Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.64,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.9,
    "recommended_max_bid": 9,
    "estimated_resale_low": 8,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag is shown as a modern saddle-shaped crossbody with a prominent decorative buckle and color-blocked panels, not a recognizable vintage Coach silhouette.",
        "photo 3: the product graphic shows a magnetic-snap closure and modern compartment construction rather than a vintage Coach turnlock.",
        "photo 3: the visible hardware appears bright\/plated and fashion-oriented, with no visible Coach engraving.",
        "photo 4: the interior appears fabric-lined and divided into multiple modern compartments; the listing states polyester lining.",
        "photo 1: no Coach wordmark, horse-and-carriage, creed patch, or hangtag is visible.",
        "photo 1: the exterior appears synthetic\/textured rather than vintage glove-tanned cowhide.",
        "photo 2: the listing uses generic promotional imagery rather than detailed product\/authentication photos.",
        "photo 1,3: two-tone black\/brown saddle flap with center buckle strap and magnetic snap - no turnlock geometry",
        "photo 2,4: fabric\/polyester interior with multiple slip pockets and card slots - not unlined glove-tanned suede",
        "seller states faux\/vegan lychee-grain leather with polyester lining and brand new condition - excludes vintage Coach materials",
        "photo 1-5: catalog-style stock graphics, thin synthetic strap, plated buckle hardware - modern fast-fashion construction"
    ],
    "missing_information": [
        "photo request: clear interior-wall and pocket photos to verify whether any brand label or creed patch exists.",
        "photo request: close-ups of all hardware, zipper pulls, closure, strap attachments, and any interior tags.",
        "photo request: non-promotional front, back, bottom, side, and interior photos of the actual item.",
        "photo 1-5: no creed patch shown - request interior back-wall close-up if verification needed",
        "photo 3-4: no legible maker wordmark, hardware engraving, or country line visible",
        "photo 4: interior fabric tag \/ care tag not shown"
    ],
    "authenticity_concerns": [
        "The stated faux\/vegan leather and polyester lining are inconsistent with the classic vintage Coach glove-tanned leather construction.",
        "The bag has modern synthetic, color-blocked construction and a magnetic-snap\/compartment design with no visible Coach identifier.",
        "The supplied images appear to be stock or catalog-style promotional images, so the actual item and its branding cannot be independently verified."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag lacks Coach identifiers and is explicitly described as vegan leather with polyester lining.",
        "The saddle silhouette is generic and widely used by modern unbranded fashion bags; silhouette alone does not support Coach attribution.",
        "Condition: New\/brand new as stated by the seller, but the supplied photos are promotional and do not document the actual item closely.",
        "No Coach model fits: saddle flap with buckle + magnetic snap, synthetic materials, fabric lining and modern proportions do not match any catalog style in 4.2",
        "Era reasoning: seller-stated vegan leather, polyester lining, magnetic snap, new condition and catalog graphics place in modern (2000s+), non-Coach",
        "Condition: New per seller; photos show catalog item without wear, but actual item condition unverified"
    ],
    "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 3 and photo 4: bright metal buckle\/fasteners and a magnetic snap are visible; no Coach-stamped hardware is visible.",
        "leather_description": "photo 1 and photo 3: smooth\/color-blocked, textured-looking synthetic material; seller states faux\/vegan lychee-grain leather.",
        "lining_description": "photo 4: light-colored textile lining and multiple compartment sections are visible; seller states polyester lining.",
        "strap_construction": "photo 1 and photo 3: narrow adjustable shoulder strap with small metal adjustment hardware; no vintage Coach-specific strap construction is visible.",
        "stitching_description": "photo 1 and photo 3: visible perimeter stitching appears regular, but detail is insufficient to assess construction quality."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0028,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag is shown as a modern saddle-shaped crossbody with a prominent decorative buckle and color-blocked panels, not a recognizable vintage Coach silhouette.",
                    "photo 3: the product graphic shows a magnetic-snap closure and modern compartment construction rather than a vintage Coach turnlock.",
                    "photo 3: the visible hardware appears bright\/plated and fashion-oriented, with no visible Coach engraving.",
                    "photo 4: the interior appears fabric-lined and divided into multiple modern compartments; the listing states polyester lining.",
                    "photo 1: no Coach wordmark, horse-and-carriage, creed patch, or hangtag is visible.",
                    "photo 1: the exterior appears synthetic\/textured rather than vintage glove-tanned cowhide.",
                    "photo 2: the listing uses generic promotional imagery rather than detailed product\/authentication photos."
