ruchira
// AI TOOL

LLM token & cost calculator

Paste a prompt to count tokens, then compare the cost and context fit of Claude, GPT and Gemini models per request, per day and per month.

  • Free
  • No sign-up
  • Private: runs in your browser
// HOW IT WORKS

4 steps, no sign-up.

Built and maintained by Ruchira Sachinthana. Spotted a bug or want a feature? Tell me.

  1. 01Paste your system prompt and a typical user message, or type token counts directly.
  2. 02Set the expected output length and how many requests you make per day.
  3. 03Compare models by cost per request and per month, and check they fit the context window.
  4. 04Adjust any price if your provider has changed it or you have a discount.
// FAQ

LLM cost calculator: questions, answered.

Something else? Ask on WhatsApp.

GPT models use the exact o200k tokenizer. Claude and Gemini use their own tokenizers, so their counts are estimates that are usually within about 10–15%.

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// CUSTOM TOOLS

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