Settlement-grade compute prices, audit-ready
FLOPS publishes independent reference prices for GPU compute the same way Platts publishes oil and ICE publishes power. Every value pins to a methodology version, carries a cryptographic recompute receipt, and meets IOSCO Principle 7 (k-anonymity ≥ 3). Suitable for mark-to-market, covenant true-ups, and contract pricing.
| SPEC | What it means |
|---|---|
| Methodology pin | Every published value carries a methodology version (e.g. flci-h100@v0.9). Methodology changes never silently rewrite history — the new version pins at the change moment. |
| k-anonymity ≥ 3 | Settlement-grade values reflect at least 3 independent source quotes. Below-3 ticks exist in the inspection table but never appear on the published surface. |
| Recompute receipt | Each value emits an SHA-256 observations_hash + computation_proof. Verifier is one request away — GET /v1/audit/recompute/{run_id}. |
| MAD trim | Median Absolute Deviation outlier suppression on the source vector before the weighted median. Single bad source can't move the published value. |
| Source weighting | 5-tier authority weighting (Tier 1 first-party APIs → Tier 5 scraped aggregators). Weights documented in the methodology version. |
| FX pinning | Non-USD sources convert via the daily Frankfurter ECB reference rate, pinned to the publication date. |
| Tier discipline | Public surface is LIVE-only. SEED-mixed indices live in the partner-tier catalog and carry a clear tier chip. No silent reference fallbacks. |
The fastest path for treasury, FP&A, and risk teams. Six formula functions cover lookup, time-series, methodology citation, and the audit verifier link.
Install
# Excel for Mac / Windows
Insert → Get Add-ins → Manage → Upload My Add-in →
https://app.flopsindex.com/excel-addin/manifest.xml
# Google Sheets
Extensions → Add-ons → Manage Add-ons →
https://app.flopsindex.com/sheets-addin/manifest.json
The five cells finance teams use most
=FLOPS.PRICE("FLOPS-H100-OD")
→ 6.155 current settlement value
=FLOPS.PRICE("FLOPS-H100-OD", "2026-05-15")
→ 6.213 historical settlement
=FLOPS.METHODOLOGY("FLOPS-H100-OD")
→ "flops-h100-od@v0.9 · k-anon ≥ 3 · MAD trim"
=FLOPS.RECOMPUTE("FLOPS-H100-OD", "2026-05-15")
→ "https://app.flopsindex.com/v1/audit/recompute/{run_id}"
=FLOPS.GPU_CAPEX("h100_sxm5")
→ 26000 acquisition-layer reference price
=FLOPS.GPU_CAPEX("h100_sxm5", "tier")
→ "LIVE_USASPENDING" federal procurement (real new)
=FLOPS.GPU_CAPEX("h100_sxm5", "seed_price")
→ 28500 audit fallback (quarterly seed)
=FLOPS.RECOMPUTE() next to a settlement value in your mark-to-market model. The IOSCO audit trail follows the row — your auditor opens the URL, sees the source vector, the trim, the weighted median, the published value.
=FLOPS.GPU_CAPEX("h100_sxm5") returns the highest-authority reference price from a 3-tier cascade — T2 federal procurement contract median (real new prices), T1 eBay completed-listings × 1.15 markup, or T3 quarterly seed. The tier field tells you which one fired. Methodology at /methodology/GPU_CAPEX_LIVE_METHODOLOGY.md.
=FLOPS.GPU_CAPEX("h100_sxm5", "n_obs") returns the observation count behind the LIVE primary; GET /v1/refdata/gpu-capex/h100_sxm5/observations returns the raw rows (federal-contract award IDs + agency + amount, or eBay item IDs + sold-date + condition) that fed the median. Drill from the published value to the underlying records — IOSCO Principle 17 auditable inputs, end-to-end.
For ISDA-style or bilateral contracts where the settlement reference must be named and version-pinned in the docs. Both the slug and the methodology version are addressable URLs that don't change.
Contract clause template
Settlement Reference: FLOPS-H100-OD
Methodology Version: flci-h100@v0.9
Source: https://app.flopsindex.com/v1/methodology/flci-h100/v0.9
Publisher: FLOPS Compute Intelligence
Receipt verifier: https://app.flopsindex.com/v1/audit/recompute/{run_id}
Permalink surface (citation-stable)
/i/{INDEX_ID}— schema.org Dataset JSON-LD, suitable for footnoting/v1/methodology/{slug}/v{N}— immutable per published version/v1/audit/recompute/{run_id}— receipt + source vector + math
Auth-free public endpoints serve LIVE indices for prototyping. Partner-tier X-FLOPS-Api-Key unlocks the full catalog, history, spreads, and the recompute substrate.
Quick start
curl https://app.flopsindex.com/v1/price/FLOPS-H100-OD
{"value": 6.155, "tier": "LIVE", "confidence": "HIGH",
"unit": "USD/GPU-hr", "as_of": "2026-05-18T13:00:00Z",
"methodology_version": "flops-h100-od@v0.9"}
The full set of finance-relevant endpoints: /v1/price/{slug}, /v1/ts/{slug}?range=30d, /v1/derived/spread, /v1/derived/compute-margin, /v1/audit/recompute/{run_id}. See the engineering onboarding page for full schemas.
Is FLOPS suitable for mark-to-market and covenant true-ups?
What's the difference between SETTLEMENT and LIVE INTRADAY?
How does an auditor verify a published settlement value?
observations_hash identifies the source vector, (3) GET /v1/audit/recompute/{run_id} replays the computation from canonical inputs and returns a green/yellow/red status. The Recompute Audit panel on F13 GOVRN shows the daily run.What does "k-anonymity ≥ 3" mean in practice?
Is there a published change log for methodology?
/v1/methodology/{id}/versions. Changes never rewrite history — the new version pins at the change moment and old published values keep their old version pin.