How Flipsy AI Grades Cards
No mystery. No algorithm hiding behind a paywall. This is exactly what our AI measures, how it measures it, and why it matters to your wallet.
The Four Pillars
Every FLIPSY Score is built from these four independently measured dimensions.
Centering
Measured as a left-right and top-bottom ratio. PSA/BGS require at least 55/45 for a 10. Flipsy AI measures to a 0.01mm tolerance — not eyeballed.
Corners
Sub-pixel corner fraying detection. The naked eye misses early-stage softening; our model catches it using edge-density mapping.
Edges
Chip frequency and depth analysis. A single nick on the edge can drop a PSA grade by two full points. We quantify every chip before listing.
Surface
Surface topography scanning detects scratches, print lines, and foil anomalies. Invisible in most photos. Fully visible to Flipsy AI.
The Process, Step by Step
From upload to listing — here's what happens inside the engine.
Image Ingested
Card image is received and preprocessed at 4× zoom with noise reduction.
Corner Analysis
4 corners individually scored using edge-density + pixel gradient models.
Centering Calculation
Border widths measured and expressed as L/R and T/B ratios.
Surface Scan
Defect heatmap generated. Scratch density and foil anomalies flagged.
FLIPSY Score Generated
Weighted composite of 4 pillars, calibrated to 10,000+ PSA outcomes.
Listing Published
Score, confidence level, and forensic breakdown attached to the listing permanently.
What the Score Means
Gem Mint Candidate
Statistically PSA 10 territory. Rare. Worth submitting.
Strong PSA 9 Likely
Excellent condition. Minor variance may prevent PSA 10.
PSA 8 / NM Territory
Solid raw card. Consider condition in pricing.
EX / PSA 7 Range
Visible wear. Price accordingly. Honest listing.
Played / Raw Value
Significant wear. Priced for collectors not investors.
Ready to Buy with Confidence?
Every listing on Flipsy comes with this exact analysis attached.
Browse AI-Graded Cards