                ],
                "missing_information": [
                    "photo request: clear interior-wall and pocket photos to verify whether any brand label or creed patch exists.",
                    "photo request: close-ups of all hardware, zipper pulls, closure, strap attachments, and any interior tags.",
                    "photo request: non-promotional front, back, bottom, side, and interior photos of the actual item."
                ],
                "authenticity_concerns": [
                    "The stated faux\/vegan leather and polyester lining are inconsistent with the classic vintage Coach glove-tanned leather construction.",
                    "The bag has modern synthetic, color-blocked construction and a magnetic-snap\/compartment design with no visible Coach identifier.",
                    "The supplied images appear to be stock or catalog-style promotional images, so the actual item and its branding cannot be independently verified."
                ],
                "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 3 and photo 4: bright metal buckle\/fasteners and a magnetic snap are visible; no Coach-stamped hardware is visible.",
                    "leather_description": "photo 1 and photo 3: smooth\/color-blocked, textured-looking synthetic material; seller states faux\/vegan lychee-grain leather.",
                    "lining_description": "photo 4: light-colored textile lining and multiple compartment sections are visible; seller states polyester lining.",
                    "strap_construction": "photo 1 and photo 3: narrow adjustable shoulder strap with small metal adjustment hardware; no vintage Coach-specific strap construction is visible.",
                    "stitching_description": "photo 1 and photo 3: visible perimeter stitching appears regular, but detail is insufficient to assess construction quality."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag lacks Coach identifiers and is explicitly described as vegan leather with polyester lining.",
                    "The saddle silhouette is generic and widely used by modern unbranded fashion bags; silhouette alone does not support Coach attribution.",
                    "Condition: New\/brand new as stated by the seller, but the supplied photos are promotional and do not document the actual item closely."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 8,
                "estimated_resale_low": 8,
                "estimated_resale_high": 25
            }
        },
        {
            "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": 8,
                "image_quality_score": 0.5,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1-5: no creed patch shown - request interior back-wall close-up if verification needed",
                    "photo 3-4: no legible maker wordmark, hardware engraving, or country line visible",
                    "photo 4: interior fabric tag \/ care tag not shown"
                ],
                "negative_evidence": [
                    "photo 1,3: two-tone black\/brown saddle flap with center buckle strap and magnetic snap - no turnlock geometry",
                    "photo 2,4: fabric\/polyester interior with multiple slip pockets and card slots - not unlined glove-tanned suede",
                    "seller states faux\/vegan lychee-grain leather with polyester lining and brand new condition - excludes vintage Coach materials",
                    "photo 1-5: catalog-style stock graphics, thin synthetic strap, plated buckle hardware - modern fast-fashion construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone buckle on center strap plus magnetic snap closure visible in photo 4; no solid-brass turnlock, no dogleash clips, no stamped pulls visible",
                    "leather_description": "synthetic faux\/vegan leather with lychee grain in two-tone black and brown; smooth coated appearance, not full-grain glove-tanned cowhide",
                    "lining_description": "light brown\/taupe fabric lining with slip pockets visible in photo 4; polyester per seller, not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching around flap edges visible in photo 3; thread matched to panels, no detail to suggest vintage Coach handwork",
                    "strap_construction": "thin flat adjustable crossbody strap in brown synthetic, photo 1 and 3",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: saddle flap with buckle + magnetic snap, synthetic materials, fabric lining and modern proportions do not match any catalog style in 4.2",
                    "Era reasoning: seller-stated vegan leather, polyester lining, magnetic snap, new condition and catalog graphics place in modern (2000s+), non-Coach",
                    "Condition: New per seller; photos show catalog item without wear, but actual item condition unverified"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.01
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17797,
            "output_tokens": 809,
            "total_tokens": 18606,
            "estimated_cost_usd": 0.00906
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18310,
            "output_tokens": 1293,
            "total_tokens": 19603,
            "estimated_cost_usd": 0.004696
        }
    ]
}