Notion Adds Its First Open-Source Model — MiniMax M2.5

Custom Agent now supports MiniMax M2.5 — the first open-weight model available in Notion.

Compared to proprietary models, basic tasks can cost up to 10x less. It's a great fit for agents that don't need top-tier reasoning, such as simple classification, format conversion, and information extraction. Notion continues to expand its model lineup without locking users into a single vendor.