{
  "recordVersion": 1,
  "status": "One completed workflow; not an overall comparison verdict",
  "runId": "sales-returns-gemini-20261019-01",
  "dateUTC": "2026-10-19",
  "app": "Gemini",
  "surface": "Ordinary Gemini browser chat",
  "visibleConfiguration": {
    "plan": "Not displayed; not inferred from Upgrade prompts",
    "modelEntry": "Auto — Gemini 3 models",
    "thinking": "High — Extra thorough",
    "namedAlternatives": "3.1 Pro and 4 Argon locked"
  },
  "perResponseLabels": {
    "P1": "Used 3.5 Flash-Lite High; Used Analysis",
    "P2": "Used 3.5 Flash-Lite High; Used Analysis",
    "P3": "Used 3.5 Flash-Lite High; Used Analysis",
    "P4": "Used 3.6 Flash with auto selection; Used Analysis"
  },
  "configurationScope": "Selected Auto/High and app-reported per-answer labels are separate observations, not independent identification or an isolated benchmark of a backend model.",
  "operator": "AI agent working for Anomaly using an authorized logged-in browser account",
  "reviewer": "Separate AI article writer working for Anomaly; checked saved input files and actual outputs independently",
  "notBlinded": true,
  "blindingDisclosure": "Operator read the answer key before P1; writer and coordinator also knew it. Only fixed prompts and workbook were sent; no expected answers or corrective hints.",
  "accountState": "Fresh chat. Access inspection at 14:54 UTC saw past-chat memory OFF and saved-instructions feature ON with no saved instructions; not re-inspected during this run. Earlier chats visible. History-saving setting, skills, connected apps and Gems not inspected. No connector invoked.",
  "independenceDisclosure": "Vendor-authored comparison, not blinded or independent of Anomaly.",
  "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 with pre-attachment hash verified; app read all five sheets; stored upload round trip not verified"
  },
  "reference": {
    "file": "reference-values.csv",
    "url": "../reference-values.csv",
    "method": "Saved CSVs calculated by SQL, independently checked with JavaScript and Python"
  },
  "promptsAndInputDownload": "../comparison-workbook-and-checks-v1.zip",
  "prompts": [
    {
      "prompt": "P1",
      "frozenTextSHA256": "1c8b1438a8f114ec1cc373471362742dacfcfcda12e4b9b284634cec1e1df6ad",
      "sentUTC": "2026-10-19T15:47:40.435Z",
      "generationEndedUTC": null,
      "elapsedSeconds": null,
      "timingNote": "About 20–50 seconds; bounded, not measured to the second.",
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false
    },
    {
      "prompt": "P2",
      "frozenTextSHA256": "a1284f6c7ad6554a50ca9eb2ee834fe772e1d7151b73d97d4f61c64a20fee68c",
      "sentUTC": "2026-10-19T15:54:50.747Z",
      "generationEndedUTC": "2026-10-19T15:55:11.372Z",
      "elapsedSeconds": 20.6,
      "timingNote": "Stop-button disappearance observed; hidden-tab text rendered later.",
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false
    },
    {
      "prompt": "P3",
      "frozenTextSHA256": "5267ae75957ef85ea20be20a5965d6e6ba81c5563278de20f6f3da6136db9362",
      "sentUTC": "2026-10-19T15:56:24.507Z",
      "generationEndedUTC": "2026-10-19T15:56:41.233Z",
      "elapsedSeconds": 16.7,
      "timingNote": "Stop-button disappearance observed; hidden-tab text rendered later.",
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false
    },
    {
      "prompt": "P4",
      "frozenTextSHA256": "c7bf19a8bd57a33677e5d3931ba46ca88f06ee642f9c1754d578a363b44583b0",
      "sentUTC": "2026-10-19T15:57:57.489Z",
      "generationEndedUTC": "2026-10-19T15:58:49.039Z",
      "elapsedSeconds": 51.6,
      "timingNote": "Stop-button disappearance observed; hidden-tab text rendered later.",
      "firstAttempt": "Completed",
      "clarifications": 0,
      "recoveryUsed": false
    }
  ],
  "timingDefinition": "P2–P4 measured from send click to observed Stop-button disappearance. P1 only bounded. Hidden browser tab delayed text rendering; capture/reload time is not generation time. No latency score or clean user-perceived speed ranking.",
  "access": {
    "allFiveSheetsRead": true,
    "userFacingQuotaOrUnavailableToolBlock": false,
    "technicalRecoveryUsed": false,
    "stallRuleTriggered": false,
    "appRetriedCodeWithinP4": true
  },
  "checks": [
    {
      "id": "N1",
      "check": "All five sheet row counts",
      "result": "PASS",
      "reason": null,
      "observed": "All five raw counts correct: 12,120 / 600 / 24 / 5 / 4."
