Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.015,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.015,
    "image_quality_score": 0.775,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.945,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 3: listing image shows a smooth, glossy synthetic-looking hobo bag with a simple zipper and no visible Coach-specific identifier.",
        "photo 5: interior is visibly fabric-lined and has generic printed labels such as \"Main packet\" and \"inner zip pocket,\" rather than a Coach creed or branded lining.",
        "photo 4: hardware appears bright gold-tone and lightweight-looking, with a generic zipper construction rather than vintage Coach turnlock hardware.",
        "listing text: seller explicitly describes the material as PU leather and the lining as polyester.",
        "photos 1-6: product imagery is marked \"NEW\" and presents a mass-produced contemporary accessory, inconsistent with a vintage Coach listing.",
        "photo 5: light gray polyester lining visible in open top view, not unlined suede",
        "seller states PU leather fabric and polyester lined - faux materials",
        "photo 1-4: zip-top hobo with no turnlock, no brass hardware, no creed patch, no hangtag",
        "photo 1-6: brand new condition with NEW bug and stock-type lifestyle images, modern fast-fashion construction",
        "photo 3-4: gold-tone zipper with thin fixed shoulder strap, not vintage Coach brass and dogleash construction"
    ],
    "missing_information": [
        "No close-up of any brand or interior leather label is provided, although the available photos show no obvious Coach identifier.",
        "No underside, zipper-pull detail, or strap-attachment close-up is provided.",
        "No creed patch shown - no interior back-wall leather patch view to verify",
        "No hardware brand stamps shown in close-up",
        "No hangtag or wordmark close-up"
    ],
    "authenticity_concerns": [
        "photo 5: synthetic\/polyester construction and generic interior labeling are inconsistent with classic vintage Coach glove-tanned leather handbags.",
        "photo 4: the generic zipper-only hobo construction lacks the characteristic identifiers expected for a vintage Coach classic.",
        "photo 1-6: PU synthetic material and polyester lining incompatible with vintage Coach glove-tanned construction",
        "photo 5: modern fast-fashion zip-top hobo with no Coach identifiers"
    ],
    "possible_model_reasoning": [
        "The compact curved hobo silhouette is not sufficient to match a Coach model, and no Coach model identifiers are visible.",
        "photo 5: the polyester lining and generic pocket labels support a modern non-Coach mass-market bag.",
        "Condition: New according to the listing and product photos; no meaningful wear is visible, though stock imagery limits independent condition verification.",
        "No Coach model fits: zip-top modern PU hobo lacks turnlock, glove-tanned leather, brass hardware, creed and hangtag required for classics like Ergo Hobo or Soho Zip Hobo",
        "Condition: New per seller and NEW overlay in photos; synthetic new bag has no vintage patina or rehab grade",
        "Era reasoning: PU + polyester + zip-top + fixed strap = modern (2000s+) non-Coach fast fashion"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photos 3-5: bright gold-tone zipper hardware; no turnlock, Coach engraving, or hangtag is visible.",
        "leather_description": "photos 2-4: smooth, uniform, glossy brown material with a synthetic appearance; listing states PU leather.",
        "lining_description": "photo 5: light fabric\/polyester lining with generic pocket labels; no creed patch is visible.",
        "strap_construction": "photos 3-6: single attached shoulder strap with sewn ends; no detachable clips or vintage buckle adjustment visible.",
        "stitching_description": "photos 3-4: visible machine-stitched perimeter seams appear generally even; construction is contemporary and generic."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0022,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 3: listing image shows a smooth, glossy synthetic-looking hobo bag with a simple zipper and no visible Coach-specific identifier.",
                    "photo 5: interior is visibly fabric-lined and has generic printed labels such as \"Main packet\" and \"inner zip pocket,\" rather than a Coach creed or branded lining.",
                    "photo 4: hardware appears bright gold-tone and lightweight-looking, with a generic zipper construction rather than vintage Coach turnlock hardware.",
                    "listing text: seller explicitly describes the material as PU leather and the lining as polyester.",
                    "photos 1-6: product imagery is marked \"NEW\" and presents a mass-produced contemporary accessory, inconsistent with a vintage Coach listing."
