G CardGradeCheck
AI pre-grading · free tools · no signup

AI Card Grader

Know before you grade. Check your card's centering, estimate its PSA grade range, and run the grading math — before you spend $20–$80 a card on fees that PSA's 14-million-card backlog just made more expensive.

Check my centering → Is my card worth grading?

Three answers, before you pay a grader

Every tool is built around the only question that matters: is this card worth the fee?

Tool 01Live · Free
MEASURE

Card Centering Tool

Upload a photo, line up the guides, and get your left/right and top/bottom ratios against PSA 10, PSA 9, and BGS 9.5 requirements. Pure geometry — the one thing that can be measured perfectly from a photo.
Tool 02Live · Free
CALCULATE

Worth-Grading Calculator

Enter raw value, PSA 10 / PSA 9 comps and your grading tier. We compute the expected value of submitting — including fees, shipping and selling costs — and tell you the break-even Gem Mint odds.
Tool 03Beta · Free
ESTIMATE

AI Pre-Check

Snap a photo and the AI identifies the card, flags anything visible that would sink the grade, eyeballs centering and gives you a grade range — never a made-up single number. Try it below: 3 free checks when you sign up.
Updated August 2026

Why pre-grade now: the fee math changed

In June 2026 PSA paused its $24.99 Value Bulk and $32.99 Value tiers, citing a backlog of roughly 14 million cards. For most collectors that leaves the $79.99 Regular tier — or a switch to CGC (bulk from about $12/card) or SGC (from about $25/card).

At $79.99 a card, submitting a borderline card is no longer a coin flip you can shrug off. A card that comes back PSA 8 instead of PSA 10 often loses money after fees. Pre-grading exists to catch those cards before the invoice does.

Rule of thumb: if your card's PSA 10 comp is under ~3× the grading fee, or your centering is worse than 60/40, run the calculator before you submit. See current fees on the 2026 grading cost table.

What AI grading can — and can't — see

We build honesty into the product, because a wrong "10" costs you real money:

  • Centering — excellent. It's a geometric measurement. A photo is all you need, and our centering tool measures it exactly.
  • Corners & edges — good. Whitening, dings and chipping are visible in sharp, well-lit photos.
  • Surface — limited. Print lines, holo scratches and dimples often only show under angled light. Professional graders tilt the card; a single photo physically can't capture everything. That's why our AI reports a range with confidence, never a guaranteed grade.
  • Authentication — no. Trimming and fakes need professional equipment. AI pre-grading never replaces PSA, BGS, CGC, SGC or TAG — it tells you which cards deserve them.

FAQ

How accurate is AI card grading?
Straight answer: nobody in this category has independently verified accuracy — every "89% accurate" style number we could trace back, including our competitors', comes from the company selling the tool. What is verifiable is that accuracy is wildly uneven across the four sub-grades. Open validation data published by a public card-grading model puts centering at roughly 98% within one grade — it is pure geometry, which is why our centering tool measures it exactly and shows you the lines. Surface is close to a coin flip at about 50%. Peer-reviewed research points the same way: the most rigorous study to date used a 1200 dpi flatbed scanner instead of a camera — specifically to kill the reflections that hide scratches — and still restricted itself to corners alone. Treat any single-number "AI grade" with suspicion: ranges are honest, points are marketing.
Is this free?
The centering tool and worth-grading calculator are free forever and run entirely in your browser — your photos never leave your device. The AI pre-check: 3 free when you sign up, then credit packs that never expire.
Can AI grading replace PSA or Beckett?
No, and anyone claiming otherwise is selling you something. The slab, the authentication and the market trust only come from professional graders. AI answers the earlier question: which cards are worth submitting. Compare graders on our best grading companies page.
What centering does a PSA 10 need?
Approximately 55/45 or better on the front (75/25 on the back). PSA 9 allows roughly 60/40. Measure yours in about 30 seconds with the centering tool.
AI pre-check3 free on signup

Get the AI pre-check

Front photo required, back optional. The AI identifies the card, flags anything visible that would sink the grade, eyeballs centering and gives you an honest range — not a made-up 8.5. Shoot square-on in good light, no sleeve or slab. ~10–25 seconds.

What you get is what's visible in your photo: identification, dealbreakers, centering impression and a grade range. Surface defects usually aren't visible in a flat phone photo, so no single-number "AI grade" here — points are marketing, ranges are honest. Never a substitute for PSA/BGS/CGC.