# Runloop pricing calculator: what your sandboxes cost, and on Runtime

Runloop bills $0.108 per CPU-hour, $0.0252 per GB-hour and $0.00034236 per GB-hour of disk while a devbox runs.

**Runtime costs 88% less than Runloop for an agent that waits on a model.**
100,000 one-minute runs of a 2 vCPU, 4 GiB sandbox, each using 20 CPU-seconds,
cost $63.89 a month on Runtime and $532.56 on Runloop, $468.68 less. Runloop
bills a devbox's CPUs for as long as it runs; Runtime bills the CPU your code
uses, at under a quarter of Runloop's rate. Rates checked 23 September 2026.

## How Runloop bills

Runloop meters three things for as long as a devbox runs: its CPUs, its
memory and its disk, all at the size the devbox was created with. The
`MEDIUM` devbox matches a 2 vCPU, 4 GiB sandbox: 2 CPUs, 4 GB and 8 GB of
disk.

| Meter  | Runloop, as published             | `MEDIUM` devbox, per hour | Runtime, same shape                         |
| ------ | --------------------------------- | ------------------------- | ------------------------------------------- |
| CPU    | $0.108 per CPU-hour while running | $0.216                    | $0.025 per vCPU-hour, measured              |
| Memory | $0.0252 per GB-hour               | $0.1008                   | $0.0075 per reserved GiB-hour               |
| Disk   | $0.00034236 per GB-hour           | $0.0027 for 8 GB          | Included while the sandbox runs             |
| Total  |                                   | $0.3195                   | $0.03125 waiting, $0.08 with both CPUs busy |

The calculator prices Runloop with the `MEDIUM` devbox's 8 GB of disk, so the
examples below all use that shape.

## Example workloads

A month of each at 2 vCPUs and 4 GiB, from the calculator above. Runloop's
figures include the disk.

| Workload                                                         | Runtime |   Runloop |
| ---------------------------------------------------------------- | ------: | --------: |
| Agent runs: 2 vCPU, 4 GiB, 60 s, 20 CPU-seconds, 100,000 a month |  $63.89 |   $532.56 |
| Every CPU busy: 2 vCPU, 4 GiB, 60 s, 120 CPU-seconds, 100,000    | $133.33 |   $532.56 |
| Benchmark tasks: 2 vCPU, 4 GiB, 30 min, 180 CPU-seconds, 10,000  | $162.50 | $1,597.69 |
| Quick checks: 2 vCPU, 4 GiB, 20 s, 20 CPU-seconds, 500,000       | $152.78 |   $887.61 |

Runtime costs 75% to 90% less in every row. Half-hour tasks that mostly wait
save the most, $1,435.19 a month, because Runloop bills both CPUs for the
whole half hour.

A `MEDIUM` devbox left running between tasks costs $0.3195 an hour, or $7.67
a day, whatever it does. A paused Runtime sandbox holds no CPU or memory and
is billed only for its stored files and memory, at $0.08 per GB a month.

Where the money goes: of Runloop's $532.56 in the first row, $360.00 is CPU
billed while the agent waits, $168.00 is memory and $4.56 is disk. Runtime's CPU
for the same runs is $13.89.

## What the calculator leaves out

- **Plan fees.** Runloop's Basic plan is free; Pro is $250 a month plus usage.
  Runtime has no plan: prepaid credit from $10.
- **Free credit.** Runloop gives $50 of credit, no card. Runtime gives 50
  sandbox hours on the [free trial](/docs/trial), no card.
- **Storage while suspended.** A suspended Runloop devbox keeps its disk, and
  its processes must be restarted. A paused Runtime sandbox keeps its files,
  memory and running processes for $0.08 per GB a month, for 1 to 365 days.

Network and taxes are left out on both sides.

## Price your own runs exactly

Once your agent has run on Runtime, price the same sandboxes at Runloop's
published rates:

```bash check
runtime compare --from runloop
```

It reads your settled sandboxes from the last 30 days, or up to 90 with
`--days`, and prints what you save a month.

For evaluation runs, [agent evals and
SWE-bench](/use-cases/agent-evals-and-swe-bench) shows how to run a benchmark's
tasks on Runtime in parallel. The rest of the comparison is [Runtime vs
Runloop](/docs/runloop-alternative), and the [sandbox cost
calculator](/calculators/sandbox-cost-calculator) prices every provider for your
shape.

## Sources

- [Runloop pricing](https://www.runloop.ai/pricing), checked 23 September 2026
- [Devbox sizes](https://docs.runloop.ai/docs/devboxes/configuration/sizes)
- Runtime [pricing](/docs/pricing)

Rival rates on this page were checked on 23 September 2026.