New Fable 5.2 AI built a complete operating system in 8 days

Anthropic's Fable 5.2 AI model, launched alongside Mythos 5.2, built a working operating system prototype from an empty folder in eight days by coordinating more than 1,000 agents, according to a Geeky Gadgets report by Julian Horsey. The prototype includes drivers and file storage, demonstrating multi-agent orchestration at a scale rarely documented in public tests.

Julian Horsey writes at Geeky Gadgets about Fable 5.2, an AI model from Anthropic launched alongside Mythos 5.2, and a test where it built an operating system from scratch. Starting from an empty folder, the model coordinated more than 1,000 agents running for eight days. The result was a working prototype with drivers, file storage …