The Team plan is for teams of 2 to 150 people. Each member takes a seat, and you can mix two seat types. A standard seat is $25 per month, or $20 per month billed annually, and includes more model usage than Pro. A premium seat is $125 per month, or $100 per month billed annually, with 5x the usage of a standard seat.
Team adds a shared catalog, an organization workspace, audit export and single sign-on on top of everything in Pro. You can add seats at any time.
Prices are planned and exclude tax, and nothing can be bought yet. Larger organizations should read how Enterprise pricing works, and every plan is compared on the pricing page.