CapabilitiesBilling models
Billed per second
Usage is counted to the second rather than by the hour or month.
Short answer: 14 of 16 providers offer it fully: Blaxel, Boat, Cloudflare Sandbox, Daytona, E2B, InstaBox, Lizard, Modal, Morph, Runtime, Sandboxer, Sprites, Tensorlake and boxd. With a catch: Vercel Sandbox. Checked 29 October 2026.
Who offers it
Part of Billing models, which explains why it matters.
Fully: Blaxel, Boat, boxd, Cloudflare Sandbox, Daytona, E2B, InstaBox, Lizard, Modal, Morph, Runtime, Sandboxer, Sprites and Tensorlake. With a catch: Vercel Sandbox. Not at all: Agent 37.
pricing-page “$0.0000115 / GB RAM · second” Source
docs-confirmed “You pay per second, only while a sandbox runs.” Source
Usage is added up every second but settled in 15-minute windows.
pricing-page “Usage is metered every second and settled every 15 minutes” Source
pricing-page “Containers are billed for every 10ms that they are actively running” Source
docs-confirmed “All billing is calculated per second.” Source
pricing-page “Running sandboxes are billed per second for provisioned CPU and RAM.” Source
docs-confirmed “Runtime is metered by the second, only while a machine is running.” Source
pricing-page “Running sandboxes are billed per second, including idle time.” Source
docs-confirmed “Modal Sandboxes are billed by the second based on whichever is higher: your resource request or your actual usage.” Source
pricing-page “Per-second compute” Source
docs-confirmed “Sandboxes you run bill as usual, per second.” Source
docs-confirmed “Metering is per second, from the moment a sandbox is up until it is stopped.” Source
pricing-page “Compute bills by the second, storage on what you provision.” Source
docs-confirmed “runtime usage is measured by the second” Source
The catch: Memory is counted in whole minutes, so a 20-second task is charged for a full minute of memory.
pricing-page “Provisioned memory is billed in 1 minute minimum increments to account for sandbox lifecycle management.” Source
Note: Usage is counted by the minute, not the second, so every short task rounds up.
inferred “Metered by the minute: compute while the sandbox runs, disk while you keep it.” Source
Related
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