All-in-one workspace — docs, databases, wikis, projects. Notion AI made it an early AI-augmented SaaS leader.
From Wikipedia
Notion is a productivity and note-taking application developed by Notion Labs, Inc. It serves as a workspace for notetaking, knowledge management, data organization, and project and task tracking. It was first released in 2016 and is available on the web and as desktop and mobile apps. It is headquartered in San Francisco.