Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.31,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.8,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: Listing title identifies the material as PU leather, which is inconsistent with the classic vintage Coach leather population.",
        "photo 1: Brown all-over geometric\/monogram-style print does not visibly show Coach's paired-C Signature pattern or a Coach wordmark.",
        "photo 1: The bag appears modern and mass-produced, with multiple handles, a detachable shoulder strap, and bright gold-tone hardware.",
        "photo 1: Seller identifies the bag as Unbranded; no visible Coach identifier is present.",
        "photo 1: all-over brown monogram-coated material, not Coach paired-C jacquard with mirror symmetry",
        "photo 1: new-looking structured satchel with top handles, detachable shoulder strap, tassel\/charm hardware - generic fast-fashion silhouette, no Coach classic construction",
        "seller title states 'New' 'PU Leather Handb' and seller_brand Unbranded - synthetic material inconsistent with vintage Coach glove-tanned leather"
    ],
    "missing_information": [
        "photo 1 is small and low-resolution; request a clear interior photograph, bottom, sides, strap attachments, hardware close-ups, and any interior labels or stamps.",
        "Request a straight-on close-up of any interior leather or fabric tag.",
        "Request seller-confirmed material composition and dimensions.",
        "creed patch \/ interior wall not shown - photo 1 only exterior front view",
        "hardware close-ups, zipper-pull stamps, Made-in line not shown",
        "back, bottom, side, interior, strap-detail and scale views not shown"
    ],
    "authenticity_concerns": [
        "photo 1: The PU material and generic monogram-like print are lookalike signals rather than evidence of Coach manufacture.",
        "photo 1: No creed patch, serial\/style number, Coach wordmark, or horse-and-carriage identifier is visible.",
        "photo 1: generic C-like all-over monogram print used as brand-evoking motif, not Coach paired-C evidence",
        "listing is new PU mass-produced 'Unbranded' bag - fast-fashion \/ replica signal per skill"
    ],
    "possible_model_reasoning": [
        "The structured multi-handle shoulder-bag silhouette is generic and does not sufficiently match a specific Coach model.",
        "The visible all-over print and stated PU construction point to a modern non-Coach fashion bag rather than vintage Coach.",
        "Condition cannot be reliably graded from the single small photo; interior, bottom, and corners are not shown.",
        "photo 1 silhouette and PU monogram construction does not match any vintage Coach catalog style; no creed, wordmark, solid-brass turnlock or unlined glove-tanned leather to support Coach manufacture",
        "Condition: New-appearing per seller title but only one distant photo, cannot grade wear; treated as generic new PU bag"
    ],
    "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: Bright gold-tone hardware and zipper pulls are visible; details are too small to assess construction or engravings.",
        "leather_description": "photo 1: Seller states PU leather; the image shows a dark brown printed synthetic-looking exterior.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: Two short top handles and a long detachable shoulder strap are visible; attachment details are not clear.",
        "stitching_description": "photo 1: Stitching is not resolvable at this image size."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0002,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.95,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.32,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Listing title identifies the material as PU leather, which is inconsistent with the classic vintage Coach leather population.",
                    "photo 1: Brown all-over geometric\/monogram-style print does not visibly show Coach's paired-C Signature pattern or a Coach wordmark.",
                    "photo 1: The bag appears modern and mass-produced, with multiple handles, a detachable shoulder strap, and bright gold-tone hardware.",
                    "photo 1: Seller identifies the bag as Unbranded; no visible Coach identifier is present."
                ],
                "missing_information": [
                    "photo 1 is small and low-resolution; request a clear interior photograph, bottom, sides, strap attachments, hardware close-ups, and any interior labels or stamps.",
                    "Request a straight-on close-up of any interior leather or fabric tag.",
                    "Request seller-confirmed material composition and dimensions."
                ],
                "authenticity_concerns": [
                    "photo 1: The PU material and generic monogram-like print are lookalike signals rather than evidence of Coach manufacture.",
                    "photo 1: No creed patch, serial\/style number, Coach wordmark, or horse-and-carriage identifier is visible."
                ],
                "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: Bright gold-tone hardware and zipper pulls are visible; details are too small to assess construction or engravings.",
                    "leather_description": "photo 1: Seller states PU leather; the image shows a dark brown printed synthetic-looking exterior.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Two short top handles and a long detachable shoulder strap are visible; attachment details are not clear.",
                    "stitching_description": "photo 1: Stitching is not resolvable at this image size."
                },
                "possible_model_reasoning": [
                    "The structured multi-handle shoulder-bag silhouette is generic and does not sufficiently match a specific Coach model.",
                    "The visible all-over print and stated PU construction point to a modern non-Coach fashion bag rather than vintage Coach.",
                    "Condition cannot be reliably graded from the single small photo; interior, bottom, and corners are not shown."
                ],
                "confidence": 0.78,
                "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: generic C-like all-over monogram print used as brand-evoking motif, not Coach paired-C evidence",
                    "listing is new PU mass-produced 'Unbranded' bag - fast-fashion \/ replica signal per skill"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.82,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.3,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "creed patch \/ interior wall not shown - photo 1 only exterior front view",
                    "hardware close-ups, zipper-pull stamps, Made-in line not shown",
                    "back, bottom, side, interior, strap-detail and scale views not shown"
                ],
                "negative_evidence": [
                    "photo 1: all-over brown monogram-coated material, not Coach paired-C jacquard with mirror symmetry",
                    "photo 1: new-looking structured satchel with top handles, detachable shoulder strap, tassel\/charm hardware - generic fast-fashion silhouette, no Coach classic construction",
                    "seller title states 'New' 'PU Leather Handb' and seller_brand Unbranded - synthetic material inconsistent with vintage Coach glove-tanned leather"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone hardware with front zipper pulls and hanging tassel\/charm; no turnlock visible; engravings not legible",
                    "leather_description": "coated PU with all-over dark monogram print on brown ground; smooth synthetic look, not glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible in low-resolution distant view",
                    "strap_construction": "two short top handles plus detachable longer shoulder strap visible at side",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "photo 1 silhouette and PU monogram construction does not match any vintage Coach catalog style; no creed, wordmark, solid-brass turnlock or unlined glove-tanned leather to support Coach manufacture",
                    "Condition: New-appearing per seller title but only one distant photo, cannot grade wear; treated as generic new PU bag"
                ],
                "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": 15111,
            "output_tokens": 632,
            "total_tokens": 15743,
            "estimated_cost_usd": 0.007561
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 15390,
            "output_tokens": 1648,
            "total_tokens": 17038,
            "estimated_cost_usd": 0.004396
        }
    ]
}