Paid teams require a paid seat for every member; free teams can include unpaid members. Each seat has its own plan: a team can mix Premium and Max seats, and team admins choose the plan for every member from the Seat plan menu next to their name in Settings → Team. Moving a seat is prorated for the rest of the billing period. Your current plan is shown in Settings → Billing, with Upgrade now and Get Max buttons if you have Guest access, an Upgrade to Max button on Premium, and a Switch to Premium option on Max (on a team, these move only your own seat).
AI usage
Every plan includes a monthly amount of AI usage measured at the provider’s list price: Guest access includes $5, Premium $15, and Max $150. Each AI request draws on that amount based on the model and the tokens it used, so the heavy models go further into it: Opus 5 uses about 2.5×, and Fable 5.1 and GPT-6 Astra about 5×, what Sonnet 5 does for the same conversation (the model picker shows the multiplier). On a team, every seat keeps its own allowance: unused usage on one seat doesn’t move to another. Prepaid credits and usage billing are shared across the team and managed by the team owner. With Guest access the included amount is a hard cap: once it’s used, AI requests pause until the next calendar month or until you upgrade. Paid plans can keep going with credits or usage billing, both priced at list price plus 25%. Settings → Billing shows how much of this period’s included AI you’ve used, when it resets, your credit balance, and your usage billing settings. Included usage resets at the start of each billing period; it doesn’t roll over. When a paid plan’s included amount is used up, AI requests pause until one of these applies:- Credits — prepaid AI usage you buy in $10, $25, $50, or $100 packs. Credits are applied after your included amount, never expire, and carry over between periods.
- Usage billing — turn it on to bill AI beyond your included amount and credits to your card in $10 increments, up to a monthly limit you choose. If a charge fails, usage billing pauses until you update your payment method and turn it back on.
- Upgrading to Max — ten times the included usage for that seat. Upgrades take effect immediately and are prorated for the rest of the period. On a team, move the heavy users’ seats to Max from Settings → Team and leave the rest on Premium.