Bug with Provisioned Throughput in Pricing API for AmazonEC2

Question

I executed the command below and noticed that the description states the price is $0.04 per provisioned MiBps-month of gp3 but the pricePerUnit is listed as 40.96. I have highlighted the discrepancy in the screenshot. 
```
aws pricing get-products --service-code AmazonEC2 --format-version aws_v1 --max-results 20 \
--filters '[{"Field": "location", "Value": "US East (Ohio)", "Type": "TERM_MATCH"}, {"Field": "volumeApiName", "Value": "gp3", "Type": "TERM_MATCH"}]'
```
![Enter image description here](/media/postImages/original/IMaKLRGHodRPaqcAKU9-TW1g)

Answer

Absolutely, you've got it right, the price noted in the `description` should indeed match the `pricePerUnit`. The discrepancy might be an error, possibly a glitch in the API's response formatting.

#### Example
```json
{
  "FormatVersion": "aws_v1",
  "NextToken": "WGDY7ko8fQXdlaUZVdasFQ==:RVSagyIFn770XQOzdUIcO9BY6ucBG9itXAZGZF/zioUzOsUKh6PCcPWaOyPZRiMePb986TeoKYB9l55fw/CyoMq5ymnGmT1Vj39TljbbAlhcqnVfTmPIilx8Uy5bdDaBYy/e/2Ofw9Edzsykbs8LTBuNbiDQ+BBds5yeI9AQkUepruKk3aEahFPxJ55kx/zk",
  "PriceList": [
      "{\"product\":{\"productFamily\":\"Storage\",\"attributes\":{\"storageMedia\":\"SSD-backed\",\"maxThroughputvolume\":\"320 MB/sec\",\"volumeType\":\"Provisioned IOPS\",\"maxIopsvolume\":\"20000\",\"servicecode\":\"AmazonEC2\",\"usagetype\":\"APS1-EBS:VolumeUsage.piops\",\"locationType\":\"AWS Region\",\"location\":\"Asia Pacific (Singapore)\",\"servicename\":\"Amazon Elastic Compute Cloud\",\"maxVolumeSize\":\"16 TiB\",\"operation\":\"\"},\"sku\":\"3MKHN58N7RDDVGKJ\"},\"serviceCode\":\"AmazonEC2\",\"terms\":{\"OnDemand\":{\"3MKHN58N7RDDVGKJ.JRTCKXETXF\":{\"priceDimensions\":{\"3MKHN58N7RDDVGKJ.JRTCKXETXF.6YS6EN2CT7\":{\"unit\":\"GB-Mo\",\"endRange\":\"Inf\",\"description\":\"$0.138 per GB-month of Provisioned IOPS SSD (io1)  provisioned storage - Asia Pacific (Singapore)\",\"appliesTo\":[],\"rateCode\":\"3MKHN58N7RDDVGKJ.JRTCKXETXF.6YS6EN2CT7\",\"beginRange\":\"0\",\"pricePerUnit\":{\"USD\":\"0.1380000000\"}}},\"sku\":\"3MKHN58N7RDDVGKJ\",\"effectiveDate\":\"2018-08-01T00:00:00Z\",\"offerTermCode\":\"JRTCKXETXF\",\"termAttributes\":{}}}},\"version\":\"20180808005701\",\"publicationDate\":\"2018-08-08T00:57:01Z\"}"
  ]
}
```

Answer

Hello,

The gp3 volume pricing has two components - capacity pricing and provisioned throughput pricing. The capacity pricing is $0.04 per GiB-month as you mentioned. The provisioned throughput pricing has two parts - $0.005 per provisioned IOPS over 3,000 IOPS and $0.04 per provisioned MiB/s throughput over 125 MiB/s.

In the AWS CLI command output, the `pricePerUnit `field shows the combined cost of 1 MiBps of provisioned throughput, which works out to $0.04 + $0.005*(IOPS/125) = $0.4096.

Answer

From Manav G with AWS Support:

The description states the value of provisioned throughout in terms of MiBps-month. However, if you notice the ‘unit’ for the product, it is ‘GiBps-mo’ and accordingly the ‘pricePerUnit’ becomes 40.96 USD.

~~~~~~
# Description
"description\":\"$0.04 per provisioned MiBps-month of gp3 - US East (Ohio)\"
.
.
# Unit of the product
"unit\":\"GiBps-mo\"
.
.
# Price per unit of the product
pricePerUnit\":{\"USD\":\"40.9600000000\"
 ~~~~~~

Hence, the price of provisioned throughput in MiBps-month is 0.04 USD, which equates to 40.96 USD in GiBps-month. Therefore, this is not a bug and the product unit is GiBps-month.

Bug with Provisioned Throughput in Pricing API for AmazonEC2

Example

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