How GradingMetric Works
From photo to strategy in three simple steps
Take clear photos of the front and back of your trading card and upload them to GradingMetric.
Take clear, well-lit photos of both the front and back of your trading card. Our AI works best with high-resolution images that show the full card including edges. You can use your phone camera or a scanner.
- Use a flat, dark background with even lighting and no glare
- Supported formats: JPEG, PNG, WebP (minimum 800x600 pixels recommended)
- Phone cameras work great. Hold steady and fill the frame with the card
GPT-4O vision examines centering, corners, edges, surface quality, and print defects in seconds.
Once uploaded, our AI powered by GPT-4O vision technology performs a comprehensive analysis of your card in seconds. The model has been calibrated on over 24,000 professionally graded cards to ensure accurate predictions.
- Centering - measures front and back alignment
- Corners - detects wear, dings, and rounding
- Edges - identifies whitening, chipping, and nicks
- Surface - spots scratches, print defects, and staining
- Print quality - checks focus, registration, and ink coverage
Receive grade predictions, Capital Score, grader fit scores, and a clear submit or hold recommendation.
Within seconds you receive a complete analysis report with everything you need to make an informed grading decision. Every result is tailored to each of the four major grading companies.
- Grade probability matrix - full distribution across PSA 1-10
- Capital Score (0-100) - your ROI recommendation at a glance
- Grader fit scores - which company suits your card best
- Defect breakdown - categorized by type and severity
- Submit or Hold recommendation - a clear, actionable verdict
What You Get
Every analysis delivers a comprehensive report
Full probability distribution for each grade from 1 through Gem Mint 10, across all four grading companies.
A single 0-100 ROI metric combining grade probability, grading fees, and market value into a clear recommendation.
See which grading company suits your specific card best, based on its unique characteristics.
AI-identified centering issues, corner wear, edge problems, surface defects, and print quality concerns.
A clear, actionable verdict on whether to submit your card for grading or hold it.
Every analysis includes predictions for PSA, BGS, CGC, and SGC so you can compare all options.
Stop Guessing. Start Knowing.
Join thousands of collectors making smarter grading decisions with AI.