Claude Projects and Claude memory are two 📝Claude features: Projects are self-contained workspaces with their own chat histories and knowledge bases, and memory is saved as individual topics, with each project keeping its own.
A project pairs a knowledge base, where users upload documents, text, code or other files, with project instructions that further tailor 📝Claude's responses. Projects are available to all users, including free accounts, which can create up to five. On paid plans (Pro, Max, Ultra, Team and Enterprise), Claude enables 📝retrieval-augmented generation to expand project knowledge capacity by up to 10x, and on Team and Enterprise plans projects can be shared with other members of an organization. Anthropic is rolling out a new version of projects in stages, starting with Claude Code; other existing projects in chat and Cowork stay on the current version for now.
Each project has its own memory. Inside a project, Claude uses that project's memory alongside memory from chats outside projects, but not memory from other projects, and new memory is saved to the project. Turning off "Use account memory" on a project's page keeps its memory fully separate, and project memory is deleted when the project is deleted.
Memory is on by default for Free, Pro, Max and Ultra plans; on Team and Enterprise plans, owners control whether it is available. Its settings, controls and storage model are covered in 📝Memory.