Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.03,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.695,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.88,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: seller describes the bag as vegan faux ostrich, which is inconsistent with classic vintage Coach glove-tanned leather.",
        "photo 1: large structured handbag with top handles and top zipper is visible, but the silhouette is not a distinctive vintage Coach model.",
        "photo 1: bright silver-tone rectangular lock and padlock hardware do not match the solid brass hardware typical of many vintage Coach classics.",
        "photo 2: exterior is covered in ostrich-like embossed material rather than recognizable Coach leather or signature canvas.",
        "photo 5: no legible COACH wordmark, horse-and-carriage, creed patch, or serial\/style number is visible.",
        "photo 1,2,3,4: fuchsia faux ostrich-embossed vegan material, seller states vegan - faux\/PU excludes vintage Coach per skill",
        "photo 1,2,5: Birkin-style belted front with silver-tone padlock closure, not Coach turnlock geometry",
        "photo 1,2,5: bright silver-tone hardware throughout, not vintage solid brass",
        "photo 1-5: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 3: top-zip compartment construction with no unlined glove-tanned suede back visible"
    ],
    "missing_information": [
        "photo 3: interior is only partially visible; a complete emptied-interior photo would confirm whether any brand label or creed exists.",
        "photo 1: no close-up of the full interior label, care tag, or zipper-pull markings.",
        "photo 1: seller-stated material is vegan, but close-up confirmation of the synthetic material and construction would be useful.",
        "interior views emptied showing lining and any labels or creed patch not shown",
        "back, side and bottom corner close-ups for condition grading",
        "hardware brand stamps on zipper pull and padlock not shown",
        "photo 3: top zip area is partially visible but lining material and interior pockets not visible"
    ],
    "authenticity_concerns": [
        "photo 1: the seller's vegan\/faux ostrich description and embossed synthetic-looking surface are strong evidence this is a non-Coach lookalike or fashion handbag.",
        "photo 1: silver-tone lock and padlock styling are inconsistent with a typical vintage Coach classic and no Coach identifier offsets that concern.",
        "photo 1: large padlock decoration and decorative strap arrangement are not recognizable Coach construction cues."
    ],
    "possible_model_reasoning": [
        "No Coach model fits: silhouette is a Birkin-style padlock tote with belted front and dual rolled handles, not a catalogued vintage Coach shape",
        "Material and hardware (vegan embossed, silver-tone padlock) are inconsistent with 1970s-1990s glove-tanned brass Coach classics",
        "Condition: appears Good to Very Good externally with no obvious corner wear in photo 4, but interior not shown so grade capped and lining unknown"
    ],
    "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 and photo 5: silver-tone rectangular clasp with a hanging padlock; no readable brand engraving is visible.",
        "leather_description": "photo 1 and photo 4: pink\/fuchsia ostrich-pattern embossed material; seller identifies it as vegan\/faux ostrich, and it does not visibly resemble glove-tanned Coach leather.",
        "lining_description": "photo 3: pink interior\/zipper area is partially visible; complete lining and labels are not shown.",
        "strap_construction": "photo 1 and photo 2: two attached rolled or folded top handles plus decorative leather straps and a long dangling strap; construction is visible but not identifiable as Coach.",
        "stitching_description": "photo 1, photo 2, and photo 4: visible machine stitching appears generally even, with no clear Coach-specific construction detail."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0031,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: seller describes the bag as vegan faux ostrich, which is inconsistent with classic vintage Coach glove-tanned leather.",
                    "photo 1: large structured handbag with top handles and top zipper is visible, but the silhouette is not a distinctive vintage Coach model.",
                    "photo 1: bright silver-tone rectangular lock and padlock hardware do not match the solid brass hardware typical of many vintage Coach classics.",
                    "photo 2: exterior is covered in ostrich-like embossed material rather than recognizable Coach leather or signature canvas.",
                    "photo 5: no legible COACH wordmark, horse-and-carriage, creed patch, or serial\/style number is visible."
                ],
                "missing_information": [
                    "photo 3: interior is only partially visible; a complete emptied-interior photo would confirm whether any brand label or creed exists.",
                    "photo 1: no close-up of the full interior label, care tag, or zipper-pull markings.",
                    "photo 1: seller-stated material is vegan, but close-up confirmation of the synthetic material and construction would be useful."
                ],
                "authenticity_concerns": [
                    "photo 1: the seller's vegan\/faux ostrich description and embossed synthetic-looking surface are strong evidence this is a non-Coach lookalike or fashion handbag.",
                    "photo 1: silver-tone lock and padlock styling are inconsistent with a typical vintage Coach classic and no Coach identifier offsets that concern.",
                    "photo 1: large padlock decoration and decorative strap arrangement are not recognizable Coach construction cues."
                ],
                "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 and photo 5: silver-tone rectangular clasp with a hanging padlock; no readable brand engraving is visible.",
                    "leather_description": "photo 1 and photo 4: pink\/fuchsia ostrich-pattern embossed material; seller identifies it as vegan\/faux ostrich, and it does not visibly resemble glove-tanned Coach leather.",
                    "lining_description": "photo 3: pink interior\/zipper area is partially visible; complete lining and labels are not shown.",
                    "strap_construction": "photo 1 and photo 2: two attached rolled or folded top handles plus decorative leather straps and a long dangling strap; construction is visible but not identifiable as Coach.",
                    "stitching_description": "photo 1, photo 2, and photo 4: visible machine stitching appears generally even, with no clear Coach-specific construction detail."
                },
                "possible_model_reasoning": [],
                "confidence": 0.88,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "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": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "interior views emptied showing lining and any labels or creed patch not shown",
                    "back, side and bottom corner close-ups for condition grading",
                    "hardware brand stamps on zipper pull and padlock not shown",
                    "photo 3: top zip area is partially visible but lining material and interior pockets not visible"
                ],
                "negative_evidence": [
                    "photo 1,2,3,4: fuchsia faux ostrich-embossed vegan material, seller states vegan - faux\/PU excludes vintage Coach per skill",
                    "photo 1,2,5: Birkin-style belted front with silver-tone padlock closure, not Coach turnlock geometry",
                    "photo 1,2,5: bright silver-tone hardware throughout, not vintage solid brass",
                    "photo 1-5: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 3: top-zip compartment construction with no unlined glove-tanned suede back visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone hardware; front belt strap with rectangular hasp plate and hanging padlock (photo 5); D-rings at sides; top zippers with metal pulls (photo 3)",
                    "leather_description": "fuchsia pink faux ostrich-embossed vegan material, all-over quill bump pattern (photo 1-4)",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-on-tone stitching visible around front belt and flap edges (photo 5), otherwise not close enough to assess evenness",
                    "strap_construction": "dual rolled top handles in same faux-ostrich material, attached through top edge (photo 1-3); no detachable shoulder strap shown",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: silhouette is a Birkin-style padlock tote with belted front and dual rolled handles, not a catalogued vintage Coach shape",
                    "Material and hardware (vegan embossed, silver-tone padlock) are inconsistent with 1970s-1990s glove-tanned brass Coach classics",
                    "Condition: appears Good to Very Good externally with no obvious corner wear in photo 4, but interior not shown so grade capped and lining unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
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            "output_tokens": 724,
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            "estimated_cost_usd": 0.008782
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        {
            "model_name": "meta:muse-spark-1.3-contributor",
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}