Gemini 4 Pro beats Opus 5.5 on seaplane physics in Arena test, user says
Given the same prompt to build a 3D seaplane simulation with buoyancy and water interaction, the Arena preview of Gemini 4 Pro reportedly outperformed the released Claude Opus 5.5.
Gemini 4 Pro (in the arena) outperformed Claude Opus 5.5 in a 3D seaplane physics simulation. That says more about Google's trajectory than any single benchmark could. Same prompt, both models: build a 3D floatplane simulation with working physics. Gemini 4 Pro reportedly nailed the buoyancy and water interaction. Opus 5.5 did not keep up, according to the arena comparison making the rounds. The kicker is that Gemini 4 Pro has not even officially shipped yet. This was a preview build beating a production model on a task built specifically to stress-test spatial reasoning. My honest take: one demo does not crown a champion, and floatplane physics is a narrow slice of what these models actually get used for. But if Google is closing gaps like this before launch day, Anthropic does not have the comfortable lead people assumed a few months ago. The model wars just got a lot less predictable. Does this change who you trust for serious coding work, or is this still just a highlight reel?
This post quotes another post: “Gemini 4 Pro beats Claude Opus 5.5 on 3D floatplane physics simulation, arena test shows”