I'm just blown away by how easy to use and powerful GPTs is. I got access 8 hours ago and I managed to crank out an app that I've always wanted to build.

I'm a huge coin-collecting nerd and a major pain point I've seen in the hobby are collectors trying to figure out the grades of their coins. Far too often coin collectors are left stumped. Knowing the grade of your coin can dictate if a coin is worth a few dollars, or a few thousand.

Coding has never been my strong suit, but in just a few hours I managed to create an app that exactly solves this problem.

I created Numi, a fine-tuned version of ChatGPT4 specifically made to provide objective grading estimates and coin identification. [Works on both mobile and desktop]

Here's a quick video demo.

You can upload up to 10 photos of a coin and the AI will run a combined analysis. You will get back some details such as:

• Short Description
• Coin Type
• Year
• Mint Mark
• Estimated Grade

What's cool is that you can continue the conversation with the AI to learn more about your coin.

• Want to know who designed the coin?
• Want to know why a certain symbol was used?
• Just follow up and ask!

Caveats

• This is an alpha build!
• I recommend you use wifi as uploading images will be faster
• OpenAI's servers are under heavy load lately, so responses may be currently slower
• The model isn't perfect, but it is quickly improving
• Any and all feedback is welcomed!

I'm just absolutely shocked at how easy it was to build this. What would have taken me weeks was done in less than a day. I made this app because I wanted to help the coin community out. I can now do this with GPTs.

The tech world is going to change fast