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@cyberlangke/tokkit

v1.11.0

Published

A tokenizer library for counting tokens.

Readme

@cyberlangke/tokkit

tokkit 就是用来分词和计 token 数的库。

支持的模型

使用方法

npm install @cyberlangke/tokkit
import { countTokens, encode, decode } from "@cyberlangke/tokkit"

// 直接按 family 名编码文本。
const ids = await encode("Hello, world!", "qwen3.5", {
  addSpecialTokens: false,
})

// 再把 token ids 还原成文本。
const text = await decode(ids, "qwen3.5")

// 统计 token 数量。
const count = await countTokens("Hello, world!", "qwen3.5", {
  addSpecialTokens: false,
})

console.log(ids, text, count)
import { getTokenizer } from "@cyberlangke/tokkit"

// 用 family 名获取 tokenizer。
const familyTokenizer = await getTokenizer("qwen3.5")

// 用具体模型名获取同一个 tokenizer family。
const modelTokenizer = await getTokenizer("Qwen/Qwen3.5-27B")

console.log(familyTokenizer === modelTokenizer) // true