Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.615,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.855,
    "recommended_max_bid": 8,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: Exterior is an oversized metallic rose-gold quilted bag with a generic buckle-front closure, not a recognizable vintage Coach silhouette.",
        "photo 2: Quilted synthetic-looking body and shiny matching trim are inconsistent with vintage Coach glove-tanned leather classics.",
        "photo 1: No legible COACH wordmark, horse-and-carriage, leather hangtag, or creed patch is visible.",
        "photo 6: Hardware appears lightweight\/plated and the front closure is a belt-style buckle rather than a Coach turnlock.",
        "photo 3: The visible handle and body construction do not show distinctive Coach identifiers.",
        "photo 1, photo 2, photo 5: oversized quilted diamond-stitched metallic rose-gold body with high sheen - faux\/PU-type finish, not vintage Coach glove-tanned cowhide",
        "photo 1, photo 2, photo 6: no Coach creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1, photo 6: front buckle-strap flap detail with brass-tone buckle, not Coach turnlock geometry",
        "photo 1-6: soft unstructured body that does not stand alone per seller, thin rolled handles with rivets - not classic Coach construction with solid brass turnlock \/ dogleash clips",
        "photo 3, photo 4, photo 5: no solid brass vintage hardware, no Talon\/YKK zipper, no unlined suede-back glove-tanned interior visible"
    ],
    "missing_information": [
        "Interior view, including any brand label, creed patch, or fabric tag.",
        "Close-up of zipper pull and all hardware.",
        "Bottom, corners, and complete strap views.",
        "Seller-stated material composition; the photos suggest synthetic or coated material but do not prove it.",
        "photo of interior lining and any interior brand \/ content tags not shown",
        "creed patch close-up not shown - no stamped leather patch visible in any photo",
        "bottom view showing corners and feet not shown",
        "hardware close-up showing zipper pull brand not shown"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible in the provided photos.",
        "Metallic quilted construction, generic buckle closure, and apparent synthetic material strongly suggest a non-Coach fashion bag rather than a vintage Coach piece."
    ],
    "possible_model_reasoning": [
        "No Coach identifiers visible in any of 6 photos - no creed, no wordmark, no turnlock, no hangtag - so no Coach model can be ranked",
        "Silhouette is oversized quilted metallic tote\/satchel with front buckle flap and zipper closure; does not match any vintage Coach classic catalog shape (City Bag, Willis, Court, Station, Duffle Sac, etc.) in leather, hardware, or construction",
        "Material and construction point to modern fast-fashion synthetic quilted bag, consistent with seller listing as no brand",
        "Condition: seller states EUC used once with no flaws; photos 1-6 show intact quilting and handles with no obvious corner wear visible, but bottom, interior and close-ups not shown so grade capped"
    ],
    "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 and photo 6: Shiny matching-tone buckle and rectangular strap hardware; no Coach engraving visible.",
        "leather_description": "photo 1 and photo 2: Metallic rose-gold quilted material with smooth shiny surface; likely synthetic or coated material, but composition is not confirmed.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1 and photo 6: Two top shoulder handles attached with stitched strap tabs and rectangular hardware; seller states approximately 9-inch handle drop.",
        "stitching_description": "photo 1, photo 2, and photo 6: Visible machine stitching around quilted panels and trim; generally even, with no distinctive Coach construction identifiable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.004,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Exterior is an oversized metallic rose-gold quilted bag with a generic buckle-front closure, not a recognizable vintage Coach silhouette.",
                    "photo 2: Quilted synthetic-looking body and shiny matching trim are inconsistent with vintage Coach glove-tanned leather classics.",
                    "photo 1: No legible COACH wordmark, horse-and-carriage, leather hangtag, or creed patch is visible.",
                    "photo 6: Hardware appears lightweight\/plated and the front closure is a belt-style buckle rather than a Coach turnlock.",
                    "photo 3: The visible handle and body construction do not show distinctive Coach identifiers."
