AI Token Cost Calculator

Estimate tokens, then compare per-request and per-month API cost across models. All prices editable.

Token counts are an estimate (~4 chars or ~0.75 words per token), not any specific model's exact tokenizer. Default prices are reference points that may be outdated — edit them to match your provider's current published rate.

1. Your text (optional)

Estimated tokens: 0

2. Token counts & scale

Input tokens per request

Output tokens per request

Requests per day

Days per month

3. Compare models

Model	Input $/1M	Output $/1M	Cost / request	Cost / month

Cheapest option is highlighted.

About this tool

LLM APIs bill by tokens, split into input and (usually pricier) output rates per million tokens. Estimate a request's cost, then project it to a monthly bill at your call volume.

Why the numbers are estimates

Each model family tokenizes differently, so no single formula matches every vendor exactly — this uses a transparent approximation instead of faking precision. Default prices are reference points that go stale; every rate is a plain editable number, so paste in your current published rate and the cost columns recalculate instantly.