The canvas
What Claude Design actually is, who Anthropic built it for, and why the output being real code changes what you can do with it.
The core mechanic is a split surface. On the left, a chat panel where you direct the work. On the right, a live canvas where the work appears. You describe what you need, Claude builds a first version, and you refine it until it is right.
Under that, the thing that matters most: the output is real, runnable HTML, CSS and JavaScript. Not a static mockup, not a picture of an interface. A prototype from Claude Design opens in a browser and behaves like a product — buttons press, flows flow, and the ceiling is whatever a browser can do rather than whatever a design tool can export.
It lives at its own URL with its own export options. Access is included with Pro, Max, Team and Enterprise plans and draws on your subscription limits, with the option to enable extra usage beyond them. For Enterprise organisations it ships off by default — an admin enables it in Organisation settings.
Who it is for
Anthropic built it for two audiences at once, and that dual aim explains most of its design decisions. Experienced designers get an exploration engine — a way to try twelve directions in the time two used to take. Everyone else — founders, product managers, marketers, account teams — get a way to produce a credible first artefact without booking a designer's week for a draft.
The second group is the larger change. When a product manager can hand a designer a working prototype instead of a paragraph, the designer's job shifts from interpreting to elevating. That is a better use of the scarcest skill in the room, and it is the reason this product is more disruptive to workflow than to tooling.
What it is not
It is not a vector editor. There is no layers panel, no pen tool, and no component library you author by hand. Claude authors; you direct. If your work is pixel-level typographic control or illustration, this is a different instrument — a good one, but not that one.
It is also not wired to production. A prototype has no real data, no auth and no backend. It looks convincing enough that people forget this, which is a hazard worth managing rather than a flaw to apologise for.
Chat gives you words. Code gives you software. Design gives you the thing in between — the rendered idea you can put in front of another human before committing engineering time to it.
It is the rehearsal room between the writing desk and the recording session.