AI Tools Calculators
Token counts, API cost modeling and prompt length planning.
3 free ai tools calculators — no signup, mobile-friendly, formulas verified by our editorial team.
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AI API Cost Calculator
Per-request, monthly and annual LLM API costs including prompt caching savings.
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AI Token Calculator
Estimate GPT-style token counts for any text and check context-window fit.
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Prompt Length Calculator
Check whether your system prompt, turns and reply fit the context window.
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