{
  "recordVersion": 1,
  "status": "One completed workflow; not an overall comparison verdict",
  "runId": "sales-returns-claude-20261019-01",
  "dateUTC": "2026-10-19",
  "app": "Claude",
  "surface": "Ordinary claude.ai browser chat",
  "visibleConfiguration": {
    "plan": "Max (20x)",
    "modelLabel": "Fable 5.1",
    "effort": "Max",
    "permissions": "Manual"
  },
  "configurationScope": "Observed app labels; not independent identification or an isolated benchmark of the underlying model.",
  "operator": "AI agent working for Anomaly, using an authorized logged-in browser account",
  "reviewer": "Separate AI article writer working for Anomaly; independently recomputed the checked values from saved input files",
  "notBlinded": true,
  "blindingDisclosure": "The operator read the reference answer key before the first prompt. The verifying writer also knew the answers. Only the fixed prompts and synthetic workbook were sent to the app; no expected answers or corrective hints were added.",
  "accountState": "Fresh chat. Per-chat Memory ON. Prior access inspection found saved memory and memory generation ON, past-chat reference OFF and empty custom instructions; those account settings were not re-inspected during this run. Two existing connectors were ON; neither was invoked.",
  "independenceDisclosure": "Vendor-authored comparison. Independent calculation does not mean an evaluator independent of Anomaly or blinded to expected answers.",
  "input": {
    "name": "sales-returns-workbook.xlsx",
    "bytes": 2575274,
    "sha256": "5d25f5d9d877c895736cf91361de94742a8f50af8f4d74a1ea2240929e17f3ed",
    "url": "../sales-returns-workbook.xlsx",
    "provenance": "Synthetic five-sheet workbook; same frozen bytes for all three apps",
    "upload": "Browser-created File/DataTransfer upload; before-upload hash and stored-file round trip match the frozen workbook"
  },
  "reference": {
    "file": "reference-values.csv",
    "url": "../reference-values.csv",
    "method": "Precomputed from saved CSVs with SQL, independently cross-checked with JavaScript and a separate Python reader"
  },
  "promptsAndInputDownload": "../comparison-workbook-and-checks-v1.zip",
  "prompts": [
    {
      "prompt": "P1",
      "frozenTextSHA256": "1c8b1438a8f114ec1cc373471362742dacfcfcda12e4b9b284634cec1e1df6ad",
      "sentUTC": "2026-10-19T15:01:49.250Z",
      "completedUTC": "2026-10-19T15:10:33.014520Z",
      "elapsedSeconds": 523.8,
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false,
      "textDelivery": "Exact frozen text before sending; the app removed the final newline when storing P1"
    },
    {
      "prompt": "P2",
      "frozenTextSHA256": "a1284f6c7ad6554a50ca9eb2ee834fe772e1d7151b73d97d4f61c64a20fee68c",
      "sentUTC": "2026-10-19T15:11:37.978Z",
      "completedUTC": "2026-10-19T15:12:37.696670Z",
      "elapsedSeconds": 59.7,
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false,
      "textDelivery": "Exact frozen text before sending and in app storage"
    },
    {
      "prompt": "P3",
      "frozenTextSHA256": "5267ae75957ef85ea20be20a5965d6e6ba81c5563278de20f6f3da6136db9362",
      "sentUTC": "2026-10-19T15:13:39.425Z",
      "completedUTC": "2026-10-19T15:14:12.698697Z",
      "elapsedSeconds": 33.3,
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false,
      "textDelivery": "Exact frozen text before sending and in app storage"
    },
    {
      "prompt": "P4",
      "frozenTextSHA256": "c7bf19a8bd57a33677e5d3931ba46ca88f06ee642f9c1754d578a363b44583b0",
      "sentUTC": "2026-10-19T15:14:40.426Z",
      "completedUTC": "2026-10-19T15:24:39.359344Z",
      "elapsedSeconds": 598.9,
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false,
      "textDelivery": "Exact frozen text before sending and in app storage"
    }
  ],
  "timingDefinition": "Send to assistant completion timestamp supplied by the app. The page showed finished 0.3–2.4 seconds later. No latency score. First send to last completion was 1,370.109 seconds, including operator gaps between prompts.",
