EICS
Inference Cost Swaps
Lock your inference costs for 1, 3, or 6 months. A fixed-for-floating swap settled against the EICI.
How it works
1. You have exposure
You run 10M tokens/month of coding workloads. The EICI says $8.34/M today. Your monthly inference bill fluctuates with provider pricing changes.
2. You enter a swap
Lock in $8.34/M fixed for 3 months. Your counterparty takes the other side. The EICI is the floating reference rate — like SOFR for interest rates, but for inference.
3. Cash settlement
At expiry, if EICI rose to $11/M, your counterparty pays you the difference. If it fell to $6/M, you pay. Either way, your effective cost was locked at $8.34.
Settlement
PnL = (Floating - Fixed) × Notional / 1,000,000
Prices rose (fixed payer profits)
Fixed: $8.34 · Floating: $11.00 · Notional: 10M
PnL = ($11.00 - $8.34) × 10 = +$26.60
Prices fell (fixed payer loses)
Fixed: $8.34 · Floating: $6.00 · Notional: 10M
PnL = ($6.00 - $8.34) × 10 = -$23.40
Price a swap
POST https://api.exostream.ai/v1/swap
{
"taskType": "coding",
"tenor": "3M",
"notionalTokens": 10000000,
"priceType": "sync"
}
// Response
{
"fairFixedRate": 7.312, // $/M tokens — your locked rate
"greeks": {
"delta": 0.94, // price sensitivity
"vega": 12.8, // volatility sensitivity
"theta_greek": -0.28 // daily time decay
},
"notionalUsd": 73.12,
"tenorMonths": 3
}Reference Implementations
Template contracts for on-chain settlement, SDKs, and legal frameworks.