Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.025,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.765,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: Adjustable textile floral strap, generic metal clip, and smooth glossy brown body do not match the typical construction cues of a vintage Coach classic.",
        "photo 2: Exterior has a plain rectangular crossbody silhouette with no visible Coach wordmark, carriage, hangtag, creed, or other brand identifier.",
        "photo 3: Interior appears to use patterned synthetic fabric lining with multiple pockets, a construction style inconsistent with many classic unlined glove-tanned Coach bags.",
        "photo 1: Strap and bag hardware appear generic and no Coach engraving is visible.",
        "Listing text identifies the item as no brand; this is weak context only and is consistent with the absence of Coach identifiers.",
        "photo 3: fully lined interior in shiny taupe polyester herringbone fabric, not unlined suede-back glove-tanned leather",
        "photo 2: smooth high-gloss brown material with coated \/ faux-leather look and painted top edge, not matte glove-tanned cowhide",
        "photo 1, photo 2: wide woven fabric guitar strap with purple floral jacquard, not Coach leather strap with brass slides or dogleash clips",
        "photo 1, photo 2, photo 3: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag, no turnlock visible",
        "photo 2: zip-top closure with thin brass-tone lobster-claw strap clips; vintage Coach classics use turnlock flap and solid brass hardware"
    ],
    "missing_information": [
        "photo 4: Full back and bottom views, including all corners and base construction.",
        "photo 5: Close-up of every interior label, seam tag, zipper pull, and hardware stamp.",
        "photo 6: Close-up of the strap attachments and both sides of any removable strap hardware.",
        "Seller-stated material is not provided; leather versus synthetic composition should be confirmed.",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light not shown",
        "exterior back, bottom \/ corners, and side views not shown",
        "hardware close-ups with brand stamps (zipper pull, clips) not shown",
        "hangtag both faces if present not shown"
    ],
    "authenticity_concerns": [
        "No visible Coach identifier supports a generic lookalike or unbranded bag rather than Coach manufacture.",
        "photo 3: Fabric-lined interior and generic construction provide no support for a vintage Coach attribution."
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because the bag has no visible Coach identifier and its generic floral strap, fabric lining, and plain zip-top silhouette do not closely establish a catalog Coach style.",
        "Condition: Good to Very Good based on visible creasing and surface wear on the body; interior appears intact, but bottom, strap wear, odor, and hidden defects are not shown.",
        "No Coach identifier visible in any photo: no creed, no wordmark, no hangtag, no solid-brass turnlock",
        "Construction points away from Coach: fully polyester-lined zip-top with glossy coated body and fabric guitar strap is modern fast-fashion construction, not 1970s-1990s unlined glove-tanned with solid brass",
        "Silhouette is generic modern crossbody \/ hobo, does not match a catalog Coach style; no style number to decode",
        "Condition: Good to Very Good as shown; surface looks clean with light creasing (photo 2), interior looks clean (photo 3), but bottom\/corners and strap fold not shown so grade capped"
    ],
    "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: Small metal strap clips and rings are visible; no Coach engraving is legible. photo 3: Zipper hardware is visible but unbranded.",
        "leather_description": "photo 1 and photo 2: Smooth glossy brown material with visible creasing; whether genuine leather or synthetic cannot be established from the photos.",
        "lining_description": "photo 3: Light gray patterned fabric lining with interior slip and zippered pockets is visible.",
        "strap_construction": "photo 1 and photo 2: Adjustable\/removable-looking textile strap with a purple floral pattern and metal clip attachments.",
        "stitching_description": "photo 1 and photo 2: Top-edge stitching appears generally even; detailed stress-point stitching is not fully visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0025,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Adjustable textile floral strap, generic metal clip, and smooth glossy brown body do not match the typical construction cues of a vintage Coach classic.",
                    "photo 2: Exterior has a plain rectangular crossbody silhouette with no visible Coach wordmark, carriage, hangtag, creed, or other brand identifier.",
                    "photo 3: Interior appears to use patterned synthetic fabric lining with multiple pockets, a construction style inconsistent with many classic unlined glove-tanned Coach bags.",
                    "photo 1: Strap and bag hardware appear generic and no Coach engraving is visible.",
                    "Listing text identifies the item as no brand; this is weak context only and is consistent with the absence of Coach identifiers."
