GreenCIO Compute Index

A GPU-hour price you can audit.

Compare GPU-hour prices with the sources, quote age, and market coverage shown for each result.

Source citedThreshold clearedDesk reviewedHuman approved
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Governance design
5
Venue floor

Distinct venues required before a settlement is eligible to publish

5
Source floor

Distinct sources required, counted independently of venue count

24h
Staleness cutoff

Maximum quote age admitted to a settlement panel

15%
Provisional band

Uncertainty above this marks a settlement provisional and excludes it by default

Publication status

The calculation method is public. GreenCIO shows an index value only when enough recent source data is available. GreenCIO does not claim IOSCO compliance.

Method

How a settlement is built

Each stage states the requirement used in the calculation.

  1. 1

    Collect and normalise

    Quotes are gathered per SKU and region, normalized to a common currency and utilization basis, and stamped with their source.

    USD basis · utilization ≥ 1% · skew ≤ 5 min

  2. 2

    Qualify the panel

    A settlement is only eligible if enough independent venues and distinct sources cleared the staleness cutoff. Thin panels do not settle.

    ≥ 5 venues · ≥ 5 distinct sources · ≤ 24h old

  3. 3

    Trim and weight

    Outliers are trimmed at three standard deviations and the surviving quotes are weighted, with each input's weight share recorded.

    3σ trim · min weight 0.0001

  4. 4

    Check before publication

    A settlement whose uncertainty band exceeds the provisional threshold is marked provisional and excluded by default, not published with a caveat.

    band > 15% → provisional, excluded

Sources

What is kept for every settlement

These records show how each price was calculated.

Naming convention

Every settlement carries a structured identifier, so an index reference is unambiguous about the accelerator, the region, and the tenor it describes.

GCI-{SKU}-{REGION}-{TENOR}

Included and rejected lineage

Both sides of the panel are retained. Every accepted quote and every rejected quote is recorded with the reason it was rejected.

Typed rejection reasons per quote

Inputs used

Each result keeps the list of quotes used in the calculation.

Quote list saved with each result

Source weight shares

How much each source contributed is recorded alongside the result, which is what lets a reviewer test for concentration.

Weight share retained per input

Method version

Each result states which version of the method produced it.

Method version saved with each result

Approved revisions

A methodology change requires an old version, a new version, an effective date, an approver, and a rationale. There is no silent edit path.

Revision log with named approver

Design principle

When the panel is too thin, nothing publishes

GreenCIO does not publish a price when source coverage is too low.

No silent fallback

If GreenCIO cannot verify source permission or quote age, it does not publish a price.

No substitute price

Provisional excluded by default

A settlement with an uncertainty band above the threshold is not published with a footnote. It is withheld, and the default has to be overridden deliberately.

band > 15% → excluded unless explicitly included

Clear data status

Every API response states where the data came from and when it was observed.

Source and observation time included

Learn more

Questions

What reviewers ask first

Why does this page not show index values?

GreenCIO shows a value only when enough recent quotes from independent venues and sources are available. GreenCIO does not claim IOSCO compliance.

Read the governance design
What happens when the panel is too thin?

GreenCIO does not publish a value when market coverage is too low. It does not replace missing quotes with an estimate.

How is this different from a broker or exchange-affiliated benchmark?

The structural question with any price benchmark is who benefits from the number moving. Our methodology, thresholds, rejection reasons, and revision requirements are published so the construction can be audited independently of any commercial interest in the level.

Can I see the rejected quotes?

GreenCIO keeps rejected quotes and the reason for each rejection. Design partners can review this record when source licenses allow it.

Is there a forward curve?

A forward curve is planned but is not available today. The roadmap lists the work required before publication.

View the roadmap

Review the method before you use the index.

We will explain the sources, calculation, rejected quotes, and publication requirements.

Request a demoGovernance design