#461 · OpenAI Tool

OpenAI Token Calculator

Estimate OpenAI token costs with input, output, cached tokens, request count, and editable model pricing.

Calculator

Editable OpenAI assumptions
model
$
$
$
tokens
tokens
tokens
req

Pricing reference date: 2026-06-19. Pricing fields are editable because API rates can change.

Ad space

Growth forecast

ScenarioMonthly Cost
Current usage—
+25% growth—
+50% growth—
+100% growth—
Annual projection—
3-year projection—

Token Breakdown

MetricValue

How to use this calculator

  1. Choose an OpenAI model preset or enter your own pricing.
  2. Adjust usage assumptions such as tokens, requests, users, retries, or storage.
  3. Check the monthly, annual, and scaling estimates before making product decisions.

What the result means

The total cost combines regular input tokens, cached input tokens, and output tokens. Cached tokens can materially lower cost when prompts repeat.

Total = ((input - cached) × input price + cached × cached price + output × output price) / 1,000,000

This is a planning estimate, not a billing guarantee. Confirm current OpenAI prices and your actual usage dashboard before committing budget.

Example calculation

If you send 1,000,000 input tokens, 250,000 output tokens, and cache 200,000 input tokens, the calculator shows the resulting total, request-level cost, and savings.

Tips for better results

  • Cache repeated system prompts where possible.
  • Reduce verbose outputs.
  • Track output tokens separately from input tokens.

FAQ

What is this calculator used for?

This calculator estimates OpenAI API usage, cost, capacity, or system economics based on the values you enter. It is designed for planning, comparison, and rough budgeting before production deployment.

How is the result calculated?

The calculator multiplies usage volume by editable pricing inputs, then adds any fixed, storage, tool, retry, or platform costs that apply to that specific calculator.

Are OpenAI prices included?

Default pricing fields are included as editable presets. Because API pricing can change, always check the official OpenAI pricing page before using the result for a budget or customer quote.

How accurate is the estimate?

The estimate is only as accurate as your input assumptions. Real usage may vary because prompts, outputs, retries, caching, tools, and user behavior can change significantly.

How can I reduce costs?

Common cost reductions include using a smaller model, shortening output length, caching repeated prompts, reducing retrieved context, batching background jobs, and monitoring usage by project.

What are common mistakes?

Common mistakes include ignoring output tokens, forgetting retry or regeneration costs, using average requests that are too low, and assuming cached pricing applies to every input token.

When should I use this calculator?

Use it before launching an OpenAI-powered feature, comparing models, estimating SaaS margins, planning RAG storage, or deciding whether a workflow is economically viable.

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