Only team admins can invite people, and the organization owner is admin of each team they create.
Open Organizations in the sidebar and click Manage next to the team to open its Members page.
Click Invite Member, enter the email address and choose Member or Admin.
The invitee clicks Accept Invite in the email, then signs in or chooses Create Account with the invited address.
Invites expire after 72 hours. To send a new one, click Cancel next to the pending invitation on the Members page, then invite the address again.
Member runs models, creates projects and chats with team agents. Admin can also edit Team Settings, manage members, roles and spend limits, and transfer credit and redeem coupons for the team. Everyone in the team sees all members and their spending, and team runs charge the team wallet.
Details: How do organizations and teams work? and Managing Teams.