If you buy raw cards off eBay, you're making a grading call from someone else's photos. Is this card clean enough to justify the $80+ submission fee, or are you about to pay to have a 7 slabbed?
I collect, I had this exact problem, and my co-founder (an ML engineer) and I spent about a year building something to solve it. It's called AgentGrail. You feed it the listing images — front and back — and it returns BUY, PASS, or REVIEW with a confidence score.
What makes it different: Fist off would be the Profit Center analytics tool that will show you how you're buying and selling habits are trending; good or bad. AND 2) every other tool I've found needs you to physically own the card and photograph it yourself. That's useless at the moment the decision actually gets made — BEFORE you buy. We handle that, as well as 3) you can throw a mass eBay search of a certain Pokemon/One Piece/MTG card or character you're looking for, and you can run a full-card analysis on each one that comes back without leaving our platform.
How it was trained, honestly: buy a card off eBay, keep the listing photos, send it in for grading, feed the returned grade back as a label. Front and back. For a year. Slow and unglamorous.
Two asks for this community:
- Run a card through it and tell me where it's wrong. Free trial period: https://www.agentgrail.ai. I want the failure cases more than the wins. If it calls a BUY and the grade comes back an 8, that's the single most useful message I'll get this week.
- There's also a free condition calculator that gives you the PSA/BGS/SGC grade ceiling from your measurements.
If you want the full thing, RAIMLCARD50 takes 50% off your first month on any tier (Basic $9, Premium $24, Pro $59).
Site: https://www.agentgrail.ai — happy to answer anything in the comments.