🧮 Chapter 07 · Cost Calculator

Token Billing Calculator

Cloud API vs Microsoft Foundry Local — see where the money goes. Compare GPT-4o, GPT-5, DeepSeek, and Qwen against $0/month local inference.

Cloud API Cost Calculator

Compare API billing vs Foundry Local — see your annual savings

GPT-4o

$0.0050 / 1K

Cloud

GPT-5

$0.0150 / 1K

Cloud

DeepSeek

$0.0014 / 1K

Open API

Qwen

$0.0004 / 1K

Open API

GPT-4o$0.0050 per 1,000 tokens

Tokens per request (prompt size)

3,000

Number of users

1,000

Requests per user per day

Tokens / day

30M

total tokens

Cost / day

$150

at $0.005 / 1K

Cost / month

$4,500

30 days

Weekly Cost Comparison

GPT-4o Foundry Local

☁ GPT-4o (Cloud)

$4,500 / mo

billed per token

💻 Foundry Local

$0 / mo

hardware already paid

Annual savings: $54,000

Get started

winget install Microsoft.FoundryLocal
foundry model run phi-4-mini
✓ $0/month · <50ms · data stays local