Vintage Coach Hunter

{
    "is_handbag_probability": 0.64,
    "coach_probability": 0.01,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.01,
    "image_quality_score": 0.865,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.955,
    "recommended_max_bid": 10,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag\/backpack convertible with shoulder straps and a detachable long strap.",
        "photo 2: The bag has a visible kangaroo-style animal emblem and a non-Coach brand wordmark.",
        "photo 5: Product information states PU leather, which is not vintage Coach glove-tanned leather."
    ],
    "negative_evidence": [
        "photo 1: The bag has a glossy\/textured synthetic-looking surface consistent with PU rather than Coach glove-tanned cowhide.",
        "photo 2: The visible logo is an animal emblem and non-Coach wordmark, not COACH or a Coach horse-and-carriage mark.",
        "photo 3: The prominent heart charm, decorative keys, and black plated hardware do not match a vintage Coach classic construction.",
        "photo 5: The lining appears to be synthetic fabric, and the product is presented as a modern fashion backpack with multiple zippers.",
        "photo 6: The product image explicitly labels the material as PU leather and shows a modern backpack design.",
        "photo 1: purple pebbled PU synthetic backpack, not glove-tanned leather - seller title states PU Leather",
        "photo 2: kangaroo logo and BIGEDAISHU \/ MAIQIDAISHU branding on front and top-left, not COACH wordmark or horse-and-carriage",
        "photo 3 panel 4: signature metal logo reads MAIQIDAISHU with kangaroo, panel 5 zippers read MQDS",
        "photo 3: gunmetal\/black plated hardware, detachable side hooks, modern zippers - not solid brass vintage Coach hardware",
        "photo 5: brown synthetic fabric lining in interior view, not unlined suede",
        "photo 4: mass-produced new catalog item offered in Red\/Purple\/Blue\/Black, stock product images",
        "photo 5: backpack straps with buckles plus convertible crossbody strap, heart charm with keys - no turnlock, no hangtag, no Coach silhouette"
    ],
    "missing_information": [
        "A real interior photograph rather than a product render, including any sewn-in brand or care label.",
        "Close-up photographs of all hardware, zipper pulls, and hangtags.",
        "Seller photographs showing the actual item rather than catalog-style images.",
        "No Coach creed patch shown - none expected for this branded PU backpack",
        "No interior creed close-up needed; bag is positively identified as other brand"
    ],
    "authenticity_concerns": [
        "photo 2: Visible non-Coach animal emblem and wordmark indicate a different brand or lookalike product.",
        "photo 5: PU construction is inconsistent with the leather materials used in the vintage Coach population.",
        "photo 6: Modern synthetic lining, plated hardware, and backpack styling are inconsistent with the vintage Coach catalog reviewed."
    ],
    "possible_model_reasoning": [
        "No Coach model is a plausible match: the design is a modern convertible backpack with a front flap, multiple zippers, decorative heart and keys, and a non-Coach animal logo.",
        "The visible features fit a contemporary low-cost PU fashion backpack rather than a vintage Coach handbag.",
        "Condition cannot be reliably graded from catalog renders; the item is presented as new, but actual condition and odor are unverified.",
        "Not a Coach model; silhouette is modern convertible mini-backpack with flap and heart-key charm, inconsistent with any vintage Coach catalog style",
        "Branding positively identifies maker as MAIQIDAISHU \/ BIGEDAISHU \/ XINZHIDAISHU kangaroo brand in photos 1,2,3,4",
        "Materials (PU, plated hardware, fabric lining) place in modern (2000s+), non-Coach era per triage rule",
        "Condition: New catalog stock images, no wear visible"
    ],
    "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": "Black\/dark plated clips, zippers, decorative key shapes, heart charm, and small branded hanging tags are visible; no Coach-stamped hardware is visible.",
        "leather_description": "Purple textured PU\/synthetic material, as stated in the listing title and shown in the product information graphic; not natural leather.",
        "lining_description": "Synthetic-looking fabric lining is visible in the open-bag product image.",
        "strap_construction": "Two adjustable backpack straps, a top handle, and a detachable long shoulder strap with clips are visible.",
        "stitching_description": "Product-render images show regular machine stitching and finished synthetic-material edges; actual stitch quality cannot be independently verified."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0166,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.01,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.01,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag\/backpack convertible with shoulder straps and a detachable long strap.",
                    "photo 2: The bag has a visible kangaroo-style animal emblem and a non-Coach brand wordmark.",
                    "photo 5: Product information states PU leather, which is not vintage Coach glove-tanned leather."
