Muse or ChatGPT? Decide with one question: do you need an answer, or do you need the job finished? If you need an answer, a piece of writing, or an analysis, a chat product serves you well. If you want a task carried through several steps inside your own apps, you need an agent like Muse.
The difference is not "smarter" but "further": a chat answers what you ask and then waits. Muse takes a task, keeps working in its own cloud computer, connects email, calendar, and shopping or travel services, and reports back when something is done or needs your confirmation — even after you have closed the app. Sensitive steps such as sending an email or making a purchase are shown for confirmation first.
Three situations, three calls
First: you want to know something quickly, write something, or have a file summarized. Use whichever chat product you are most comfortable with; an agent adds no advantage here, only extra steps. Second: you want someone to sort your email, coordinate schedules, compare prices, and order, without you clicking through every step. That is agent work — provided you are in a region where Muse is available and willing to connect the accounts it needs. Third: you want both. Then the rule is: ask and write in chat, get things done in the agent. Do not copy a finished answer back and forth by hand; give the agent the goal in one sentence and let it handle the middle steps.
A common mistake is comparing feature lists: "Can X do that too?" Almost every product can now connect or run something. What matters is what is actually available in your region, which accounts you truly want to connect, and whether you are willing to confirm before sensitive steps. For readers in mainland China, availability is the deciding point anyway: Muse has not launched there, so the everyday choice for now is the chat product.
If you live in a launched region, test Muse with one small, real task: "Tidy my inbox and show me the three most important emails." Check whether the middle steps are traceable and whether confirmations arrive at the right points. If that feels safe, widen what it may do step by step. If not, stay with chat and wait until the agent features in the product you already use are mature.