When Do I Actually Use What?

We've opened a lot of doors. The app, Cowork, Design, Code, the browser and Slack and Office surfaces, the engines behind them all. If a small part of you is bracing to memorize that list — relax. You don't have to.

Because almost all of it comes down to two questions.

Question one: do you want to talk, or to do?

This single question routes you to the right door more often than not.

Just want to think out loud — understand something, draft a bit of writing, get unstuck? That's the everyday Claude app. It's the doorway you'll use ninety percent of the time.

Want Claude to actually go off and do a whole job on your files — sort them, work through the steps, hand you back a result? That's Cowork. Remember the agent from earlier — an assistant with hands. This is those hands at work.

Want something visual — a flyer, a one-pager, a quick prototype? That's Claude Design, where you describe it and react to a first draft instead of staring at a blank page.

Want to build actual software, or fix code? That's Claude Code — and it's perfectly fine for that answer to be "that's not me." Knowing the door exists is the whole win.

Want Claude where you already are — in your browser, your team chat, your spreadsheet? That's the Chrome, Slack, and Office surfaces. And if you want it to follow your exact process or reach into your own tools, that's Skills and Connectors.

Question two: everyday, or heavy?

Once you know the door, there's a smaller question hiding behind it: how much engine does this need? You met those in the last lesson — the scooter, the sedan, the truck.

Most things are everyday, and the app quietly picks a sensible engine for you. It's only the hard, long, genuinely important jobs where you'd reach for the powerhouse on purpose. (The frontier tier is its own story — it exists, but public access is paused right now, so it isn't part of your everyday choice.)

Let's make it real

A few situations, run through the two questions:

• "Help me understand a confusing topic before my exam." You want to think out loud → the app, everyday engine.
• "I've got 200 messy files to sort and summarize." You want Claude to go do a whole job → Cowork.
• "I need a one-page flyer for my bakery's opening." You want something visual → Claude Design.
• "Draft a tricky email without leaving my team chat." You want Claude where you already are → Claude for Slack.
• "A long, high-stakes analysis I'm handing to leadership." Heavy and important → the app or Cowork, with the powerhouse engine behind it.

See the rhythm? You're not recalling a product catalogue. You're asking two plain questions and letting them point.

You're the driver now

Right at the start, we split people into drivers, mechanics, and the folks who build engines. You signed up as the driver — and a driver doesn't need to know how the engine is bolted together. They just need to know which vehicle to grab for which trip. That's exactly what you can do now.

When any one of these doors starts calling your name — when you want to really live inside Cowork, or Design, or Code — there's room for a whole course on each. For now, you've got the map of the house, and you know which room is which. That was the whole mission.