Andrej Karpathy Launches HackerTube Using Claude’s AI in Just One Weekend

Andrej Karpathy, co-founder of OpenAI and current researcher at Anthropic AI, developed a video platform called HackerTube over a weekend using Claude’s Opus 5.5 model. This AI filtered through 43 million comments from 20 years of Hacker News, resulting in 6,454 curated videos.

Karpathy claims that HackerTube offers a “significantly better viewing experience” than YouTube’s own recommendations, as he shared on X. The platform does not require a login, displays a single mid-video frame instead of optimized thumbnails, and retains user state locally in the browser.

Following the launch of HackerTube, Karpathy quickly created another platform named TristanTube. This site was built in just three minutes using Claude Code, featuring 47,000 videos sourced from a list of YouTube channels curated by Tristan Hume.

According to Karpathy, he relied on Claude Code for nearly all aspects of the project, including data analysis and server setup. His only manual tasks involved obtaining a Google Cloud API key, renting a server, and purchasing the domain. He noted that projects that previously took weeks to complete can now be finished in a matter of hours.

Source: The Decoder