Show HN: Jev Cards, Can you beat a vision model at a picture quiz?
I built a quiz game around TypeSafe's new Jev model, which has vision capabilities. Jev looks at a picture and a question and picks an answer (or taps a place) in about a quarter of a second. I've always loved quiz games and thought this would be a fun way to see what it can do and how fast it is. I made the cards from scratch, and Jev gets exactly the picture you see. More cards will come over time. Play against Jev on your own (there's a leaderboard for each mode), or start a live match and challenge your friends, with Jev as one more player. The code is open source, so feel free to build your own game or make more cards that I can publish. Play: https://jevcards.com Code: https://github.com/Jose-Sabater/jevcards (the newest cards stay private for a while) Disclaimer: I ran Jev through both TypeSafe and Opper, and made the cards through Opper's vision models and Claude Code. I work at Opper, but jevcards is open source and free to play.
Discussion Highlights (20 comments)
inerte
I got a lot of answers wrong (half of them maybe?), and the ones I got it right Jev was still faster.
edaemon
Interesting. Jev is certainly faster but it was wrong quite a bit more than I was.
nextaccountic
Could you add an option to remove musical theory questions? I mean, I know Jev can ace those as well, but I can only click at random, that's unfun
arjie
Would prefer if the audio button was at the top right of the page etc.
jrflo
Very cool demo! Although I feel that incorrect answers should be penalized more. For instance- I got 100% in about 45 seconds on the sprint. Then, I clicked through as fast as I can (only limited by finding the right targets) and got a score of 42s, technically better than my first score but I only got 20% right.
casey2
I thought I did terrible 5, but jev got 0 in a row. then the slopcoded app says "Jev has won 2,613 of 3,300 games, this one included." Though if you need very quick answers obviously humans can't compete. Actually on further thought after getting 15, if you've seen the exact problem before you can answer quickly, so the usefulness is diminished to problems that don't need to be 100% correct, need to be solved very quickly (even routing might not need to be this quick), problem form often changes, but is still general knowledge, and very low marginal benifet for 99% correctness over 50%
logicallee
This was very fun! I enjoyed playing it. Thanks for sharing.
coolThingsFirst
Wait a minute Orca is a Dolphin? Damn.
geooff_
I "Lost" to Jev while getting 10/10 questions and it got 8/10. Interesting scoring?
semiquaver
The first one I opened only gave me a single option to press and when I pressed it the app told me I was wrong and that Jev had pressed the correct button (which was invisible to me I guess?) I saw several other questions where I pressed the right answer and the app scored me as wrong. Broken slop.
darepublic
Nice site. I assume vibecoded but it was tasteful and performant on mobile. Thanks for open sourcing it
joshstrange
I beat Jev and only failed on the dart board, I have zero idea how to read a dart board.
podnami
This was pure fun for 62s until I found out how lousy I am
TZubiri
Couple of bugs: 1- I got 7/10, jev got 6/10, and it says Jev won, presumably because I took 100 seconds, but Jev took 60? Funny what that reveals about author and AI-optimism in general 2- The chess board challenge isn't clear on how it should take the answer, I tried dragging a piece but that didn't work, then I tried touching the piece I wanted to move, but it marked the answer wrong, I apparently had to touch the square I needed to move the piece to.
AuthAuth
I went in thinking I was going to cook Jev and then I get asked things like "pick the ginko leaf". Good site
ajjenkins
This is fun, and a good demonstration of Jev’s capabilities. It’s obviously much faster than a human, but it’s interesting that it only got 7/10 right on both rounds (same as me). I’m wondering what Jev could be trusted to do reliably given these results. I guess it wasn’t optimized for these types of trivia questions. Or maybe the image capabilities are too new and need refinement.
darepublic
Tbf jev should also be required to use vision on the UI to decide where to click to proceed with the quiz
nickabe
You might want to adjust the scoring. A simple system would be something like: - accuracy is most important - if tied on accuracy (ie both got 8/10) then tie break is done on speed In general, across a lot of games - winning is a big determinant in who comes back. Right now it might be very difficult to beat JEV with the way your scoring is setup. For my game in particular it's like a 47% chance that a winning player returns versus just 10% for non-winners.
felix089
I beat Jev, but jeez the leaderboard is pretty competitive...
sara_kumodeck
Having the model as just one more players in a live match with friends is a fun way to show off tis speed