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Compute

On Appwrite Cloud, paid plans let you choose how much CPU and memory apply to build work and to runtime work. Functions and Sites each expose two settings: a build specification (install, compile, bundle, package) and a runtime specification (executions for functions; serving traffic and SSR for sites). You can pick different tiers for each phase so heavy builds do not force you to oversize steady execution, and vice versa.

These options help you tune performance and cost: for example, a large install or compiler step can use a higher build spec while a smaller spec covers routine invocations or traffic.

Specifications

Appwrite Cloud offers the following specification tiers. The same tiers are available for build and runtime independently on each function or site:

MemoryCPU coresHourly usage
512MB
0.5
0.25
512MB
1
0.5
1GB
1
1
2GB
2
4
4GB
2
8
4GB
4
16
Note

On Appwrite Cloud, Pro plan organizations can change build and runtime specifications from the default 512MB and 0.5 CPU. The Free plan uses the default. For custom compute options, contact our sales team.

Configure specifications in the Appwrite Console under each function or site Settings - Resource limits. See also the Functions and Sites configuration guides.

GB-Hours

GB-hours quantify compute use by combining memory (in GB) and duration (in hours). Both build activity and execution (function runs or site serving, depending on the product) draw from your plan's GB-hour pool according to the specifications in effect for that phase.

How it works:

  • Memory allocation: The GB value comes from the spec in use for that phase (build or runtime).
  • Duration: Time that phase is active (for example, build duration or execution time).
  • Calculation: Memory (GB) multiplied by hours gives GB-hours for that usage.

Example:

If a function runs with 4 GB of memory for 2 hours of execution time:

4GB * 2 hours = 8 GB-hours

That counts toward your execution GB-hours for the billing period.

Pricing

  • The Free plan includes up to 100 GB-hours of execution and build time per month.

  • The Pro plan includes up to 1,000 GB-hours of execution and build time per month. Additional usage is billed at $0.09 per GB-hour.

Once the monthly GB-hours limit is reached, additional usage is billed automatically. Set budget alerts and a budget cap to avoid unexpected charges.

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