                ],
                "missing_information": [
                    "No close-up of any brand or interior leather label is provided, although the available photos show no obvious Coach identifier.",
                    "No underside, zipper-pull detail, or strap-attachment close-up is provided."
                ],
                "authenticity_concerns": [
                    "photo 5: synthetic\/polyester construction and generic interior labeling are inconsistent with classic vintage Coach glove-tanned leather handbags.",
                    "photo 4: the generic zipper-only hobo construction lacks the characteristic identifiers expected for a vintage Coach classic."
                ],
                "observed_features": {
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "serial_or_style_number_present": false,
                    "serial_or_style_number": "not_visible",
                    "coach_wordmark_present": false,
                    "turnlock_present": false,
                    "hangtag_present": false,
                    "hardware_description": "photos 3-5: bright gold-tone zipper hardware; no turnlock, Coach engraving, or hangtag is visible.",
                    "leather_description": "photos 2-4: smooth, uniform, glossy brown material with a synthetic appearance; listing states PU leather.",
                    "lining_description": "photo 5: light fabric\/polyester lining with generic pocket labels; no creed patch is visible.",
                    "strap_construction": "photos 3-6: single attached shoulder strap with sewn ends; no detachable clips or vintage buckle adjustment visible.",
                    "stitching_description": "photos 3-4: visible machine-stitched perimeter seams appear generally even; construction is contemporary and generic."
                },
                "possible_model_reasoning": [
                    "The compact curved hobo silhouette is not sufficient to match a Coach model, and no Coach model identifiers are visible.",
                    "photo 5: the polyester lining and generic pocket labels support a modern non-Coach mass-market bag.",
                    "Condition: New according to the listing and product photos; no meaningful wear is visible, though stock imagery limits independent condition verification."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-6: PU synthetic material and polyester lining incompatible with vintage Coach glove-tanned construction",
                    "photo 5: modern fast-fashion zip-top hobo with no Coach identifiers"
                ],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.95,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No creed patch shown - no interior back-wall leather patch view to verify",
                    "No hardware brand stamps shown in close-up",
                    "No hangtag or wordmark close-up"
                ],
                "negative_evidence": [
                    "photo 5: light gray polyester lining visible in open top view, not unlined suede",
                    "seller states PU leather fabric and polyester lined - faux materials",
                    "photo 1-4: zip-top hobo with no turnlock, no brass hardware, no creed patch, no hangtag",
                    "photo 1-6: brand new condition with NEW bug and stock-type lifestyle images, modern fast-fashion construction",
                    "photo 3-4: gold-tone zipper with thin fixed shoulder strap, not vintage Coach brass and dogleash construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone zip-top zipper with small pull, no turnlock, no brass dogleash clips visible",
                    "leather_description": "smooth high-sheen synthetic PU leather-look material in white, tan, brown, black colorways, not glove-tanned leather grain",
                    "lining_description": "light gray polyester fabric lining visible in photo 5 with slot pockets",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "thin edge stitching on strap and body, not visible in detail",
                    "strap_construction": "narrow fixed single shoulder strap sewn to body, not buckle-adjustable or detachable",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top modern PU hobo lacks turnlock, glove-tanned leather, brass hardware, creed and hangtag required for classics like Ergo Hobo or Soho Zip Hobo",
                    "Condition: New per seller and NEW overlay in photos; synthetic new bag has no vintage patina or rehab grade",
                    "Era reasoning: PU + polyester + zip-top + fixed strap = modern (2000s+) non-Coach fast fashion"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.01
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17884,
            "output_tokens": 707,
            "total_tokens": 18591,
            "estimated_cost_usd": 0.00885
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18226,
            "output_tokens": 1200,
            "total_tokens": 19426,
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}