AI dev

Token counts and the cost of a prompt before you send it.

01Tools2026-10-16Updated

AI token counter

Free LLM token counter and API cost calculator. Paste text to count tokens with OpenAI's tokenizers and estimate input and output cost across GPT, Claude, Gemini, and other models.

  • Paste your prompt or file
  • Pick models and expected output
  • Compare cost per request and per month
Open AI token counter
In

Prompt text or a text file, selected models, expected output tokens, requests per day, and a cached-input share.

Out

Token, character, and word counts, a token boundary preview, and a cost table per model.

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