Notion is an all-in-one workspace combining notes, documents, databases, project management, and wikis — with AI deeply integrated across all of them. Notion AI can write and edit content, autofill database properties, summarise pages, extract action items, and answer questions about your entire workspace's contents via AI search.
Pricing: Free (unlimited pages, limited blocks for guests), Plus ($12/month, unlimited blocks, 30-day version history), Business ($18/month, unlimited version history, SAML SSO, advanced permissions), Enterprise (custom). Notion AI is an add-on at $10/user/month across all tiers.
Notion's core strength is flexibility — it can be configured as a personal second brain, team knowledge base, project tracker, CRM, content calendar, or product roadmap. The AI layer makes the stored information actionable: ask questions about your workspace, have summaries generated from meeting notes, or autofill structured database fields from unstructured content.
The weaknesses are that it can be slow to load on large workspaces, and the sheer flexibility means setup requires real investment to get right. Many teams start with Notion and revert to simpler tools because they never establish good organisational conventions.