                ],
                "missing_information": [
                    "photo 4: Full back and bottom views, including all corners and base construction.",
                    "photo 5: Close-up of every interior label, seam tag, zipper pull, and hardware stamp.",
                    "photo 6: Close-up of the strap attachments and both sides of any removable strap hardware.",
                    "Seller-stated material is not provided; leather versus synthetic composition should be confirmed."
                ],
                "authenticity_concerns": [
                    "No visible Coach identifier supports a generic lookalike or unbranded bag rather than Coach manufacture.",
                    "photo 3: Fabric-lined interior and generic construction provide no support for a vintage 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: Small metal strap clips and rings are visible; no Coach engraving is legible. photo 3: Zipper hardware is visible but unbranded.",
                    "leather_description": "photo 1 and photo 2: Smooth glossy brown material with visible creasing; whether genuine leather or synthetic cannot be established from the photos.",
                    "lining_description": "photo 3: Light gray patterned fabric lining with interior slip and zippered pockets is visible.",
                    "strap_construction": "photo 1 and photo 2: Adjustable\/removable-looking textile strap with a purple floral pattern and metal clip attachments.",
                    "stitching_description": "photo 1 and photo 2: Top-edge stitching appears generally even; detailed stress-point stitching is not fully visible."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because the bag has no visible Coach identifier and its generic floral strap, fabric lining, and plain zip-top silhouette do not closely establish a catalog Coach style.",
                    "Condition: Good to Very Good based on visible creasing and surface wear on the body; interior appears intact, but bottom, strap wear, odor, and hidden defects are not shown."
                ],
                "confidence": 0.83,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 8,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light not shown",
                    "exterior back, bottom \/ corners, and side views not shown",
                    "hardware close-ups with brand stamps (zipper pull, clips) not shown",
                    "hangtag both faces if present not shown"
                ],
                "negative_evidence": [
                    "photo 3: fully lined interior in shiny taupe polyester herringbone fabric, not unlined suede-back glove-tanned leather",
                    "photo 2: smooth high-gloss brown material with coated \/ faux-leather look and painted top edge, not matte glove-tanned cowhide",
                    "photo 1, photo 2: wide woven fabric guitar strap with purple floral jacquard, not Coach leather strap with brass slides or dogleash clips",
                    "photo 1, photo 2, photo 3: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag, no turnlock visible",
                    "photo 2: zip-top closure with thin brass-tone lobster-claw strap clips; vintage Coach classics use turnlock flap and solid brass hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone lobster-claw clips and zipper teeth visible; no turnlock; no engraved COACH visible; hardware tone bright plated look",
                    "leather_description": "smooth medium-brown material with high gloss \/ coated look consistent with faux \/ split leather, not matte full-grain glove-tanned cowhide",
                    "lining_description": "light taupe shiny polyester lining with herringbone pattern and interior zip and slip pockets visible in photo 3",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight top-edge stitching in matched brown thread visible in photo 1 and photo 2; no irregularity visible at this resolution",
                    "strap_construction": "wide adjustable removable woven fabric shoulder strap with floral pattern and metal clips, not leather Coach strap",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any photo: no creed, no wordmark, no hangtag, no solid-brass turnlock",
                    "Construction points away from Coach: fully polyester-lined zip-top with glossy coated body and fabric guitar strap is modern fast-fashion construction, not 1970s-1990s unlined glove-tanned with solid brass",
                    "Silhouette is generic modern crossbody \/ hobo, does not match a catalog Coach style; no style number to decode",
                    "Condition: Good to Very Good as shown; surface looks clean with light creasing (photo 2), interior looks clean (photo 3), but bottom\/corners and strap fold not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 784,
            "total_tokens": 17205,
            "estimated_cost_usd": 0.00845
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 16731,
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}