AI Token Calculator

Calculate AI API costs across 16+ models (GPT-4o, Claude, Gemini, Llama) with token estimation, batch pricing, and monthly budget projections. Free, fast, and private — runs entirely in your browser.

Paste Your Text (or a sample prompt)

0 characters0 words~0 estimated input tokens

Expected Output Multiplier

x input tokens = ~0 output tokens

Requests per Day (for monthly estimate)

Primary Model (highlighted in comparison)

Enter text or token counts above to calculate costs across all models.

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How to Use AI Token Calculator

1Enter your text or estimated token count.
2Select AI models to compare.
3View per-request and monthly cost estimates.
4Adjust volume to project your API budget.

Frequently Asked Questions

What AI models are supported?▾

16+ models including GPT-4o, GPT-4o-mini, Claude 3.5 Sonnet, Claude 3 Opus, Gemini Pro, Llama 3, and more with current pricing.

How are tokens estimated?▾

We use the standard approximation of ~4 characters per token for English text. Actual token counts may vary by model and content type.

Is this calculator free?▾

Yes, completely free with no sign-up required. All calculations run in your browser.

Does it include batch pricing?▾

Yes, you can compare costs across different request volumes and see monthly budget projections.

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About AI Token Calculator

NexTool's AI Token Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.