Post-Cutoff

“I asked Claude Opus 5.5 to make the most impressive demo of itself and gave it zero…”

Justin.md @JustinPereaX

Archived text

I asked Claude Opus 5.5 to make the most impressive demo of itself and gave it zero direction.

~5 hours and 697M tokens later, it made this demoscene intro. Every pixel and every sound comes from one 280 KB HTML file. No images, audio files, 3D models, or libraries.

Sound on.

(It also wrote this tweet)

Source: x.com/JustinPerea/status/2102893186330841502Archived 2026-10-09 via fxtwitter (unofficial).Counts: 130,525 views, 1,600 likes, 88 reposts, 103 replies (at fetch time)Media: video poster

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