@anthropic-ai/tokenizer
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This package provides a convenient way to check how many tokens a given piece of text will be.
npm install --save @anthropic-ai/tokenizer
# or
yarn add @anthropic-ai/tokenizer
import { countTokens } from '@anthropic-ai/tokenizer';
function main() {
const text = 'hello world!';
const tokens = countTokens(text);
console.log(`'${text}' is ${tokens} tokens`);
}
main();
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.
The following runtimes are supported:
import { countTokens } from "npm:@anthropic-ai/tokenizer".If you are interested in other runtime environments, please open or upvote an issue on GitHub.
FAQs
Claude tokenizer
We found that @anthropic-ai/tokenizer demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
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