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Posted by karpathy 10 hours ago

HackerTube: YouTube built from videos recommended by HN(karpathy.bearblog.dev)
YouTube-style UI over 6,454 videos sourced from 39,834 HN comments since 2007.

https://hackertube.org/

1002 points | 307 commentspage 9
gpugreg 10 hours ago|
How do the categories work? I'd download the video transcripts and embed the text (maybe summarized first). This way you could support custom categories via embedding similarity.
czernobog 3 hours ago||
this looks great and I love how snappy it is.. Youtube feels so slow compared to this
skyberrys 10 hours ago||
What is a 50% thumbnail?
fasterik 10 hours ago|
I'd never heard this term either, but I'm assuming it means that if the video is N frames long, it uses frame N/2 as the thumbnail.
karpathy 9 hours ago||
correct. it means the thumbnail is sourced from exactly halfway in the video, so you get a representative frame.
karpathy 9 hours ago|||
The average thumbnail on YouTube these days is some guy looking like HOLY SHIT, tearing his hair in amazement looking at something with an arrow pointing at some detail. "TOP 10 XYZ. YOU'LL NEVER BELIEVE #6". Like and subscribe. Utterly repulsive.
waschl 9 hours ago||||
You may want to have a look at DeArrow https://dearrow.ajay.app/
em-bee 9 hours ago|||
i'd prefer to see the original thumbnail though so that i can recognize the video if i have seen it on youtube already. i also expect that the kind of videos that tend to be recommended on HN are less prone to have clickbait thumbnails.
karpathy 8 hours ago||
configurable in the Settings! (see the menu on the left banner)
Coill 8 hours ago||
I like this. All the "influencers" gone.
seb1204 8 hours ago|
Is there a list of influencers and a nice way to automatically block them?
beaker52 8 hours ago||
Funny, this user made exactly this a year ago: https://news.ycombinator.com/item?id=43672050

Only 12 upvotes - I guess his name wasn’t Karpathy.

virpo 4 hours ago||
I actually love it. Thanks for finding it and sharing it here!
RetardedBastard 3 hours ago|||
Awesome. Using this instead
kogasa240p 8 hours ago||
Maybe the UI put people off? idk because this seems cool as well.
beaker52 8 hours ago||
Nah, it’s people upvoting the person rather than the product. Average human behaviour.

The product isn’t really that interesting, but it’s been built by a nerd celebrity so people gush for it and upvote it.

You see the same thing with blog posts all the time: some “celeb” posts an average, run of the mill take that plenty of people have had before them and only now it’s suddenly relevant and insightful, with people thanking their celeb for sharing some amazing basic idea that has been shared countless times before by other people.

Steve Yegge is another one I see a lot. These folks could fart and it’d reach the front of HN.

breakyerself 5 hours ago||
YouTube itself needs a competitor. There's too much ads.
mongol 7 hours ago||
It would be great if this could be keyboard navigable, using arrow keys and enter to play.
wildmXranat 6 hours ago||
Nice. This is excessively large so it probably took a while to curate. Well done
chrisczura 6 hours ago|
Hey Andrej, thanks for the effort. It's highly appreciated!

In your video regarding your own use of LLMs[1] you mention https://arena.ai/leaderboard and https://labs.scale.com/leaderboard to keep track of the status quo. That video is from February 2025 and https://artificialanalysis.ai has gained quite a lot of popularity but also earned criticism repeatedly due to updating the benchmarks right before a new model release. Would you still recommend the arena and scale leaderboards? And if you don't mind, what's your opinion wrt artificialanalysis?

[1]: https://www.youtube.com/watch?v=EWvNQjAaOHw

karpathy 3 hours ago|
No i don't recommend those anymore. Currently I recommend Epoch's ECI. AA was kind of bad but recent changes are trending a little bit better. I think benchmarks are in a really bad state right now otherwise, I basically don't trust them, good related reading https://epoch.ai/data/benchmark-reviews-documentation/includ...
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