Notion AI is the AI layer built into the Notion workspace/wiki/database product, offering in-line writing assistance, a Notion Agent capable of multi-step tasks (e.g., building a project tracker from a meeting summary), AI Meeting Notes, Enterprise Search across connected apps, and — since January 2026 — a model picker between GPT-5.2, Claude Opus 4.5, and Gemini 3 (plus an "Auto" mode). As of early 2026, Notion restructured pricing so that full AI features are bundled only into the Business tier and above, ending the old $10/month standalone AI add-on. Current tiers: Free ($0, unlimited blocks for individuals, limited AI trial), Plus (~$10/user/month annual, workspace collaboration, still no full AI), Business (~$20/user/month annual — the effective minimum price for full AI including Agent and Ask Notion), and Enterprise (custom). Autonomous "Custom Agents," launched February 2026, additionally consume purchased Notion Credits ($10 per 1,000) on top of the Business/Enterprise plan.