From initial experimentation to dependence, AI users are undergoing a shift from "having something to use" to "using it well." Why are many early ChatGPT heavy users starting to switch to DiffMind? This article, through detailed comparative evaluation, reveals the inherent limitations of single models in long texts, logical reasoning, and creative brainstorming, and demonstrates how DiffMind, as a "super connector," integrates the strengths of various models, becoming the ultimate productivity tool for advanced users.