    },
    {
      "id": "N2",
      "check": "Key columns and uniqueness",
      "result": "PASS",
      "reason": null,
      "observed": "Sales line_id repeats; other four primary keys unique, correctly stated."
    },
    {
      "id": "N3",
      "check": "Date extents",
      "result": "PASS",
      "reason": null,
      "observed": "Sales Jan 1–Jun 30, 2026; returns Jan 3–Jun 30, 2026."
    },
    {
      "id": "N4",
      "check": "Three required data-quality observations",
      "result": "FAIL",
      "reason": null,
      "observed": "P1 identifies 120 exact repeats and absent price/revenue fields, but omits the actual category with no products. Generic undefined-zero guidance does not identify it. P2 later identifies Seasonal Gifts correctly."
    },
    {
      "id": "N5",
      "check": "Rows before and after deduplication",
      "result": "PASS",
      "reason": null,
      "observed": "12,120 raw → 12,000 unique rows."
    },
    {
      "id": "N6",
      "check": "Six monthly units totals",
      "result": "PASS",
      "reason": null,
      "observed": "3,456 / 3,761 / 4,872 / 5,643 / 6,815 / 8,559; all correct."
    },
    {
      "id": "N7",
      "check": "Five category units totals",
      "result": "PASS",
      "reason": null,
      "observed": "Kitchen 9,014; Outdoor 8,535; Office 8,668; Pet Supplies 6,889; Seasonal Gifts 0; all correct."
    },
    {
      "id": "N8",
      "check": "Four regional units totals",
      "result": "PASS",
      "reason": null,
      "observed": "North 11,067; South 9,090; East 7,271; West 5,678; all correct."
    },
    {
      "id": "N9",
      "check": "Grand total and reconciliation",
      "result": "PASS",
      "reason": null,
      "observed": "33,106; month/category/region totals reconcile."
    },
    {
      "id": "N10",
      "check": "Category return numerators and denominators",
      "result": "FAIL",
      "reason": null,
      "observed": "Returned units 248/472/167/293 instead of 244/460/160/288; denominators correct."
    },
    {
      "id": "N11",
      "check": "Category return rates",
      "result": "FAIL",
      "reason": null,
      "observed": "2.75%/5.53%/1.93%/4.25% instead of 2.71%/5.39%/1.85%/4.18%."
    },
    {
      "id": "N12",
      "check": "No-sales category rate",
      "result": "PASS",
      "reason": null,
      "observed": "Seasonal Gifts retained with an explained UNDEFINED rate, 0 returned / 0 sold."
    },
    {
      "id": "J1",
      "check": "Duplicate-safe joins",
      "result": "FAIL",
      "reason": null,
      "observed": "Return lookup uses raw sales rows, counting some returns twice: 1,180 returned units instead of 1,152."
    },
    {
      "id": "J2",
      "check": "Complete output groups",
      "result": "PASS",
      "reason": null,
      "observed": "All five categories, four regions and six months retained in the requested summaries."
    },
    {
      "id": "J3",
      "check": "No invented period or financial values",
      "result": "PASS",
      "reason": null,
      "observed": "No later-month estimates or money values invented."
    },
    {
      "id": "F1",
      "check": "Chart agrees with checked monthly totals",
      "result": "PASS",
      "reason": null,
      "observed": "Actual PNG visually inspected: six correct sales bars, dates and units. Native workbook chart uses the same correct sales cells."
    },
    {
      "id": "F2",
      "check": "Exactly three supported findings",
      "result": "FAIL",
      "reason": null,
      "observed": "Exactly three findings. First two sales findings correct; third uses incorrect return counts/rates and a monthly table inconsistent with its own code and workbook."
