🧮 AI Inference Cost Calculator
Calculate AI inference cost per request, per user, per successful task, and per month using token, GPU, hosting, and utilization assumptions.
Calculate AI Inference Cost
What this AI inference cost calculator calculates
Combine variable model usage with fixed infrastructure cost to estimate the true unit economics of an inference service.
Monitor utilization carefully. Self-hosting can appear cheap at full utilization but become expensive when GPUs sit idle or must be overprovisioned for peaks.
AI Inference Cost Calculator formula
Assumptions and limitations
The result is an engineering estimate based on the values entered. AI models, tokenizers, runtimes, accelerators, cloud services, and provider billing rules differ. Validate important decisions with measured data from the exact model, hardware, framework, and pricing plan you intend to use.
Worked example
A $3,000 monthly GPU cluster plus $500 platform cost serving 5 million requests costs $0.0007 per request before staff and networking.
How to use the result
Monitor utilization carefully. Self-hosting can appear cheap at full utilization but become expensive when GPUs sit idle or must be overprovisioned for peaks.
- Start with representative production assumptions rather than best-case demos.
- Run a low, expected, and high scenario to understand the range.
- Record model version, pricing date, hardware, precision, and workload details.
- Replace assumptions with observed p50 and p95 measurements after testing.
Common mistakes to avoid
- Dividing by peak capacity instead of actual completed requests.
- Ignoring idle capacity, networking, storage, observability, and engineering labor.
- Comparing self-hosted GPU cost against API token price without matching quality and throughput.
Frequently asked questions
What costs belong in fixed platform cost?
Include load balancers, databases, logging, monitoring, storage, support, and other non-token infrastructure.
How do retries affect unit cost?
Retries increase total inference work. Enter total executed requests or reduce the success rate to reflect the extra cost.
Can this compare API and self-hosting?
Yes. Calculate each scenario separately and compare cost per successful task.
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Methodology and privacy
This educational tool uses the formula and assumptions displayed on the page. Calculations run locally in your browser, and the page does not transmit the values you enter. Results are estimates rather than provider quotes, benchmark guarantees, financial advice, or capacity guarantees. Last methodology review: August 2, 2026.
Formula Explorer connections
Interpretation: This formula converts workload volume and unit rates into an operational cost or savings estimate. The result changes linearly with usage unless discounts, tiers or fixed charges are included. Assumption: Use rates from the same provider, model, region and billing period. Include retries, cached traffic, tool calls and overhead when they apply.