A Project in Claude is a dedicated workspace for a recurring topic — a client, a codebase, a research area — that holds its own chats, uploaded files, and standing instructions. Create one for anything you come back to more than a couple of times, and every new chat inside it inherits that context automatically.
The practical win is not repeating yourself. Attach your style guide, product brief, or reference documents once at the Project level instead of pasting them into every new conversation. Ask a question inside the Project and Claude already has the background it needs to give a useful first answer.
Artifacts solve a different, smaller annoyance: long code blocks, documents, or diagrams cluttering the main chat. When Claude generates one, it opens in a separate panel you can keep editing directly, with a live preview for web code, while the conversation itself stays readable instead of turning into a wall of text.
The two features compound well together. A Project holding a web app's context can generate an Artifact, get feedback, revise it in place, and leave a clean version ready to copy out — without the running transcript filling up with five slightly different versions of the same component.
None of this requires more effort than opening Settings once. The time investment is small; the payoff shows up every single time you'd otherwise be re-explaining background information or scrolling through chat history looking for the working version of something you built two days ago.