    },
    {
      "id": "W1",
      "check": "Reproducible supplied working",
      "result": "FAIL",
      "reason": null,
      "observed": "P2 code runs unchanged and is correct. P4 code runs but calculates wrong returns. Final-answer code omits promised files; fuller code-panel path reproduces the incorrect workbook."
    },
    {
      "id": "W2",
      "check": "Working agrees with reported counts and tables",
      "result": "PASS",
      "reason": null,
      "observed": "P2 steps, counts, code outputs and tables agree."
    },
    {
      "id": "E1",
      "check": "Delivered files retrieved and reopened",
      "result": "FAIL",
      "reason": null,
      "observed": "Two files retrieved/reopened. Workbook sales correct, return values wrong; monthly returns also differ from chat. Wrong values, not missing export support."
    },
    {
      "id": "E2",
      "check": "XLSX summary values",
      "result": "FAIL",
      "reason": null,
      "observed": "Workbook opens and recalculates, but returned units/rates are wrong."
    },
    {
      "id": "E3",
      "check": "Claimed workbook editability",
      "result": "NOT-ASSESSED",
      "reason": "NA-NOT-CLAIMED",
      "observed": "No formula/editable-chart claim. Observed 23 formulas and one native chart; controlled aggregate edit updates dependent cells/chart. Observation, not a scored claim."
    }
  ],
  "scoringNote": "22 separate checks: 13 pass, 8 fail, 1 not assessed because no editability claim. No weighting or aggregate accuracy score. Several failures share the same return-join cause. Integers exact; rates within 0.01 percentage points. Access, latency and price separate.",
  "files": [
    {
      "name": "monthly_sales_chart.png",
      "sha256": "e0f6f060f341d0c979d68ab417323bd72f9f7ecd65fe64f3588fb68367ef985f",
      "bytes": 113508,
      "url": "/blog/best-ai-model-for-data-analysis/r1-gemini/monthly_sales_chart.png",
      "kind": "Unmodified app-delivered file",
      "warning": "Sales chart values match the reference."
    },
    {
      "name": "sales_and_returns_summary_2026.xlsx",
      "sha256": "07d7ba2c323b72ff384cfb3df834623e81471036cea4343a0f20d74d32d52e71",
      "bytes": 8267,
      "url": "/blog/best-ai-model-for-data-analysis/r1-gemini/sales_and_returns_summary_2026.xlsx",
      "kind": "Unmodified app-delivered file",
      "warning": "Workbook includes incorrect return values; retained as observed output, not a reference answer."
    }
  ],
  "retrievalMethod": "Chart Download button clicked and response bytes captured in-page. Workbook viewer Download URL intercepted, native download cancelled, same URL fetched in-page. Saved hashes match browser bytes. Complete Mac browser download flow unverified; whether chart clicks also saved a Mac file unknown.",
  "verification": {
    "formulas": 23,
    "nativeCharts": 1,
    "formulaCachesMissingInOriginal": 23,
    "recalculationEngine": "LibreOffice 24.2.7.2",
    "readerWarnings": [],
    "controlledEdit": "On a copy, Monthly Summary!B4 changed 3,456→3,457: grand sold units became 33,107; native chart and dependent net/rate formulas updated. This edits an aggregate, not raw source data.",
    "manualMicrosoftExcelSessionTested": false,
    "monthlyReturns": {
      "file": [
        136,
        171,
        166,
        194,
        250,
        263
      ],
      "chat": [
        108,
        96,
        148,
        198,
        239,
        391
      ],
      "referenceByOrderMonth": [
        133,
        167,
        164,
        189,
        242,
        257
      ]
    }
  },
  "limitations": [
    "One synthetic input, one workflow, one date; no general reliability or model-capability estimate.",
    "Unmatched plans, visible routes and account personalization across apps.",
    "Workbook retained as evidence contains known wrong return values.",
    "No manual Microsoft Excel session or complete native Mac download-flow verification.",
    "P1 timing bounded and browser tab hidden; no clean speed ranking.",
    "Full app-context screenshot capture remains incomplete; existing cropped evidence is genuine.",
    "Large-file performance, native spreadsheet integrations, statistical inference and unattended refresh were not tested."
  ]
}