Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.765,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.91,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 20,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: listing shows a small black multi-zip crossbody with a gold-tone chain strap, not a recognizable vintage Coach silhouette.",
        "photo 3: visible construction uses multiple exterior zip compartments and chain attachment hardware; no Coach wordmark, horse-and-carriage, creed, or hangtag is visible.",
        "photo 4: interior is fabric-lined and appears synthetic, consistent with the seller-stated polyurethane material rather than vintage glove-tanned leather.",
        "photo 5: floral fabric, synthetic-looking body material, exposed serged\/overlocked edges, and fashion-style chain strap are inconsistent with classic vintage Coach construction.",
        "photo 6: exterior shows no Coach branding or identifier; hardware and construction appear generic.",
        "photo 4: brown polyester fabric lining with pilling - inconsistent with vintage Coach unlined glove-tanned interiors",
        "photo 1-3,6: black polyurethane faux-leather body per seller, with pebbled synthetic grain - not glove-tanned cowhide",
        "photo 1-3,6: triple-zip top with gold-tone chain crossbody strap - not a Coach classic silhouette, closure or strap type",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 3,6: bright gold-tone plated zippers and thin chain - not vintage solid brass turnlock\/dogleash hardware"
    ],
    "missing_information": [
        "photo 4: no readable maker label or fabric\/care tag is shown inside.",
        "photo 3: no close-up of zipper pulls or hardware markings.",
        "photo 1: seller-stated country of origin is not independently verifiable from the photos.",
        "photo 4: interior shown but no creed patch or Coach fabric tag visible - none expected on this construction",
        "photo 3,6: zipper pull brand stamps not legible",
        "photo 5: bottom\/corners not clearly shown"
    ],
    "authenticity_concerns": [
        "The polyurethane body, fabric lining, generic multi-zip construction, and fashion chain strap are inconsistent with the vintage Coach leather handbag population.",
        "No Coach identifier is visible, and the bag appears to be a generic modern synthetic crossbody rather than a Coach lookalike with a transplanted creed.",
        "photo 1-6: no Coach creed, wordmark, hangtag or solid-brass hardware visible to authenticate"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match: the triple-zip crossbody format, synthetic material, fabric lining, and chain strap are generic modern features.",
        "Condition: Good; visible light wear\/discoloration and reported interior pilling, with no major structural damage visible. This is an incomplete photo-based grade because odor and some interior areas cannot be assessed.",
        "No Coach catalog silhouette matches triple-zip polyurethane chain crossbody; turnlock, glove-tanned leather, creed and brass criteria all absent",
        "Seller states Polyurethane, China origin, pilling lining - consistent with modern fast-fashion crossbody, not any Coach era",
        "Condition: Good; light exterior wear and interior pilling per seller and photo 4, no structural damage seen"
    ],
    "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": "Gold-tone chain strap hardware and small zipper pulls are visible; no Coach engraving is visible.",
        "leather_description": "Black synthetic\/polyurethane-looking material; seller states polyurethane. Not leather.",
        "lining_description": "Brown\/taupe fabric lining with multiple compartments; pilling is visible or seller-reported.",
        "strap_construction": "Gold-tone chain strap attached at both upper sides; no leather adjustable strap is visible.",
        "stitching_description": "Visible perimeter stitching and exposed overlocked\/serged edging on the bag; construction appears mass-market."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0021,
    "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": 0.88,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: listing shows a small black multi-zip crossbody with a gold-tone chain strap, not a recognizable vintage Coach silhouette.",
                    "photo 3: visible construction uses multiple exterior zip compartments and chain attachment hardware; no Coach wordmark, horse-and-carriage, creed, or hangtag is visible.",
                    "photo 4: interior is fabric-lined and appears synthetic, consistent with the seller-stated polyurethane material rather than vintage glove-tanned leather.",
                    "photo 5: floral fabric, synthetic-looking body material, exposed serged\/overlocked edges, and fashion-style chain strap are inconsistent with classic vintage Coach construction.",
                    "photo 6: exterior shows no Coach branding or identifier; hardware and construction appear generic."
                ],
                "missing_information": [
                    "photo 4: no readable maker label or fabric\/care tag is shown inside.",
                    "photo 3: no close-up of zipper pulls or hardware markings.",
                    "photo 1: seller-stated country of origin is not independently verifiable from the photos."
                ],
                "authenticity_concerns": [
                    "The polyurethane body, fabric lining, generic multi-zip construction, and fashion chain strap are inconsistent with the vintage Coach leather handbag population.",
                    "No Coach identifier is visible, and the bag appears to be a generic modern synthetic crossbody rather than a Coach lookalike with a transplanted creed."
                ],
                "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": "Gold-tone chain strap hardware and small zipper pulls are visible; no Coach engraving is visible.",
                    "leather_description": "Black synthetic\/polyurethane-looking material; seller states polyurethane. Not leather.",
                    "lining_description": "Brown\/taupe fabric lining with multiple compartments; pilling is visible or seller-reported.",
                    "strap_construction": "Gold-tone chain strap attached at both upper sides; no leather adjustable strap is visible.",
                    "stitching_description": "Visible perimeter stitching and exposed overlocked\/serged edging on the bag; construction appears mass-market."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match: the triple-zip crossbody format, synthetic material, fabric lining, and chain strap are generic modern features.",
                    "Condition: Good; visible light wear\/discoloration and reported interior pilling, with no major structural damage visible. This is an incomplete photo-based grade because odor and some interior areas cannot be assessed."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-6: no Coach creed, wordmark, hangtag or solid-brass hardware visible to authenticate"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 4: interior shown but no creed patch or Coach fabric tag visible - none expected on this construction",
                    "photo 3,6: zipper pull brand stamps not legible",
                    "photo 5: bottom\/corners not clearly shown"
                ],
                "negative_evidence": [
                    "photo 4: brown polyester fabric lining with pilling - inconsistent with vintage Coach unlined glove-tanned interiors",
                    "photo 1-3,6: black polyurethane faux-leather body per seller, with pebbled synthetic grain - not glove-tanned cowhide",
                    "photo 1-3,6: triple-zip top with gold-tone chain crossbody strap - not a Coach classic silhouette, closure or strap type",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 3,6: bright gold-tone plated zippers and thin chain - not vintage solid brass turnlock\/dogleash hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone chain crossbody strap with small rings and gold-tone zipper sliders; thin, bright plated, not solid brass turnlock or dogleash clips",
                    "leather_description": "black pebbled-look polyurethane faux leather, soft slouchy drape with sheen in photo 6; not full-grain glove-tanned cowhide",
                    "lining_description": "brown\/taupe polyester fabric lining with slip pocket in photo 4, with pilling noted",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark straight machine stitching around zip openings; no detailed stress-point view",
                    "strap_construction": "gold-tone curb chain crossbody with black faux-leather shoulder pad section seen in photo 5",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach catalog silhouette matches triple-zip polyurethane chain crossbody; turnlock, glove-tanned leather, creed and brass criteria all absent",
                    "Seller states Polyurethane, China origin, pilling lining - consistent with modern fast-fashion crossbody, not any Coach era",
                    "Condition: Good; light exterior wear and interior pilling per seller and photo 4, no structural damage seen"
                ],
                "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": 17930,
            "output_tokens": 617,
            "total_tokens": 18547,
            "estimated_cost_usd": 0.008653
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18271,
            "output_tokens": 1203,
            "total_tokens": 19474,
            "estimated_cost_usd": 0.004617
        }
    ]
}