Gave Gemini 4 Argon the same product-film brief I gave Opus 5.5. Here are both, side by side (all code, Remotion)

A couple weeks ago Claude Opus 5.5 made a 14s product film for my bookkeeping app in React + Remotion from one long brief: real UI from the repo, real design tokens, no After Effects. When Argon came out yesterday I gave it the exact same brief on the same repo. What I noticed: Argon rebuilt noticeably more of the real UI and packs more information into each frame. Opus made fewer, bigger camera moves and holds shots longer, so it feels more like a film than a walkthrough. I lean Opus, but Argon's UI fidelity is genuinely better, and I'm curious what people here think. On the other hand Aragon did some weird linings in the logo.