An Operating System From Scratch · 4 AI Versions

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Four AIs each wrote an operating system from an empty folder: boot sector, kernel, windows, keyboard and mouse drivers, a disk file system. Boot them here on an emulated PC

• Claude Fable 5.2CurrentDawn OS · password dawnTime 33m 35sAPI cost $11.57
• Claude Fable 5.1Lantern OS · password lanternTime 22m 7sAPI cost $7.80
• Claude Opus 5.5Lumen OS · password lumenTime 41m 45sAPI cost $8.16
• GPT-6 AstraLuma · password lumaTime 17m 36sAPI cost $4.23

From the videoClaude Fable 5.2 Review: It Built an OS From Scratch for $11.57