                ],
                "negative_evidence": [
                    "photo 1: The bag has a glossy\/textured synthetic-looking surface consistent with PU rather than Coach glove-tanned cowhide.",
                    "photo 2: The visible logo is an animal emblem and non-Coach wordmark, not COACH or a Coach horse-and-carriage mark.",
                    "photo 3: The prominent heart charm, decorative keys, and black plated hardware do not match a vintage Coach classic construction.",
                    "photo 5: The lining appears to be synthetic fabric, and the product is presented as a modern fashion backpack with multiple zippers.",
                    "photo 6: The product image explicitly labels the material as PU leather and shows a modern backpack design."
                ],
                "missing_information": [
                    "A real interior photograph rather than a product render, including any sewn-in brand or care label.",
                    "Close-up photographs of all hardware, zipper pulls, and hangtags.",
                    "Seller photographs showing the actual item rather than catalog-style images."
                ],
                "authenticity_concerns": [
                    "photo 2: Visible non-Coach animal emblem and wordmark indicate a different brand or lookalike product.",
                    "photo 5: PU construction is inconsistent with the leather materials used in the vintage Coach population.",
                    "photo 6: Modern synthetic lining, plated hardware, and backpack styling are inconsistent with the vintage Coach catalog reviewed."
                ],
                "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": true,
                    "hardware_description": "Black\/dark plated clips, zippers, decorative key shapes, heart charm, and small branded hanging tags are visible; no Coach-stamped hardware is visible.",
                    "leather_description": "Purple textured PU\/synthetic material, as stated in the listing title and shown in the product information graphic; not natural leather.",
                    "lining_description": "Synthetic-looking fabric lining is visible in the open-bag product image.",
                    "strap_construction": "Two adjustable backpack straps, a top handle, and a detachable long shoulder strap with clips are visible.",
                    "stitching_description": "Product-render images show regular machine stitching and finished synthetic-material edges; actual stitch quality cannot be independently verified."
                },
                "possible_model_reasoning": [
                    "No Coach model is a plausible match: the design is a modern convertible backpack with a front flap, multiple zippers, decorative heart and keys, and a non-Coach animal logo.",
                    "The visible features fit a contemporary low-cost PU fashion backpack rather than a vintage Coach handbag.",
                    "Condition cannot be reliably graded from catalog renders; the item is presented as new, but actual condition and odor are unverified."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.97,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.85,
                "is_handbag_probability": 0.3,
                "missing_information": [
                    "No Coach creed patch shown - none expected for this branded PU backpack",
                    "No interior creed close-up needed; bag is positively identified as other brand"
                ],
                "negative_evidence": [
                    "photo 1: purple pebbled PU synthetic backpack, not glove-tanned leather - seller title states PU Leather",
                    "photo 2: kangaroo logo and BIGEDAISHU \/ MAIQIDAISHU branding on front and top-left, not COACH wordmark or horse-and-carriage",
                    "photo 3 panel 4: signature metal logo reads MAIQIDAISHU with kangaroo, panel 5 zippers read MQDS",
                    "photo 3: gunmetal\/black plated hardware, detachable side hooks, modern zippers - not solid brass vintage Coach hardware",
                    "photo 5: brown synthetic fabric lining in interior view, not unlined suede",
                    "photo 4: mass-produced new catalog item offered in Red\/Purple\/Blue\/Black, stock product images",
                    "photo 5: backpack straps with buckles plus convertible crossbody strap, heart charm with keys - no turnlock, no hangtag, no Coach silhouette"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gunmetal \/ black-plated zippers, D-rings, lobster clasps and side hooks; modern plated finish, not solid brass; no turnlock",
                    "leather_description": "purple pebbled PU \/ synthetic leather as stated in title; uniform grain, no glove-tanned patina",
                    "lining_description": "dark brown fabric lining visible in photo 5 interior view",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching tone-matched to purple body, visible around flap and trim",
                    "strap_construction": "dual backpack straps with buckle adjustment plus detachable single shoulder\/crossbody strap on lobster clips; top handle",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach model; silhouette is modern convertible mini-backpack with flap and heart-key charm, inconsistent with any vintage Coach catalog style",
                    "Branding positively identifies maker as MAIQIDAISHU \/ BIGEDAISHU \/ XINZHIDAISHU kangaroo brand in photos 1,2,3,4",
                    "Materials (PU, plated hardware, fabric lining) place in modern (2000s+), non-Coach era per triage rule",
                    "Condition: New catalog stock images, no wear visible"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.01
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 24695,
            "output_tokens": 862,
            "total_tokens": 25557,
            "estimated_cost_usd": 0.011947
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 25507,
            "output_tokens": 1169,
            "total_tokens": 26676,
            "estimated_cost_usd": 0.006037
        }
    ]
}