On a Sandy Beach: Hackertube

Mike's Notes

A great resource.

"Andrej Karpathy builds a YouTube alternative in two hours: The OpenAI co-founder (now at Anthropic) just built HackerTube, a site that surfaces videos the Hacker News community keeps recommending. It sifts through 43M comments to find 6,454 videos worth watching. Inside Claude Code, Opus 5.5 handled the pipeline and deployment, while Sonnet 5.5 did the heavy lifting of labeling comments. Karpathy only stepped in to provide an API key, server, and domain. The labeling reportedly used 504M input tokens, though most were cached." - The Code

PhoenixAI NEXT QUERY 2026

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05/11/2026

Hackertube

By: Andrej Karpathy

@karpathy: 01/11/2026

Andrej Karpathy: Andrej Karpathy is a Slovak-Canadian AI researcher, who co-founded and formerly worked at OpenAI, where he specialized in deep learning and computer vision. He also worked as the director of artificial intelligence and Autopilot Vision at Tesla, and in 2024 he founded Eureka Labs, an AI education platform.

...

Weekend hack: HackerTube. I was annoyed with YouTube's recommendations so I had Claude filter down 43M comments over 20 years of HN to 6,454 videos that keep being recommended. *Significantly* better viewing experience, ~2 hours with Opus 5.5:

hackertube.org/

Excellent recs without any logins (state is kept in local browser session)
Thumbnail is a representative frame from middle of the video instead of the super duper A/B test hyper-optimized user uploads
Underlying data from the comment analysis as one zip file, point your Claude at it and ask for your own version
HackerTube Longs ✊

A bit more on the process:

I use Claude Code (desktop app for Mac), Opus 5.5 on Medium effort as my default. I only talk to Claude and have it do everything, the only "manual work" I helped with in tandem was in the browser (reminiscent of MenuGen): 1) I had to create some kind of API key from Google Cloud UI to query YouTube for video metadata, 2) I booted up a VPS box for serving and 3) I bought the domain name. Once the box was up I gave Claude the IP and told it update, secure, harden, deploy and optimize the code, and it did the whole thing.

Many awesome projects that would have normally taken weeks/months even can now be few-shotted for breakfast. What else are we not thinking of.