  "access": {
    "allFiveSheetsRead": true,
    "quotaOrUnavailableToolMessage": false,
    "technicalRecoveryUsed": false,
    "stallRuleTriggered": false
  },
  "checks": [
    {
      "id": "N1",
      "check": "All five sheet row counts",
      "result": "PASS",
      "observed": "12,120 / 600 / 24 / 5 / 4"
    },
    {
      "id": "N2",
      "check": "Key columns and uniqueness",
      "result": "PASS",
      "observed": "Sales line_id repeats; the other four primary keys are unique"
    },
    {
      "id": "N3",
      "check": "Date extents",
      "result": "PASS",
      "observed": "Sales 2026-01-01–2026-06-30; returns 2026-01-03–2026-06-30"
    },
    {
      "id": "N4",
      "check": "Three required data-quality observations",
      "result": "PASS",
      "observed": "120 exact repeated sales rows; Seasonal Gifts has no products; no price/revenue column"
    },
    {
      "id": "N5",
      "check": "Rows before and after deduplication",
      "result": "PASS",
      "observed": "12,120 → 12,000"
    },
    {
      "id": "N6",
      "check": "Six monthly units totals",
      "result": "PASS",
      "observed": "3,456 / 3,761 / 4,872 / 5,643 / 6,815 / 8,559"
    },
    {
      "id": "N7",
      "check": "Five category units totals",
      "result": "PASS",
      "observed": "Kitchen 9,014; Outdoor 8,535; Office 8,668; Pet Supplies 6,889; Seasonal Gifts 0"
    },
    {
      "id": "N8",
      "check": "Four regional units totals",
      "result": "PASS",
      "observed": "North 11,067; South 9,090; East 7,271; West 5,678"
    },
    {
      "id": "N9",
      "check": "Grand total and reconciliation",
      "result": "PASS",
      "observed": "33,106; each dimension sums to the same total"
    },
    {
      "id": "N10",
      "check": "Category return numerators and denominators",
      "result": "PASS",
      "observed": "244/9,014; 460/8,535; 160/8,668; 288/6,889"
    },
    {
      "id": "N11",
      "check": "Category return rates",
      "result": "PASS",
      "observed": "2.71% / 5.39% / 1.85% / 4.18%"
    },
    {
      "id": "N12",
      "check": "No-sales category rate",
      "result": "PASS",
      "observed": "Seasonal Gifts retained with an explained undefined rate, 0 returned / 0 sold"
    },
    {
      "id": "J1",
      "check": "Duplicate-safe joins",
      "result": "PASS",
      "observed": "1,152 returned units; joining returns to repeated sales rows would incorrectly give 1,180"
    },
    {
      "id": "J2",
      "check": "Complete output groups",
      "result": "PASS",
      "observed": "Five categories, four regions and six months retained"
    },
    {
      "id": "J3",
      "check": "No invented period or financial values",
      "result": "PASS",
      "observed": "No later-month estimates or money values"
    },
    {
      "id": "F1",
      "check": "Chart agrees with checked monthly totals",
      "result": "PASS",
      "observed": "Six months; correct units and dates; checked PNG, generating code, CSV and native chart data"
    },
    {
      "id": "F2",
      "check": "Exactly three supported findings",
      "result": "PASS",
      "observed": "23 explicit quantities and qualitative comparisons independently recalculated at displayed precision"
    },
    {
      "id": "W1",
      "check": "Reproducible supplied working",
      "result": "PASS",
      "observed": "P2 displayed code and P4 complete delivered Python ran unchanged; P4 CSV byte-identical; regenerated workbook correct after recalculation. The short P4 inline excerpt is not standalone."
    },
    {
      "id": "W2",
      "check": "Working agrees with reported counts and tables",
      "result": "PASS",
      "observed": "12,120 → 12,000 rows; 33,436 raw → 33,106 deduplicated units"
    },
    {
      "id": "E1",
      "check": "Delivered files retrieved and reopened",
      "result": "PASS",
      "observed": "Four files retrieved through the app files interface; CSV and workbook values checked with independent readers. Browser Download buttons not tested."
