Token Estimator
Iniciante
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.
Token estimate200K window
11palavras
67caracteres
~15–17tokens estimados
≈ <1% of a 200K-token context window
Apenas uma noção aproximada (~caracteres ÷ 4, ou palavras × 1.33). A contagem de tokens é específica de cada modelo — nunca use o tokenizador de outro modelo. Para números exatos, use o endpoint de contagem de tokens da Anthropic.
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