Pricing

• What do I pay for?

  Simple. We charge for two things:

  1. Running the model.
  2. Cloud storage of model output files.

• How much do runs cost?

  Pricing starts at $1 per run. The cost of a run is calculated based on the CPU time consumed by the run. CPU usage depends on model grid size, grid resolution, duration of the simulation, and physics settings.

  Examples:

  • For a 5-day forecast using a domain covering 4800 by 3600 km at a grid resolution of 12 km and 30 vertical levels, you can expect to see the following options (times and prices will vary depending on the model configuration):

    Price	Run Time
    $2.86	6 hours
    $3.67	4 hours
    $5.21	3 hours 15 minutes
    $7.03	2 hours 45 minutes
    $11.68	2 hours 30 minutes

  • For the same setup, but with an added storm-following nest of 1200 by 1200 km at 4-km grid resolution, you can expect to see the following options (times and prices will vary depending on the model configuration):

    Price	Run Time
    $6.18	19 hours 45 minutes
    $7.87	13 hours 30 minutes
    $10.95	10 hours 30 minutes
    $15.69	8 hours 45 minutes
    $26.09	8 hours

• How much does output file storage cost?

  We currently charge $0.25 / GB / month for cloud storage of model output, pro-rated to the second. This price also includes the infrastructure that will provide slicing and sampling of model output through the upcoming Cloudrun API. You can download and delete model output at any time to avoid storage charges.

• Upfront pricing

  When you upload your namelist file, you'll be given several pricing options before you start your run. You can pay more to use more parallel processors and complete your runs more quickly, or pay less if the cheaper option is fast enough.

  Each pricing option includes an estimated time it'll take your WRF run to complete. These are estimates, and may not reflect the actual time of completion. Cloudrun continuously analyzes run-time data to provide more accurate estimates in the future.

• What happens if my WRF run fails?

  This depends on the circumstances:

  • If the run fails at any time due to Cloudrun failure, you will be notified and credited for the full amount.
  • If the run fails prematurely due to WRF numerical instability or misconfiguration of the input data or namelist, you will be charged only for the fraction of the time used up to the failure, pro-rated to the second.

  We continuously work on improving Cloudrun's automatic detection of errors in input data and namelist files.

• When will I be billed?

  We bill your credit card on file on the 1st of every month. This includes all runs you've made, and your monthly disk usage cost for all stored output files. Any credit you have will be applied to your balance before your credit card is charged.

  You credit card information is secure and never stored on Cloudrun servers. All credit card transactions are securely processed using Stripe.

• Plans

  We currently offer only a free, pay-as-you-go plan. We will consider monthly and annual membership plans in the future.