GPT Calculator API

Use this Free API to calculate token count and cost of your GPT Prompt. Or use the Online Tool.

This is a Free API not intended to be used in production. Please use the official OpenAI pricing rates and tokenizer packages for the most accurate results.

OpenAI Pricing

Example cURL Request

curl https://www.gptcalculator.xyz/calculator 

  -H "Content-Type: application/json" 

  -d '{ 

    "promptText": "my prompt text", 

    "model": "gpt-4" 

  }'

Example Response

{ 

  "tokenNum": 3, 

  "rate": 0.03 

}

This is the archived version of the tool. The endpoint above is no longer served: the token count and the cost are now calculated in your browser on the Online Tool page.