
Claude Pro vs Max vs API: What the Plans Actually Cost a Heavy User
Anthropic sells Claude in multipliers and the API in tokens. Converted into one unit: where Pro, Max 5x and Max 20x stop being the cheap option.
We use cookies to keep you signed in. Cookie policy
We use cookies
CalculatorAI uses cookies to keep you signed in and remember your preferences. Optional cookies help us understand how the site is used. Cookie policy
What AI actually costs once you run it — API bills, agent loops, tokens, and whether a subscription or a key is cheaper for the way you work.
Tools these guides use

Anthropic sells Claude in multipliers and the API in tokens. Converted into one unit: where Pro, Max 5x and Max 20x stop being the cheap option.

A support reply priced on five models, a system prompt resent 10,000 times, an agent loop and reply length — the four numbers that decide an AI bill.

Five MCP servers add ~55,000 tokens to every Claude request. Here is what that costs a month, what the popular servers do, and the three fixes that work.