Why does OpenAI's pricing carry an extra disclaimer?

OpenAI's own pricing page blocked this tool's automated verification, so those specific figures were cross-referenced from third-party trackers rather than fetched directly — double-check them at openai.com/api/pricing/ before relying on them.

Are these prices current?

As of the 'last verified' date shown. Provider pricing changes often — always check the provider's own page before committing to a budget.

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AI API Cost Calculator

Estimate LLM API spend from token counts and current published per-model pricing.

🔒 Runs entirely in your browser — nothing here is ever uploaded

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About the AI API Cost Calculator

Estimates the dollar cost of an LLM API call from input/output token counts and each provider's current published per-token pricing.

100% Free Runs in Your Browser No Sign-Up Required

How to use it

Select a model.
Enter expected input and output tokens per call.
Enter number of calls for a batch/volume total.

Formula

Cost = (input tokens ÷ 1,000,000 × input price) + (output tokens ÷ 1,000,000 × output price), × number of calls

Worked example

Claude Sonnet 5 ($2/$10 per million input/output tokens), 1,000,000 input + 500,000 output tokens, 1 call = $2.00 + $5.00 = $7.00.

Interpreting your result

Prices as of 2026-09-05 — LLM API pricing changes frequently (new models, promotional rates, volume discounts not modeled here). Verify current rates at the provider's own pricing page before budgeting.

Recommendations

• Batch API and prompt-caching discounts (where offered) aren't modeled — check the provider's docs if you use those.
• Compare providers side-by-side using the bar chart below the results.

Frequently asked questions

No — it's pure arithmetic on published list prices. It never makes an API call.