Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.765,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.905,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The spherical basketball-shaped silhouette and all-over graffiti print do not match the classic vintage Coach handbag catalog.",
        "photo 1: The bag has a large glossy black chain strap and black zipper trim rather than the solid brass turnlock and leather strap construction typical of vintage Coach.",
        "photo 2: No legible COACH wordmark, horse-and-carriage mark, leather hangtag, or creed patch is visible.",
        "photo 3: The exterior appears to use a printed synthetic or textile-like surface, not identifiable glove-tanned Coach leather.",
        "photo 4: The interior shows plain black lining and zipper compartments but no visible Coach creed or fabric identification tag.",
        "listing text: Seller describes it as unbranded, which provides no positive Coach evidence.",
        "photo 1-3: spherical basketball novelty silhouette with all-over graffiti print; never a Coach catalog classic shape",
        "photo 1-2: chunky black plastic chain-link top handle with small gold-tone rings, not solid brass dogleash\/buckle hardware",
        "photo 1-3: printed pebbled coated\/synthetic exterior with multicolor graffiti text, not smooth glove-tanned cowhide",
        "photo 4: black smooth synthetic lining with no leather creed patch on back wall, no zip pocket or slip pocket",
        "photo 1-4: no COACH wordmark, horse-and-carriage, turnlock, or leather hangtag visible"
    ],
    "missing_information": [
        "photo 1-4: No bottom, seam, or exterior brand-label close-up is provided.",
        "photo 4: Interior pockets and seams are only partially shown; any small sewn-in fabric tag should be photographed closely.",
        "photo 1-3: Zipper pulls, chain attachment hardware, and any hidden labels are not shown in close-up.",
        "photo 4: interior shown open but no creed patch visible; no straight-on creed close-up to fully exclude a patch",
        "photo 1-3: no legible hardware brand stamps on zipper pull or chain rings",
        "photo 1-4: no hangtag, wordmark, or Made-in label shown"
    ],
    "authenticity_concerns": [
        "photo 1-3: The novelty spherical graffiti basketball design and glossy oversized chain are inconsistent with recognizable vintage Coach construction.",
        "photo 1-4: No Coach identifier is visible; this is more consistent with a generic or novelty non-Coach bag than a Coach item."
    ],
    "possible_model_reasoning": [
        "photo 1-3: No Coach model is a reasonable match; the round basketball form is a novelty design rather than a City Bag, Court, Willis, Dinky, or other catalog silhouette.",
        "photo 4: Interior organization consists of zippered compartments, but the absence of a creed or brand tag prevents any Coach model attribution.",
        "photo 1-4: Condition appears approximately Very Good based on intact exterior, chain, zippers, and lining, though the bottom and all stress points are not fully shown.",
        "No Coach model matches: spherical zip-around basketball novelty with plastic chain handle does not correspond to any Classic, Cashin, or modern Coach style",
        "No hard identifiers: no creed patch in photo 4 interior, no serial, no wordmark, no hangtag, no brass turnlock",
        "Construction is modern synthetic novelty, not unlined glove-tanned with solid brass, so vintage Coach excluded",
        "Condition: appears Like New\/Excellent with clean exterior print and clean interior (photo 4), but condition does not affect Coach identification"
    ],
    "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": "photo 1-4: Large black chain strap, small gold-tone rings, and multiple black zipper closures are visible; no Coach-stamped hardware is legible.",
        "leather_description": "photo 1-4: Black pebbled-looking trim and a multicolored graffiti basketball exterior are visible; material cannot be confirmed as leather.",
        "lining_description": "photo 4: Plain black interior lining or synthetic interior is visible; no brand label is shown.",
        "strap_construction": "photo 1-2: Oversized linked chain strap attached to small gold-tone rings at the sides.",
        "stitching_description": "photo 3-4: Visible seams appear machine-stitched and generally even; construction is not characteristic evidence of Coach."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0021,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The spherical basketball-shaped silhouette and all-over graffiti print do not match the classic vintage Coach handbag catalog.",
                    "photo 1: The bag has a large glossy black chain strap and black zipper trim rather than the solid brass turnlock and leather strap construction typical of vintage Coach.",
                    "photo 2: No legible COACH wordmark, horse-and-carriage mark, leather hangtag, or creed patch is visible.",
                    "photo 3: The exterior appears to use a printed synthetic or textile-like surface, not identifiable glove-tanned Coach leather.",
                    "photo 4: The interior shows plain black lining and zipper compartments but no visible Coach creed or fabric identification tag.",
                    "listing text: Seller describes it as unbranded, which provides no positive Coach evidence."
