GPT 5.4 在各项 benchmark 上全面领先。但当我把同一个复杂的产品战略问题扔给两个模型时，benchmark 分数和真实输出质量之间的鸿沟令人震惊。

GPT 5.4 dominates every benchmark. But when I gave both models the same complex product strategy prompt, the gap between benchmark scores and real-world output was staggering. Here's what actually happened.