# Dataset releases

> Versioned cloud-price, build-versus-buy, and price-history snapshots with reports, source ledgers, full tables, methodology, schemas, and checksums.

---

LLMS index: [llms.txt](/llms.txt)

---

Every number highlighted in the ledger points to a dated release. A release is
immutable: a correction creates a new version rather than overwriting the old
bytes.

<div class="table-responsive">
    <table class="table">
      <thead>
        <tr><th>Dataset</th><th>Coverage</th><th>Source window</th><th>Status</th></tr>
      </thead>
      <tbody><tr>
            <td><a href="/data/build-vs-buy/2026-08-24-v1/README.md"><strong>Cloud build-versus-buy model</strong></a><br><code>build-vs-buy-2026</code>
            </td>
            <td>Compute, PostgreSQL RDS-like services, object storage, egress, break-even points, and sensitivity.</td>
            <td>2026-08-22—2026-08-24</td>
            <td><span class="ce-status">released-snapshot</span></td>
          </tr><tr>
            <td><a href="/data/cloud-pricing/2026-08-22-v1/README.md"><strong>AWS and Alibaba Cloud pricing model</strong></a><br><code>cloud-pricing-2026</code>
            </td>
            <td>EC2/ECS, RDS, block storage, object storage, traffic, commitments, and time value.</td>
            <td>2026-08-22—2026-08-24</td>
            <td><span class="ce-status">released-snapshot</span></td>
          </tr><tr>
            <td><a href="/data/price-history/2026-08-24-v1/README.md"><strong>Cloud price-history model</strong></a><br><code>cloud-price-history-2026</code>
            </td>
            <td>Long-run compute, storage, and egress price anchors with physical-input and inflation context.</td>
            <td>2006—2026; reviewed 2026-08-24</td>
            <td><span class="ce-status">released-snapshot</span></td>
          </tr></tbody>
    </table>
  </div>
  <p class="ce-dataset-note">“Released snapshot” means the files ship with the site together with sources, methodology, schema, and checksums. It is still not a live provider quote.</p>

## Release contents {#contents}

Each version contains:

```text
README.md             scope, dates, units, and reuse warning
release.json          machine-readable version and status
report.md             complete human-readable analysis
methodology.md        comparison and normalization rules
schema.json           table keys and unit conventions
tables/               all CSV and JSON inputs/outputs plus source ledger
charts/               reproducible report charts where available
checksums.txt          SHA-256 for every released file
```

## Three complementary datasets {#three}

### Cloud pricing · `2026-08-22-v1` {#pricing}

Current-reference AWS and Alibaba Cloud tables for EC2/ECS, EBS/ESSD, S3/OSS,
network, PostgreSQL RDS, commitments, and managed-database curves.

- [Release notes](/data/cloud-pricing/2026-08-22-v1/README.md)
- [Full report](/data/cloud-pricing/2026-08-22-v1/report.md)
- [Source ledger](/data/cloud-pricing/2026-08-22-v1/tables/source_ledger.csv)
- [Checksums](/data/cloud-pricing/2026-08-22-v1/checksums.txt)

### Build versus buy · `2026-08-24-v1` {#build}

Discrete cost curves, first and durable crossings, and sensitivity tables for
compute, PostgreSQL, object storage, and fixed-port egress. Baseline internal
labor and migration cost are deliberately excluded.

- [Release notes](/data/build-vs-buy/2026-08-24-v1/README.md)
- [Assumptions](/data/build-vs-buy/2026-08-24-v1/tables/assumptions.json)
- [Full report](/data/build-vs-buy/2026-08-24-v1/report.md)
- [Source ledger](/data/build-vs-buy/2026-08-24-v1/tables/source_ledger.csv)
- [Checksums](/data/build-vs-buy/2026-08-24-v1/checksums.txt)

### Price history · `2026-08-24-v1` {#history}

Long-run public-price anchors, nominal and real indexes, workload bill baskets,
physical-input context, and historical source records from 2006–2026.

- [Release notes](/data/price-history/2026-08-24-v1/README.md)
- [Full report](/data/price-history/2026-08-24-v1/report.md)
- [Long-run metrics](/data/price-history/2026-08-24-v1/tables/long_run_metrics.csv)
- [Source ledger](/data/price-history/2026-08-24-v1/tables/source_ledger.csv)
- [Checksums](/data/price-history/2026-08-24-v1/checksums.txt)

## Status semantics {#status}

`released-snapshot` means the files ship with the site and pass checksum and
headline-value verification. It does **not** mean the price is current today,
that a provider supplied a formal quote, or that two services are fully
equivalent. Use the snapshot date and applicability note whenever quoting a
value.

The machine-readable release index is at [`/data/index.json`](/data/index.json).