Cloud Commitment Optimiser.
Tune monthly spend, steady-state percentage and your 1‑year vs 3‑year, No‑Upfront vs All‑Upfront mix. See savings, lock-in risk, and breakeven utilisation update live. Discount rates reflect published Savings Plans / Reservations / CUDs as of 2026-05 (AWS, Azure, GCP).
Inputs
How the calculation works
Committed spend = monthly × steady-state% × coverage%. Effective discount is a weighted blend of 1y vs 3y and No-Upfront vs All-Upfront discount rates per provider (compute-class). On-demand portion is billed at full price; commitment portion at on-demand × (1−blended discount).
Lock-in risk rises with coverage and 3-year share. Breakeven utilisation = (commitment hourly cost) / (on-demand hourly cost) — below this, commitment loses money. Growth pulls coverage % down over time; the optimiser flags when re-rebalancing is overdue.
Discount rates are illustrative class averages from published 2026-05 documentation. Real-world rates vary by region, instance family, and account size. Use for shape and trade-off comparison, not for procurement commitment sizing — use your provider’s recommendations API for that.