Why can a single AI assistant live across different apps like Discord, Feishu, and your phone at the same time?

Answer: It is designed as a cross-platform runtime system

It is just a chatbot ported to multiple platforms — Wrong. Simply porting a chatbot to multiple platforms would require separate instances and manual switching. The real breakthrough is that the AI is built as a runtime system that spans across messages, tools, devices, and workflows, allowing it to be summoned and continue tasks seamlessly.

It is designed as a cross-platform runtime system ✓ — Correct! The AI is designed as a runtime system that lives across multiple contexts—messages, tools, devices, memory, reminders, and long-running workflows. This means it can be present everywhere, persist state, and act across apps without manual intervention. That's why it feels more like an operating system than a simple chatbot.

It uses a special cloud sync for each conversation — Wrong. Cloud sync alone doesn't enable the AI to act across contexts—it would just sync chat logs. The key is that the AI itself is a runtime that can execute actions and maintain state across different surfaces, not just sync data.