How GradingMetric Works
From photo to strategy in three simple steps
Snap Your Card
Take a photo of front and back. That's it.
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
AI Spots What You Miss
In seconds, AI checks centering, corners, edges, surface — catches defects invisible to the naked eye.
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
Get Your Verdict
Capital Score, grade probabilities for all 4 graders, and a clear answer: submit or hold.
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
Grade Probability Matrix
Full probability distribution for each grade from 1 through Gem Mint 10, across all four grading companies.
Capital Score
A single 0-100 ROI metric combining grade probability, grading fees, and market value into a clear recommendation.
Grader Fit Scores
See which grading company suits your specific card best, based on its unique characteristics.
Defect Detection
AI-identified centering issues, corner wear, edge problems, surface defects, and print quality concerns.
Submit/Hold Recommendation
A clear, actionable verdict on whether to submit your card for grading or hold it.
4-Company Coverage
Every analysis includes predictions for PSA, BGS, CGC, and SGC so you can compare all options.
Every Card You Submit Blind Is a Gamble
Get the real odds before you pay for grading. Two cards free, no credit card.