                ],
                "missing_information": [
                    "Interior view, including any brand label, creed patch, or fabric tag.",
                    "Close-up of zipper pull and all hardware.",
                    "Bottom, corners, and complete strap views.",
                    "Seller-stated material composition; the photos suggest synthetic or coated material but do not prove it."
                ],
                "authenticity_concerns": [
                    "No Coach identifiers are visible in the provided photos.",
                    "Metallic quilted construction, generic buckle closure, and apparent synthetic material strongly suggest a non-Coach fashion bag rather than a vintage Coach piece."
                ],
                "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 and photo 6: Shiny matching-tone buckle and rectangular strap hardware; no Coach engraving visible.",
                    "leather_description": "photo 1 and photo 2: Metallic rose-gold quilted material with smooth shiny surface; likely synthetic or coated material, but composition is not confirmed.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1 and photo 6: Two top shoulder handles attached with stitched strap tabs and rectangular hardware; seller states approximately 9-inch handle drop.",
                    "stitching_description": "photo 1, photo 2, and photo 6: Visible machine stitching around quilted panels and trim; generally even, with no distinctive Coach construction identifiable."
                },
                "possible_model_reasoning": [],
                "confidence": 0.86,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior lining and any interior brand \/ content tags not shown",
                    "creed patch close-up not shown - no stamped leather patch visible in any photo",
                    "bottom view showing corners and feet not shown",
                    "hardware close-up showing zipper pull brand not shown"
                ],
                "negative_evidence": [
                    "photo 1, photo 2, photo 5: oversized quilted diamond-stitched metallic rose-gold body with high sheen - faux\/PU-type finish, not vintage Coach glove-tanned cowhide",
                    "photo 1, photo 2, photo 6: no Coach creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1, photo 6: front buckle-strap flap detail with brass-tone buckle, not Coach turnlock geometry",
                    "photo 1-6: soft unstructured body that does not stand alone per seller, thin rolled handles with rivets - not classic Coach construction with solid brass turnlock \/ dogleash clips",
                    "photo 3, photo 4, photo 5: no solid brass vintage hardware, no Talon\/YKK zipper, no unlined suede-back glove-tanned interior visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone buckle on front flap strap and handle anchor rivets\/rings visible in photo 1 and photo 6; no turnlock, no stamped zipper pull visible; tone and finish appear plated modern, not solid vintage brass",
                    "leather_description": "rose-gold \/ copper metallic quilted diamond-stitched material with high gloss sheen in photo 1, photo 2, photo 4, photo 5; appears synthetic faux\/PU leather, not full-grain glove-tanned cowhide; soft and slouchy",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "diamond quilt stitching across body visible in photo 2, photo 4, photo 5; straight but large-scale quilting, not Coach classic matched stitching",
                    "strap_construction": "dual rolled top handles with riveted anchor tabs in photo 1, photo 3; seller states 9 inch shoulder drop; no detachable crossbody strap, no dogleash clips, no buckle-adjustment shown",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifiers visible in any of 6 photos - no creed, no wordmark, no turnlock, no hangtag - so no Coach model can be ranked",
                    "Silhouette is oversized quilted metallic tote\/satchel with front buckle flap and zipper closure; does not match any vintage Coach classic catalog shape (City Bag, Willis, Court, Station, Duffle Sac, etc.) in leather, hardware, or construction",
                    "Material and construction point to modern fast-fashion synthetic quilted bag, consistent with seller listing as no brand",
                    "Condition: seller states EUC used once with no flaws; photos 1-6 show intact quilting and handles with no obvious corner wear visible, but bottom, interior and close-ups not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17721,
            "output_tokens": 635,
            "total_tokens": 18356,
            "estimated_cost_usd": 0.008612
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18057,
            "output_tokens": 1380,
            "total_tokens": 19437,
            "estimated_cost_usd": 0.004715
        }
    ]
}