Modal Sandboxes adopt burst pricing, cutting costs 58% versus reservations

Modal now bills Sandboxes by active resource use instead of fixed reservations, letting each Sandbox burst past its default 0.125-core and 128 MiB request and pay only for what it uses each second. In a 20-minute coding agent example, bursting cost 8.4¢ per Sandbox-hour versus 20.0¢ for a fixed reservation, a 58% saving. CPU can burst up to 16 cores above request by default, with memory uncapped unless a limit is set.