AI Tool Cost Calculator Online (100% Free & Private)
Free ai tool cost calculator that runs in your browser. No sign-up, no install.
LLM API Cost Calculator
Price table ($ per 1M tokens)
Usage
Words are converted at about 0.75 words per token, which is an estimate for typical English text. Actual counts depend on the model's tokenizer, so code, other languages and numbers differ. That gives about 667 input and 400 output tokens per request here. Use your provider's token counter for real numbers.
| Model | Per request | Per day | Per month |
|---|---|---|---|
| Example model A (replace) | $0.00227 | $2.27 | $68.01 |
| Example model B (replace)lowest | $0.00023 | $0.23 | $6.80 |
Math: tokens ÷ 1,000,000 × price, for input and output separately, then × requests per day × days. It ignores caching or batch discounts, free tiers, tool or image charges, taxes and retries.
What this tool does and who it is for
This calculator turns per-million-token prices into a cost per request, per day and per month. You enter the prices yourself in an editable table, plus tokens (or words) per request and requests per day.
The two starting rows are placeholder examples with round numbers, not real model prices. Replace them with current rates from the provider's pricing page.
Words convert at about 0.75 words per token. That is an estimate for typical English. Use your provider's token counter for exact numbers.
Official Formula / Technical Standard
Real-World Worked Scenario
Define your objective and audience to generate tailored prompt templates and structured text outputs.
When people use it
Budgeting a chatbot
Enter average prompt and reply size and daily volume.
Comparing two models
Add each model's published rates and compare the monthly line.
Sensitivity checks
Double the output size and see the effect.
Pitching a pilot
Show a ballpark with your own numbers.
Notes for US users
- Prices are in US dollars. Sales tax or VAT may apply.
- Set a spending limit in your provider's dashboard.
- AI API costs are generally business expenses. Ask your accountant how to categorize them.
Limits and what to double-check
- •No live prices and none built in. Everything depends on what you enter.
- •Ignores caching and batch discounts, free tiers, images, tool calls and retries.
- •Words to tokens is an estimate.
Expert Best Practices & Common Pitfalls
Recommended Best Practices
- •Specify clear roles, background context, and explicit output formatting in your instructions.
- •Set constraints on tone, length, and style to avoid generic AI responses.
- •Always verify factual claims and citations generated by language models.
Common Mistakes to Avoid
- •Giving vague, one-sentence instructions and expecting expert-level outputs.
- •Trusting AI-generated factual data, dates, and numbers without independent verification.
- •Pasting confidential business data or proprietary source code into public AI models.
Features & Security Architecture
- 100% Client-Side: Zero server uploads ensure complete privacy and data confidentiality
- Fast Results: Processing happens on your own device, so there is no upload or server queue to wait for
- No Sign-Up Required: Completely free to use with no daily usage caps or account requirements
- Works on All Devices: Fully responsive across desktop, tablet, and mobile browsers
Frequently Asked Questions
How does the AI Tool Cost Calculator work?▼
The AI Tool Cost Calculator runs 100% inside your web browser using modern client-side JavaScript. It performs calculations, conversions, and document processing locally on your device without sending any data to external servers.
Is this ai tool cost calculator completely free to use?▼
Yes. This tool is completely free with no usage limits, no subscriptions, and no registration required.
Is my data private when using the AI Tool Cost Calculator?▼
Yes. Because all operations execute locally on your computer or phone, your inputs, documents, and data never leave your browser.
Are these prices current?▼
The starting rows are placeholders. Enter real prices from the provider.
How are tokens estimated from words?▼
About 0.75 words per token, which is a rough average for English.
Why separate input and output prices?▼
Providers usually charge different rates for each.
Does it include subscriptions?▼
No. It covers pay-per-token API pricing only.