AI API Cost Calculator

Calculate how much you’ll spend using ChatGPT or other AI APIs. Enter token usage and get instant cost estimates for OpenAI, Anthropic, and more.

Estimate Your Cost

Select Provider:

Select Model:

Input Tokens:

Output Tokens:

Estimated Cost: $0.0000

Tokens: Tokens are pieces of words AI models use to process text. Roughly 4 characters ≈ 1 token for English.

Examples: “Hello world” ≈ 3 tokens • “Write a blog post” ≈ 5 tokens • 1 page of text ≈ 500–800 tokens