REAL-TIME TOKEN ECONOMICS

LLM Cost Calculator

An LLM cost calculator estimates the dollar cost of an AI request from the model's pricing rates and its token usage. VibezCheck provides a model-aware calculator that runs locally from its bundled pricing catalog with BigInt nano-cent math.

Select Model

Input Tokens (Prompt)1,000 tok

Output Tokens (Completion)300 tok

Cached Input Tokens (Prompt Cache Discount)0 tok

Customer Markup Multiplier1.30× (+30%)

GPT-4o mini

OpenAI

Input Cost:$0.000150

Output Cost:$0.000180

Total Provider Cost:$0.000330 USD

Customer Billed Price:$0.000429

Gross Profit:+$0.000099 (23.1% margin)

Verified rate card:2026-09-17

Pricing source:OpenAI API Pricing

Provider pricing shown here was verified against public vendor rate cards. Confirm against provider sources for regional or batch discounts.

Common Cost Calculations & Formulas

How much does 1,000 GPT tokens cost?

For GPT-4o-mini: 1,000 input tokens cost $0.00015, and 1,000 output tokens cost $0.00060. A standard 1k in / 300 out exchange costs $0.00033 USD.

Cost = (1,000 × $0.15/1M) + (300 × $0.60/1M) = $0.00033

How much does 1 Million tokens cost?

DeepSeek R1 input costs $0.55/1M, Claude 3.5 Sonnet costs $3.00/1M, and GPT-4o costs $2.50/1M. Prompt caching discounts lower repetitive input costs by up to 90%.

Effective Input = (Uncached × Rate) + (Cached × DiscountedRate)

How do you calculate OpenAI token cost?

Multiply prompt tokens by the model input rate, cached tokens by the cache rate, and completion tokens by output rate:

Total = (Prompt/1M × $2.50) + (Completion/1M × $10.00)

How much does an AI agent run cost?

An autonomous agent making 8 LLM calls with 3 tool executions typically uses ~24,000 prompt tokens and ~3,500 output tokens, costing between $0.04 and $0.35 USD depending on the model tier.

Calculate costs automatically in code

VibezCheck executes this financial formula in-process with 0ms added latency.

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Common Cost Calculations & Formulas

Know the cost before it becomes the bill.