E-MapReduce:Billing items and billing methods

Computing resources

Computing resources are billed based on your subscription plan or actual pay-as-you-go usage. The unit of measurement is CU.

1 CU = 1 vCPU + 4 GiB memory, the basic computing unit for EMR Serverless Spark. CU usage depends on data volume, computational complexity, data distribution, and whether you enable the Fusion engine. The Fusion engine does not increase costs and typically reduces job runtime by over 30%.

If your vCPU-to-memory ratio is below 1:4, the EMR Serverless Spark CU promotions page explains the CU conversion.

Processing capacity of 1 CU:

Model calls

Model calls are billed based on actual usage of built-in AI Center model services. The unit is thousands of Tokens.

Token estimation: • 1 Chinese character ≈ 1.5–2 Tokens • 1 English letter ≈ 0.25 Tokens • 1 English word ≈ 1.3 Tokens

• Alibaba Cloud Model Studio: ≈ 4–5 Tokens

• Hello World: ≈ 2 Tokens

For example, to mask 1,000 text records in a batch, use the following SQL:

select
  ai_query (
    concat(
      'Mask the following text according to these rules:
      1. Chinese names: Detect all Chinese names (2–4 characters). Keep the first and last characters. Replace middle characters with `*`.
      2. Mobile phone numbers: Detect Chinese mainland mobile numbers (11 digits, starting with 1). Keep the first 3 and last 4 digits. Replace the middle 4 digits with `****`.
      3. Physical addresses: Detect specific physical address information, such as province, city, district, street, and building number. Keep only the province, city, and district (county) levels. Replace all detailed street, building number, and community names after the district/county level with `***`.
      Output requirements:
      Return only the following three lines. Do not include explanations, original text, or other content:
      Name: [result]
      Mobile: [result]
      Address: [result]',
      user_info
    )
  )AS masked_text
from
  user_tbl
;

For example, a user_info value can be: “Mr. Li Si lives at No. xxx, Moumou Road, Zhangjiang Hi-Tech Park, Pudong New Area, Shanghai. His mobile number is 159********.”

The estimated token usage for one record is as follows:

Estimated token usage for 10,000 records:

Cache cluster

Cache clusters are billed based on the allocated cache quota and usage duration. The unit is GB. For billing rules, billing cycles, and regional pricing, see Data caching (pay-as-you-go).