Artifacts is a separate content panel that appears alongside Claude's chat response, used to hold something you'll actually use, edit, or revise back and forth — a document, a piece of code, a chart. It displays apart from the conversation, making it easy to view, download, or keep refining directly.

A regular chat is one you open and start talking in directly, with no special effort to preserve context for next time. A Claude Project is a container that holds related documents, instructions, and multiple conversations together, letting context carry over and accumulate across sessions. Neither is inherently better — they serve different purposes.

A built-in workspace feature in Claude.ai that lets you create separate conversation environments for different tasks or clients. Each Project has its own <a href="/en/glossary/prompt-techniques/system-prompt/" target="_blank">System Prompt</a>, knowledge base, and team-shareable settings — upgrading one-off Claude conversations into persistent, frameworked, collaborative work infrastructure.

A <a href="/en/glossary/claude-tools/claude-projects/" target="_blank">Claude Projects</a> feature that lets you upload documents for Claude to reference across all conversations in that Project. Store your company overview, terminology guide, brand guidelines, or quality examples — and Claude automatically draws on that context for everything you ask, giving it 'long-term memory' specific to your work context.

Project knowledge priority refers to how Claude decides which reference document to prioritize when a <a href="/en/glossary/claude-tools/claude-projects/" target="_blank">Claude Projects</a> knowledge base contains multiple documents with conflicting content — it typically favors what you explicitly reference in the current conversation or what was uploaded most recently, rather than guessing which document is more 'authoritative.'