Notion is the flexible workspace that combines notes, databases, project management, and wikis in a single tool — with Notion AI adding writing assistance, summarization, auto-fill, and Q&A capabilities throughout. The block-based structure lets teams build exactly the workspace they need rather than conforming to a rigid tool's assumptions. Notion AI can answer questions about anything in your workspace, summarize long pages, translate documents, and write drafts from brief descriptions. The database views — table, kanban, calendar, gallery — make it a lightweight project management tool as well as a knowledge base. With millions of users across individuals, startups, and enterprises, Notion has become the default flexible workspace for teams that want one tool instead of five.