FOR CAPACITY OWNERS

Estimate Spot revenue from available capacity.

Your fleet is sized for peak demand. When customer traffic eases, Spot can route more work to capacity you have available. Compare your current run rate with the additional revenue you could earn — while keeping your public rate as the price ceiling.

DAILY CAPACITY

— available across the day

Customer workload
Available to Spot

Illustrative Tue–Thu demand pattern based on public internet usage. Dashed line shows provisioned capacity.

GPU system

Chip count

What you sell

Throughput per chip (tok/s)

Spot price as % of your list

Assumes fills at 50% of rate card, with your public list (—) as the maximum. Existing customer demand keeps priority while Spot fills available capacity.

Do these estimates reflect your current economics? Yes, use these assumptions I want to adjust them

Use your own figures wherever available. A familiar baseline makes the projected lift more useful.

Input tokens per output token

Rate card, input ($/M)

Rate card, output ($/M)

Peak utilisation of nameplate (%)

Cost build-up, per chip

System capex ($)

Scale-out networking ($)

Board draw (kW)

PUE

Electricity ($/kWh)

Colo ($/kW-month)

Economic life (years)

Cost of capital (%)

Spare fill rate (%)

Maker fee (bps)

Timezone offset (hours)

Egress ($/M tokens)

Egress defaults to 2 KB/token at $0.09/GB. On-net or settlement-free peering can be 0.

Fleet remains powered between workloads — incremental cost is loaded-minus-standby power plus egress Weight Saturday and Sunday separately (5 + 2)

CURRENT BUSINESS

Estimated current economics

Your list price, blended—

Cost per million at full load—

How full you run, on average—

Revenue this year at list—

Power + colo—

Gross margin after capital—

Margin if you ran 100%—

ROIC (cash earnings / capex)—

POTENTIAL WITH SPOT

Additional revenue from available capacity

Current annual revenue —

Potential Spot revenue —

ROIC — → —

Assumed Spot print—

Revenue lift—

Blended gross margin—

Margin on Spot volume—

ROIC lift—

Hardware cost remains with your current business. This projection adds incremental power and egress for Spot volume and keeps your public rate as the ceiling.

How this works

Simple uses published InferenceX chip-hour costs and OpenRouter paid prices. Advanced lets you adjust capex, power, colo, and workload mix. ROIC is cash earnings divided by invested capital. Every calculation runs in your browser.

Sources

Throughput and $/chip-hour: InferenceX (SemiAnalysis), GLM-5.2 Agentic, 19 Aug 2026. Market: OpenRouter weighted-average paid, 21 Aug 2026. Egress default: 2 KB/token at $0.09/GB. Demand shape: public internet-exchange diurnal used as a proxy. Illustrative — see disclosures.