GPT-6 Astra vs Kimi K3.1 Pro vs Claude Opus 5.5 Same prompt: an interactive soft-body gummy eyeball in Three.js. Poke it, stretch it, throw it, swing it by the nerve. - GPT-6 Astra: 4 min, $1.07 - Kimi K3.1 Pro: 8 min, $0.24 - Opus 5.5: 19 min, ~$6.09 Kimi was about 25x cheaper than Opus. But Opus is the only one that got the whole brief: red veins, a red gummy nerve you can lift it by, and a real taffy stretch when you drag it. Which one would you pick?