedestals, at the same size; at every moment they show the same side and get the same events: a call, a notification, an unlock, the camera. Click a phone to enter focus mode, where you can tap its screen.

Third test: the Agar aquarium

A tournament: every model wrote only a fish's "brain", and the rules are as in agar.io — eat food, grow, eat those smaller than you, run from those bigger than you. All the fish look the same. Everyone played everyone else in two one-on-one matches; the matches were computed in advance, and the site shows the standings, the round-robin cross-table and the match replays.

Rules

• Only the first result. We repeat a request only on technical failures (network, rate limits).
• The same prompt and the same system prompt for everyone.
• Reasoning at the high level for every model; where there are no levels, reasoning is turned on.
• No tools: no web search and no image generation — everything is drawn by code.
• Vendor settings: we leave temperature and top_p alone.
• No quality loss: we don't use providers that quantize a model more than the lab itself does.
• The check date is shown on every result — models change over time.

Claude runs through the Anthropic API, all other models through OpenRouter.