                ],
                "missing_information": [
                    "photo 1-4: No bottom, seam, or exterior brand-label close-up is provided.",
                    "photo 4: Interior pockets and seams are only partially shown; any small sewn-in fabric tag should be photographed closely.",
                    "photo 1-3: Zipper pulls, chain attachment hardware, and any hidden labels are not shown in close-up."
                ],
                "authenticity_concerns": [
                    "photo 1-3: The novelty spherical graffiti basketball design and glossy oversized chain are inconsistent with recognizable vintage Coach construction.",
                    "photo 1-4: No Coach identifier is visible; this is more consistent with a generic or novelty non-Coach bag than a Coach item."
                ],
                "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": "photo 1-4: Large black chain strap, small gold-tone rings, and multiple black zipper closures are visible; no Coach-stamped hardware is legible.",
                    "leather_description": "photo 1-4: Black pebbled-looking trim and a multicolored graffiti basketball exterior are visible; material cannot be confirmed as leather.",
                    "lining_description": "photo 4: Plain black interior lining or synthetic interior is visible; no brand label is shown.",
                    "strap_construction": "photo 1-2: Oversized linked chain strap attached to small gold-tone rings at the sides.",
                    "stitching_description": "photo 3-4: Visible seams appear machine-stitched and generally even; construction is not characteristic evidence of Coach."
                },
                "possible_model_reasoning": [
                    "photo 1-3: No Coach model is a reasonable match; the round basketball form is a novelty design rather than a City Bag, Court, Willis, Dinky, or other catalog silhouette.",
                    "photo 4: Interior organization consists of zippered compartments, but the absence of a creed or brand tag prevents any Coach model attribution.",
                    "photo 1-4: Condition appears approximately Very Good based on intact exterior, chain, zippers, and lining, though the bottom and all stress points are not fully shown."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "photo 4: interior shown open but no creed patch visible; no straight-on creed close-up to fully exclude a patch",
                    "photo 1-3: no legible hardware brand stamps on zipper pull or chain rings",
                    "photo 1-4: no hangtag, wordmark, or Made-in label shown"
                ],
                "negative_evidence": [
                    "photo 1-3: spherical basketball novelty silhouette with all-over graffiti print; never a Coach catalog classic shape",
                    "photo 1-2: chunky black plastic chain-link top handle with small gold-tone rings, not solid brass dogleash\/buckle hardware",
                    "photo 1-3: printed pebbled coated\/synthetic exterior with multicolor graffiti text, not smooth glove-tanned cowhide",
                    "photo 4: black smooth synthetic lining with no leather creed patch on back wall, no zip pocket or slip pocket",
                    "photo 1-4: no COACH wordmark, horse-and-carriage, turnlock, or leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "black plastic oversized chain-link handle attached with small gold-tone split rings; zip-around closure with metallic teeth and small gold-tone pull; not solid brass vintage hardware",
                    "leather_description": "dark blue printed pebbled coated\/synthetic material with multicolor graffiti text and white basketball seam lines; not glove-tanned leather",
                    "lining_description": "photo 4: black smooth synthetic lining, empty, no pockets or leather patch visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible; zip tape edge with black trim, no observable tight even leather stitching",
                    "strap_construction": "short rigid black plastic chain-link hand strap attached at two side rings; no adjustable leather crossbody strap, no buckle or dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model matches: spherical zip-around basketball novelty with plastic chain handle does not correspond to any Classic, Cashin, or modern Coach style",
                    "No hard identifiers: no creed patch in photo 4 interior, no serial, no wordmark, no hangtag, no brass turnlock",
                    "Construction is modern synthetic novelty, not unlined glove-tanned with solid brass, so vintage Coach excluded",
                    "Condition: appears Like New\/Excellent with clean exterior print and clean interior (photo 4), but condition does not affect Coach identification"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17095,
            "output_tokens": 812,
            "total_tokens": 17907,
            "estimated_cost_usd": 0.008787
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17557,
            "output_tokens": 1275,
            "total_tokens": 18832,
            "estimated_cost_usd": 0.004531
        }
    ]
}