token-counter

install

npm

npm install token-counter

yarn

yarn add token-counter

Feature

• Count the number of tokens from the text
• Calculate the price based on the number of tokens
• Price calculation according to the model in use
• Support for LangChain Callback
• Calculation of amounts in each country's currency
• Obtaining usage details
• OnChange event handler when adding
• Avoid counting in mock use option

Usage

Count tokens from text

import { TokenCounter } from "token-counter";

const tokenCounter = new TokenCounter();

const prompt = "example text";

tokenCounter.addGpt3_4kInputText(prompt);

// Tapping the API of Gpt-3.5-turbo (4k model)

tokenCounter.addGpt3_4kOutputText(prompt);

Use for LangChain Callback

import { TokenCounter } from "token-counter";
import { TokenCounter3_4kCallback } from "token-counter/langchain";

const tokenCounter = new TokenCounter();

new ChatOpenAI({
  modelName: "gpt-3.5-turbo-0613",
  temperature: 0,
  callbacks: [new TokenCounter3_4kCallback(tokenCounter)],
});

Get prices in your country's currency

console.log(tokenCounter.jpyPrice);

Obtain a statement of use

// True must be passed as the first argument when initializing tokenCounter
const tokenCounter = new TokenCounter(true);

tokenCounter.addGpt3_4kInputText(prompt);

// Obtain a statement of use
console.log(tokenCounter.receipt);

Available Methods

Counting based on text

• addGpt3_4kInputText
• addGpt3_4kOutputText
• addGpt3_16kInputText
• addGpt3_16kOutputText
• addGpt4_8kInputText
• addGpt4_8kOutputText
• addGpt4_32kInputText
• addGpt4_32kOutputText
• addAda_v2Text

Counting based on tokens

• addGpt3_4kInputTokenCount
• addGpt3_4kOutputTokenCount
• addGpt3_16kInputTokenCount
• addGpt3_16kOutputTokenCount
• addGpt4_8kInputTokenCount
• addGpt4_8kOutputTokenCount
• addGpt4_32kInputTokenCount
• addGpt4_32kOutputTokenCount
• addAda_v2TokenCount

LangChain Callback

• TokenCounter3_4kCallback
• TokenCounter3_16kCallback
• TokenCounter4_8kCallback
• TokenCounter4_32kCallback

Available Properties

Get number of tokens

• tokenCounter.tokens

Get price in USD

• tokenCounter.price

Retrieve usage statements

• tokenCounter.receipt

Supported Currency Properties

• tokenCounter.jpyPrice