---
title: TCO calculator
date: 2026-09-07T00:00:00+02:00
author: Hannes Heckel
canonical_url: "https://www.fast-lta.de/en/products/silent-ai-pro/tco-calculator"
section: Product Pages
---
Cloud costsSubscription pricePer monthPer year

Per user, as your provider bills it.

Light usageusers

€/ month

Average usageusers

€/ month

Heavy usage / automationusers

€/ month

Cloud bill**—**

UsageDerive usage from the user mixManually enter usage

Enter usage asPer user / dayTotal / year

Tokens per user (daily)tokens

Prompt plus answer. Retrieval-heavy work spends most of this on context.Light 50kStandard 250kHeavy 800k

Total token usage (yearly)tokens

EnergyElectricity price€/ kWh

Your commercial rate, including grid fees and levies. Drives the appliance's running cost in the break-even math.

Other annual hosting costs€/ year

Anything the model does not cover — rack space, cooling, UPS losses, admin time. Charged evenly month by month on top of the appliance's running cost.

Load shapePeak concurrent users12%Share of staff sending a request in the same moment. Interactive assistants usually peak at 10–20% of licensed staff.

We analyse long documents (~258K-token context)Deep-context jobs in parallel%

ServiceService termyears

HorizonComparison horizon3 years

Reset to defaults

ReportPrepared for

Prepared by

Create PDF

Cloud bill for this usage

## Paying per token

Total token usage

—

Cost per token

—

Cost per user

—

Cumulative spend

## Where the lines cross

The cloud line starts at zero and never flattens. An appliance line starts high and rises slowly. The crossing point is the break-even month.

System profiler

## Which tier fits

3-year horizon · scale 0–36 mo

Fit is judged against measured benchmark capacity where it exists, and against a conservative estimate where the configuration was not part of the campaign. Secondary models are OCR, embedding and text-to-speech. Select a row for the full calculation.

ConfigurationGood fitSupported featuresBreak-evenMoney saved

Beyond the price

## Why on-premises, regardless of cost

These hold at every tier and never show up in the break-even math above.

**100% secure**Data never leaves a boundary you control.

**100% made in Germany**Designed and built in Germany, to German engineering and privacy standards.

**Reliable service and care**Direct support and maintenance from the team that built the hardware.

**No cost uncertainties**One fixed price. No surprise invoices from usage spikes or rate changes.

**No kill switch, nothing leaving your premises**Runs independent of any vendor's cloud. No remote shutdown, no data transmitted off-site.