Token Estimator

Beginner

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.

Paste some text here to see roughly how many tokens it is.

12words

58characters

~15–16estimated tokens

≈ <1% of a 200K-token context window

A rough feel only (~chars ÷ 4, or words × 1.33). Token counts are model-specific — never use another model's tokenizer. For exact numbers use Anthropic's token-counting endpoint.

:::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. :::

Next

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