Token Estimator

入门

Paste any prompt or document and get a quick token estimate — so you can budget context window and cost before you hit the API. All client-side; nothing leaves your browser.

2词

25字符

~3–6估算 token 数

≈ <1% of a 200K-token context window

只是大致感受（约为字符 ÷ 4，或词 × 1.33）。token 计数因模型而异——切勿使用其他模型的分词器。需要精确数字请使用 Anthropic 的 token 计数接口。

:::tip Why tokens matter Context limits and pricing are both measured in tokens (≈ ¾ of a word). Trimming what you send cuts both cost and latency. Deep dive in Tokens, Context & Pricing. :::

Tokens, Context & Pricing — how it's counted
API Cost Calculator — turn tokens into dollars
Token Economy — cut token cost like a power user

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