Package Exports

@anthropic-ai/tokenizer
@anthropic-ai/tokenizer/dist/cjs/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@anthropic-ai/tokenizer) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Anthropic TypeScript Tokenizer

This package provides a convenient way to check how many tokens a given piece of text will be.

Installation

npm install --save @anthropic-ai/tokenizer
# or
yarn add @anthropic-ai/tokenizer

Usage

import { countTokens } from '@anthropic-ai/tokenizer';

function main() {
  const text = 'hello world!';
  const tokens = countTokens(text);
  console.log(`'${text}' is ${tokens} tokens`);
}
main();

Status

This package is in beta. Its internals and interfaces are not stable and subject to change without a major semver bump; please reach out if you rely on any undocumented behavior.

We are keen for your feedback; please email us at support@anthropic.com or open an issue with questions, bugs, or suggestions.

Requirements

The following runtimes are supported:

Node.js version 12 or higher.
Deno v1.28.0 or higher (experimental). Use import { countTokens } from "npm:@anthropic-ai/tokenizer".

If you are interested in other runtime environments, please open or upvote an issue on GitHub.