Every plan runs the same engine, the same worlds and the same API. A plan sets how much of it an account holds at once and how fast it may go.
FIRST10020% off Pro for life — first 100 customers
$0a month
For trying worlds, writing procedures and small agent runs.
$29a month
For teams training and evaluating agents every day, with four times the room.
Custom
For labs that need many worlds at once, custom worlds and limits, and an agreement of their own.
Prices are in US dollars, billed monthly in advance through Stripe, plus any tax that applies. Pro renews each month until you cancel; cancel any time from Manage billing in the console, and the plan stays until the end of the period paid for. A world's definition is at most 4 MiB on every plan, because each world runs in one object with 128 MB of memory. FIRST100 takes 20% off Pro for as long as that subscription lasts, once per account, for the first 100 accounts to redeem it; enter it when you create your account or when you upgrade. See the Terms.