About this calculator

A small, independent tool for comparing the real monthly cost of LLM APIs.

How prices are sourced

Every rate is pulled from the provider's official pricing page and carries a verification date (last checked 2026-11-07). Prices change often — providers announce increases and promotional rates that expire — so this page tells you when each rate was last confirmed.

What the estimate includes

The calculator multiplies your input and output token volume by each model's list price, applying your cache-hit rate to input tokens where the provider publishes a cached-input price. It does not include batch discounts (typically 50%), long-context surcharges, or enterprise agreements.

How to make the numbers real

Don't guess your token counts. Every API response includes a usage block with exact input and output tokens. Pull your real averages from your dashboard — chat apps resend conversation history each turn, so average input often grows with conversation length and exceeds your guess.