Apple is replacing Siri with a chatbot, a strategic reversal of its long-held view that AI should only be woven into existing features. This acknowledges the market success of conversational interfaces popularized by OpenAI and Google, suggesting a dedicated chat experience is now essential for a modern OS.

A huge portion of product development involves creating user interfaces for backend databases. AI-powered inference engines will allow users to state complex goals in natural language, bypassing the need for traditional UIs and fundamentally changing software development.

A truly "AI-native" product isn't one with AI features tacked on. Its core user experience originates from an AI interaction, like a natural language prompt that generates a structured output. The product is fundamentally built around the capabilities of the underlying models, making AI the primary value driver.

The best UI for an AI tool is a direct function of the underlying model's power. A more capable model unlocks more autonomous 'form factors.' For example, the sudden rise of CLI agents was only possible once models like Claude 3 became capable enough to reliably handle multi-step tasks.

The end state for enterprise AI is a unified, conversational agent serving as the primary interface for a brand. This "digital concierge" will handle sales, support, and other interactions, potentially replacing websites and mobile apps as the main customer touchpoint.

The best agentic UX isn't a generic chat overlay. Instead, identify where users struggle with complex inputs like formulas or code. Replace these friction points with a native, natural language interface that directly integrates the AI into the core product workflow, making it feel seamless and powerful.

The primary interface for AI is shifting from a prompt box to a proactive system. Future applications will observe user behavior, anticipate needs, and suggest actions for approval, mirroring the initiative of a high-agency employee rather than waiting for commands.

The next frontier for conversational AI is not just better text, but "Generative UI"—the ability to respond with interactive components. Instead of describing the weather, an AI can present a weather widget, merging the flexibility of chat with the richness of a graphical interface.

V0's initial interface mimicked Midjourney because early models lacked large context windows and tool-calling, making chat impractical. The product was fundamentally redesigned around a chat interface only after models matured. This demonstrates how AI product UX is directly constrained and shaped by the progress of underlying model technology.