Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.035,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.5,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.735,
    "recommended_max_bid": 11,
    "estimated_resale_low": 10,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: three handbags are visible, but none shows a COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach-specific hardware.",
        "photo 1: the black and white bags have all-over diamond quilting and chain straps, a generic fashion-bag design rather than a documented vintage Coach classic.",
        "photo 1: the tan bag has a plain smooth exterior and conventional shoulder straps; no Coach identifier is visible.",
        "photo 1: black and white surfaces appear synthetic, coated, or imitation leather, though the material cannot be confirmed from this image.",
        "listing text: seller identifies only the tan bag as Universal Thread and calls the other two unlabeled; this is weak context, not Coach evidence.",
        "photo 1: three modern fast-fashion silhouettes - black quilted zip pouch, tan dome zip pouch, white quilted flap - none matches a vintage Coach catalog silhouette",
        "photo 1: quilted diamond stitching and thin dome pouch construction inconsistent with vintage glove-tanned Coach classics",
        "photo 1: thin gold-tone chain straps and narrow faux-leather straps, not solid brass dogleash \/ buckle Coach hardware",
        "photo 1: no turnlock, no leather hangtag, no COACH wordmark or horse-and-carriage visible",
        "photo 1: smooth uniform surface suggesting synthetic \/ faux leather, not full-grain glove-tanned cowhide with patina"
    ],
    "missing_information": [
        "photo 1: interiors, lining, bottoms, side panels, zipper pulls, and any sewn-in labels are not shown.",
        "photo 1: no close-ups of hardware, strap attachments, or material texture are provided.",
        "photo 1: request straight-on photos of every interior wall and pocket to check for any brand or creed patch.",
        "photo 1: request bottom, back, and zipper-pull photos for each bag.",
        "photo 1 only: no interior, creed, bottom, hardware close-up or scale views for any of the three bags",
        "lining material and zipper brand not visible",
        "hangtag \/ wordmark close-ups not provided"
    ],
    "authenticity_concerns": [
        "photo 1: no Coach identifiers or construction details are visible, so the bags currently read as generic fashion handbags rather than Coach.",
        "photo 1: quilted bodies with chain straps are common lookalike\/fashion-bag constructions and do not support a Coach attribution."
    ],
    "possible_model_reasoning": [
        "photo 1: no Coach model can be matched reliably from the generic silhouettes and quilting.",
        "photo 1: the tan bag is seller-stated to be Universal Thread, but its label is not visible in the photo.",
        "photo 1: condition appears approximately Good to Very Good from the single exterior view, with no obvious major damage; interiors, odor, corners, and functional details remain unknown.",
        "no Coach identifier visible on any bag in the single overhead photo; construction, materials and chain straps point to modern non-Coach fast fashion",
        "seller text states one tan bag is Universal Thread brand and other two unlabeled, consistent with non-Coach lot",
        "Condition: not graded - single distant photo, no corner, interior or strap detail to grade"
    ],
    "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: gold-tone chain straps and conventional strap hardware are visible; no turnlock, Coach engraving, or other distinctive Coach hardware is visible.",
        "leather_description": "photo 1: tan bag has a smooth matte-looking brown\/tan exterior; black and white bags have diamond-quilted exteriors. Material is not confirmable and may be synthetic or coated.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: black and white bags use chain shoulder straps with sections of dark or light material; tan bag has two long, adjustable-looking shoulder straps. Attachment and construction details are limited.",
        "stitching_description": "photo 1: exterior machine stitching appears generally even around the quilted panels and edges; close stress-point stitching is not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0005,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.55,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: three handbags are visible, but none shows a COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach-specific hardware.",
                    "photo 1: the black and white bags have all-over diamond quilting and chain straps, a generic fashion-bag design rather than a documented vintage Coach classic.",
                    "photo 1: the tan bag has a plain smooth exterior and conventional shoulder straps; no Coach identifier is visible.",
                    "photo 1: black and white surfaces appear synthetic, coated, or imitation leather, though the material cannot be confirmed from this image.",
                    "listing text: seller identifies only the tan bag as Universal Thread and calls the other two unlabeled; this is weak context, not Coach evidence."
