ai
AI API Cost Calculator
Estimate OpenAI and Claude-style API costs from input/output tokens and request volume. Plan budgets before you ship.
Ballpark only — vendor prices change. Pair with the token counter for prompt size.
$0.0300Input cost
$0.0300Output cost
$0.0600Total
$0.000600Per request
How to estimate LLM API spend
API bills scale with tokens and traffic. Use this calculator with your expected prompt and completion sizes to forecast cost per day or per feature launch.
Steps
- Select a model price tier closest to what you use.
- Enter average input and output tokens per request.
- Set how many requests you expect.
- Read total cost, input/output split, and cost per request.
Tips
- Cache repeated prompts and shorten system instructions to cut input tokens.
- Cheaper models are often enough for classification and drafts.
- Prices change — treat results as planning estimates, not invoices.
Frequently asked questions
Are these official live prices?
They are approximate list prices for planning. Always confirm on the provider’s pricing page before budgeting.
Does this include image or fine-tuning fees?
No. It focuses on text input/output token pricing for chat-style APIs.
How do I know my token counts?
Use our AI Token Counter on sample prompts, or log usage from your API dashboard.