Billing Overview

Billing Model

smai.ai adopts a pay-as-you-go model, charging based on the actual number of Tokens used.

Token Description

Tokens are the basic units for AI models to process text:

• 1 English word ≈ 1-2 Tokens
• 1 Chinese character ≈ 1-2 Tokens
• Code and special characters may consume more Tokens

Cost Calculation

The cost of each API call = Input Token cost + Output Token cost

Total cost = (Input Token count × Input price) + (Output Token count × Output price)

Viewing Costs

The API response includes Token usage:

{
  "usage": {
    "prompt_tokens": 100,      // Input Tokens
    "completion_tokens": 50,   // Output Tokens
    "total_tokens": 150        // Total Tokens
  }
}

Account Balance

• Log in to api.smai.ai to check your account balance
• If the balance is insufficient, the API will return an error
• It is recommended to set up balance alerts for timely recharges

Next Steps