    },
    {
      "id": "E2",
      "check": "XLSX summary values",
      "result": "PASS",
      "observed": "116 calculated cells and all 12,000 deduplicated source rows checked; no mismatches"
    },
    {
      "id": "E3",
      "check": "Claimed workbook editability",
      "result": "PASS",
      "observed": "116 formulas and one native chart; a +1 source-unit edit updated the correct month/category/region totals and chart in LibreOffice. Written findings stayed static."
    }
  ],
  "scoringNote": "22 separate checks; no weighting or aggregate accuracy score. Integer quantities exact; displayed category rates within 0.01 percentage points of the two-decimal reference. Access, latency and prices are separate. This record does not score unrun workflows.",
  "files": [
    {
      "name": "build_units_by_month.py",
      "sha256": "edcfe738d905a5f2e0203e80258b2555ca1c4d88b23c5304f76a48824f3d29c1",
      "bytes": 23314,
      "url": "/blog/best-ai-model-for-data-analysis/r1-claude/build_units_by_month.py",
      "kind": "Unmodified app-delivered file"
    },
    {
      "name": "units_sold_by_month_2026H1.csv",
      "sha256": "c3dddc305c682c92c86f66833b9363e47074bd8aa5cd20dcd545e5255cbf9e5b",
      "bytes": 396,
      "url": "/blog/best-ai-model-for-data-analysis/r1-claude/units_sold_by_month_2026H1.csv",
      "kind": "Unmodified app-delivered file"
    },
    {
      "name": "units_sold_by_month_2026H1.png",
      "sha256": "22ec1771a56dd5472ff3a5db4f7200f5b799026cd61cb41d428e7541d03d75d3",
      "bytes": 96373,
      "url": "/blog/best-ai-model-for-data-analysis/r1-claude/units_sold_by_month_2026H1.png",
      "kind": "Unmodified app-delivered file"
    },
    {
      "name": "units_sold_summary_2026H1.xlsx",
      "sha256": "0f449f604427e6145d3e04ba7a902c9faba3f5ce1fed93efaaa8fa12b0901d6a",
      "bytes": 540774,
      "url": "/blog/best-ai-model-for-data-analysis/r1-claude/units_sold_summary_2026H1.xlsx",
      "kind": "Unmodified app-delivered file"
    }
  ],
  "retrievalMethod": "Same-origin GET requests to the app files interface from the authorized browser page, followed by decoding on the verification machine. Each in-page SHA-256 matched its saved file. The native Mac browser Download buttons were not clicked.",
  "verification": {
    "formulas": 116,
    "nativeCharts": 1,
    "deduplicatedSourceRowsChecked": 12000,
    "recalculationEngine": "LibreOffice 24.2.7.2",
    "controlledEdit": "On a copy, Sales_dedup!I2 changed 1→2: January 3,456→3,457; grand total 33,106→33,107; corresponding category, region and chart data updated.",
    "writtenFindingsUpdateAutomatically": false,
    "manualMicrosoftExcelSessionTested": false
  },
  "limitations": [
    "One synthetic fixture, one completed workflow, one date. It does not establish general reliability, large-file performance or statistical-analysis ability.",
    "The three apps use unmatched subscriptions, visible model routes and account personalization. These results describe app configurations.",
    "P2 calls its shown code exact, but it is a functionally equivalent condensed rewrite of executed code. The shown code runs unchanged.",
    "The P4 short inline excerpt is not runnable alone. The complete delivered Python script is runnable and reproduces the checked values.",
    "The original delivered workbook has correct cached values. A workbook newly generated by the Python script requires recalculation.",
    "Written findings and two labelled source-count constants are static. Formula and chart updates do not update narrative claims.",
    "An extra exploratory P1 claim loosely rounded a 21.67-day mean lag to about 21 days; another used return-month grouping without an explicit basis. Required numerical checks are narrower than every word in the response.",
    "The app image preview did not render in the hidden browser tab. The delivered PNG itself was retrieved and visually inspected.",
    "File bytes were retrieved and checked, but the native browser Download-button flow was not tested."
  ]
}