Opus 5.5 Builds Working Computer from 277,000 Logic Gates on a Single Prompt

AI entrepreneur Matt Shumer demonstrated that Opus 5.5, guided by a single prompt in ultracode mode, autonomously spent about 30 hours building a working computer in JavaScript from 277,000 logic gates, complete with CPU, memory, assembler and a mini OS, and even ran a playable game on it.

2026-09-28 ~ 2026-09-28 · 4 related posts

• Matt Shumer: Opus 5.5 built a working computer in JS — 277k logic gates, an OS, and games — mattshumer_ · 2026-09-28
• One prompt, 30 hours: Opus 5.5 builds a working computer from 277k logic gates, OS and games included — mattshumer_ · 2026-09-28
• One prompt, 30 hours autonomous: AI builds a working computer from logic gates — mattshumer_ · 2026-09-28
• One prompt gets AI to build a working CPU, assembler, OS and game from logic gates — mattshumer_ · 2026-09-28