Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.03,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.69,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.83,
    "recommended_max_bid": 9,
    "estimated_resale_low": 5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly shaped as a shoulder handbag with a long chain strap and zip-top construction"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag",
        "photo 1: geometric metallic teal\/black exterior and dark chain strap do not resemble classic Coach glove-tanned leather construction",
        "photo 1: hardware is dark silver\/black-tone rather than the solid brass hardware typical of many vintage Coach classics",
        "photo 3: exterior appears synthetic or coated rather than visibly full-grain glove-tanned leather",
        "photos 1-4: the geometric pattern is not Coach Signature C canvas",
        "photo 1, photo 3: body is faceted geometric iridescent synthetic panels, not glove-tanned cowhide",
        "photo 1, photo 2: gunmetal-tone chain shoulder strap, not solid brass Coach hardware",
        "photo 1, photo 4: zip-top closure, no turnlock present",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 1-4: construction and materials inconsistent with vintage Coach classics"
    ],
    "missing_information": [
        "Interior view, including any brand label, creed patch, fabric tag, and lining",
        "Close-up of zipper pull and all hardware",
        "Bottom, side seams, corners, and strap attachment points",
        "Seller-stated material composition and measurements",
        "interior views including lining and any labels or creed patch not shown",
        "bottom, side and back views not shown",
        "hardware stamps and zipper brand not shown"
    ],
    "authenticity_concerns": [
        "The visible construction is consistent with an unbranded modern fashion handbag rather than Coach; no Coach identifier is visible",
        "The metallic geometric exterior and dark plated chain are inconsistent with a typical vintage Coach leather classic",
        "photo 1, photo 3, photo 4: geometric faceted iridescent panel design matches Bao Bao Issey Miyake-style fast-fashion bags, not any Coach catalog silhouette"
    ],
    "possible_model_reasoning": [
        "No Coach model is a strong match: the chain-strap rectangular silhouette and geometric metallic exterior are generic modern fashion-bag features.",
        "The seller title says Y2K, but this is untrusted and cannot establish age; the photographed materials and hardware support a modern 2000s-or-later non-Coach classification.",
        "Condition appears approximately Very Good from the visible exterior, with no major damage apparent; interior, odor, lining, and functional zipper condition are unknown.",
        "Not a Coach model; silhouette, faceted Bao Bao-style body, chain strap and synthetic materials have no match in Coach classic or modern catalog",
        "Decoding \/ era: no creed or serial visible to decode; materials and style indicate modern 2000s+ fast-fashion, non-Coach",
        "Condition: appears intact exterior in photos but cannot grade without interior, bottom and close-ups; assume Good used for pricing"
    ],
    "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: dark silver\/black-tone chain strap and zipper hardware; no Coach engraving is visible",
        "leather_description": "photo 1: smooth metallic teal\/black geometric exterior; material is not confirmed and does not visibly read as vintage glove-tanned leather",
        "lining_description": "not_visible",
        "strap_construction": "photos 1-4: long dark chain shoulder strap attached at the upper sides; no leather shoulder pad is visible",
        "stitching_description": "photos 1 and 3: visible dark stitched or raised geometric lines appear generally even; interior and stress-point stitching are not shown"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0016,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "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": [
                    "photo 1: clearly shaped as a shoulder handbag with a long chain strap and zip-top construction"
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag",
                    "photo 1: geometric metallic teal\/black exterior and dark chain strap do not resemble classic Coach glove-tanned leather construction",
                    "photo 1: hardware is dark silver\/black-tone rather than the solid brass hardware typical of many vintage Coach classics",
                    "photo 3: exterior appears synthetic or coated rather than visibly full-grain glove-tanned leather",
                    "photos 1-4: the geometric pattern is not Coach Signature C canvas"
                ],
                "missing_information": [
                    "Interior view, including any brand label, creed patch, fabric tag, and lining",
                    "Close-up of zipper pull and all hardware",
                    "Bottom, side seams, corners, and strap attachment points",
                    "Seller-stated material composition and measurements"
                ],
                "authenticity_concerns": [
                    "The visible construction is consistent with an unbranded modern fashion handbag rather than Coach; no Coach identifier is visible",
                    "The metallic geometric exterior and dark plated chain are inconsistent with a typical vintage Coach leather 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": "photo 1: dark silver\/black-tone chain strap and zipper hardware; no Coach engraving is visible",
                    "leather_description": "photo 1: smooth metallic teal\/black geometric exterior; material is not confirmed and does not visibly read as vintage glove-tanned leather",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-4: long dark chain shoulder strap attached at the upper sides; no leather shoulder pad is visible",
                    "stitching_description": "photos 1 and 3: visible dark stitched or raised geometric lines appear generally even; interior and stress-point stitching are not shown"
                },
                "possible_model_reasoning": [
                    "No Coach model is a strong match: the chain-strap rectangular silhouette and geometric metallic exterior are generic modern fashion-bag features.",
                    "The seller title says Y2K, but this is untrusted and cannot establish age; the photographed materials and hardware support a modern 2000s-or-later non-Coach classification.",
                    "Condition appears approximately Very Good from the visible exterior, with no major damage apparent; interior, odor, lining, and functional zipper condition are unknown."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1, photo 3, photo 4: geometric faceted iridescent panel design matches Bao Bao Issey Miyake-style fast-fashion bags, not any Coach catalog silhouette"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "interior views including lining and any labels or creed patch not shown",
                    "bottom, side and back views not shown",
                    "hardware stamps and zipper brand not shown"
                ],
                "negative_evidence": [
                    "photo 1, photo 3: body is faceted geometric iridescent synthetic panels, not glove-tanned cowhide",
                    "photo 1, photo 2: gunmetal-tone chain shoulder strap, not solid brass Coach hardware",
                    "photo 1, photo 4: zip-top closure, no turnlock present",
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 1-4: construction and materials inconsistent with vintage Coach classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gunmetal \/ dark silvertone curb chain shoulder strap, zip-top hardware partially visible",
                    "leather_description": "no leather visible; matte iridescent synthetic faceted triangular panels on mesh base, teal-black metallic",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible; panels bonded to base, no Coach-type matched stitching visible",
                    "strap_construction": "long non-adjustable metal chain strap attached with metal rings",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach model; silhouette, faceted Bao Bao-style body, chain strap and synthetic materials have no match in Coach classic or modern catalog",
                    "Decoding \/ era: no creed or serial visible to decode; materials and style indicate modern 2000s+ fast-fashion, non-Coach",
                    "Condition: appears intact exterior in photos but cannot grade without interior, bottom and close-ups; assume Good used for pricing"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 21871,
            "output_tokens": 720,
            "total_tokens": 22591,
            "estimated_cost_usd": 0.010476
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 22760,
            "output_tokens": 1119,
            "total_tokens": 23879,
            "estimated_cost_usd": 0.005447
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}