Lobe pump animation test: Opus 5.5 vs GPT-6 Astra vs Grok 4.7 vs Gemini 4 Argon
The same prompt is run through Claude Opus 5.5, GPT-6 Astra, Grok 4.7 and Gemini 4 Argon to see which model's lobe pump rotors actually mesh and move fluid.
THE BEST AI VIDEO BENCHMARK ISN’T A CINEMATIC PROMPT. IT’S TWO ROTORS THAT HAVE TO MESH WITHOUT COLLIDING. same prompt. same machine. four models: → Claude Opus 5.5 → GPT-6 Astra → Grok 4.7 → Gemini 4 Argon a lobe pump has nowhere to hide. the rotors either interlock, seal the chamber and move fluid through it— or two shapes spin inside a box while the animation pretends something happened. some outputs look polished. some look mechanically correct. those are not the same thing. I didn’t fix the generations. I didn’t change the timing. I’m not scoring them for you. look closer: → do the lobes mesh? → does the fluid travel? → does the mechanism survive one full rotation? which model actually built a pump and which one only animated the idea of one? Opus, Astra, Grok or Gemini?
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