This article analyzes why AI assistant applications have gained widespread favor among investors. It points out that the personalized customization features in AI assistant apps are becoming increasingly prominent, enhancing user stickiness and opening up unique niche markets for different AI assistants. Compared to traditional algorithms, AI assistants can capture richer user behavior data characteristics and create barriers by continuously optimizing proprietary data. Even applications like Jasper, which lack proprietary models, can navigate out of困境 through proactive customization. Overall, AI assistants are laying the foundation for the "iPhone moment" of artificial intelligence.