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Show HN: Jev Cards, Can you beat a vision model at a picture quiz?

40 points totisjosema 2 hours ago 15 comments

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.

inerte 1 hour ago | parent

I got a lot of answers wrong (half of them maybe?), and the ones I got it right Jev was still faster.

totisjosema 1 hour ago | parent

Play some more you will get the hang of it :) The first 200 cards I did: Jev got 160 right, at a median of 261 ms , so no need to feel bad

edaemon 1 hour ago | parent

Interesting. Jev is certainly faster but it was wrong quite a bit more than I was.

totisjosema 1 hour ago | parent

yeah the different games play to different strengths, you can play multiplayer with friends also

nextaccountic 1 hour ago | parent

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

totisjosema 1 hour ago | parent

just play again :), but will consider adding whitelist/blacklist of categories

folmar 52 minutes ago | parent

also less USification would help, it's not common knowledge how US birds or bridges or hats look like

arjie 1 hour ago | parent

Would prefer if the audio button was at the top right of the page etc.

totisjosema 1 hour ago | parent

Will take a look, should already be there during a game though

jrflo 1 hour ago | parent

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.

totisjosema 1 hour ago | parent

Thanks for the feedback! And now that you showed everyone a cheat sheet we will get many high scores, so lets increase the penalty of wrong answers and reset the leaderboard! Thanks a lot for the insights

casey2 20 minutes ago | parent

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 12 minutes ago | parent

This was very fun! I enjoyed playing it. Thanks for sharing.