                ],
                "missing_information": [
                    "photo 1: interiors, lining, bottoms, side panels, zipper pulls, and any sewn-in labels are not shown.",
                    "photo 1: no close-ups of hardware, strap attachments, or material texture are provided.",
                    "photo 1: request straight-on photos of every interior wall and pocket to check for any brand or creed patch.",
                    "photo 1: request bottom, back, and zipper-pull photos for each bag."
                ],
                "authenticity_concerns": [
                    "photo 1: no Coach identifiers or construction details are visible, so the bags currently read as generic fashion handbags rather than Coach.",
                    "photo 1: quilted bodies with chain straps are common lookalike\/fashion-bag constructions and do not support a Coach attribution."
                ],
                "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: gold-tone chain straps and conventional strap hardware are visible; no turnlock, Coach engraving, or other distinctive Coach hardware is visible.",
                    "leather_description": "photo 1: tan bag has a smooth matte-looking brown\/tan exterior; black and white bags have diamond-quilted exteriors. Material is not confirmable and may be synthetic or coated.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: black and white bags use chain shoulder straps with sections of dark or light material; tan bag has two long, adjustable-looking shoulder straps. Attachment and construction details are limited.",
                    "stitching_description": "photo 1: exterior machine stitching appears generally even around the quilted panels and edges; close stress-point stitching is not visible."
                },
                "possible_model_reasoning": [
                    "photo 1: no Coach model can be matched reliably from the generic silhouettes and quilting.",
                    "photo 1: the tan bag is seller-stated to be Universal Thread, but its label is not visible in the photo.",
                    "photo 1: condition appears approximately Good to Very Good from the single exterior view, with no obvious major damage; interiors, odor, corners, and functional details remain unknown."
                ],
                "confidence": 0.72,
                "recommended_max_bid": 10,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 45,
                "estimated_resale_low": 15,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1 only: no interior, creed, bottom, hardware close-up or scale views for any of the three bags",
                    "lining material and zipper brand not visible",
                    "hangtag \/ wordmark close-ups not provided"
                ],
                "negative_evidence": [
                    "photo 1: three modern fast-fashion silhouettes - black quilted zip pouch, tan dome zip pouch, white quilted flap - none matches a vintage Coach catalog silhouette",
                    "photo 1: quilted diamond stitching and thin dome pouch construction inconsistent with vintage glove-tanned Coach classics",
                    "photo 1: thin gold-tone chain straps and narrow faux-leather straps, not solid brass dogleash \/ buckle Coach hardware",
                    "photo 1: no turnlock, no leather hangtag, no COACH wordmark or horse-and-carriage visible",
                    "photo 1: smooth uniform surface suggesting synthetic \/ faux leather, not full-grain glove-tanned cowhide with patina"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone chain straps on black and white bags; thin brown shoulder strap on tan bag; no turnlock or solid brass hardware visible",
                    "leather_description": "smooth uniform low-texture material appearing synthetic \/ faux leather on all three bags; no glove-tanned grain, patina or natural scars visible",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "diamond quilt stitching on black and white bags; plain edge stitch on tan bag; no tight matched-thread vintage Coach stitching visible",
                    "strap_construction": "black bag: black faux-leather shoulder section plus gold-tone chain; tan bag: narrow adjustable faux-leather crossbody strap; white bag: gold-tone chain crossbody strap",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "no Coach identifier visible on any bag in the single overhead photo; construction, materials and chain straps point to modern non-Coach fast fashion",
                    "seller text states one tan bag is Universal Thread brand and other two unlabeled, consistent with non-Coach lot",
                    "Condition: not graded - single distant photo, no corner, interior or strap detail to grade"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 15632,
            "output_tokens": 902,
            "total_tokens": 16534,
            "estimated_cost_usd": 0.008418
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 15957,
            "output_tokens": 1083,
            "total_tokens": 17040,
            "estimated_cost_usd": 0.004058
        }
    ]
}