同一提示词生成 Three.js 机械蝴蝶：Gemini 4 Pro vs GPT-6 Astra
作者用同一提示词分别让 Gemini 4 Pro 与 GPT-6 Astra 做交互式 3D 机械蝴蝶，两者在 UI、结构与渲染上完全不同。
I built the same thing twice, once with GPT-6 Astra, once with Gemini 4 Pro. An interactive 3D mechanical butterfly in Three.js. One prompt, copy-pasted into both. I changed nothing else. What came back were two completely different machines - different UI, different structure, different rendering. Gemini 4 Pro gave me "Papilio Mechanica": a clockwork wireframe, exploded schematic, spec panel, drag-to-orbit controls. GPT-6 Astra gave me "Papilio Nocturne": a gyroscopic heart, iridescent azure-and-gold wings, a hidden helical transmission, exterior/interior modes. 99% of people run one model and assume that's what the task looks like. The 1% run the same prompt across models and ship the better build. That's not a prompting gap. That's a stack gap, and it takes one evening to close. Prompt → Astra → Gemini → Compare → Ship the winner This one test taught me more than any $1000 AI course.