Anthropic AI builds bootable OS kernel from scratch in 38 minutes unassisted

An Anthropic AI model constructed a minimal but functional operating-system kernel starting from an empty folder, completing the task in approximately 38 minutes across around 200 autonomous iterations. The kernel successfully boots inside an emulator and passes its own built-in tests — work that typically demands months of effort from specialist engineers. The model operated in an agentic loop, writing code, reading compiler errors, and self-correcting until the kernel ran, with no human intervention. Notably, the session had to switch to an older model midway because the original had been export-suspended by regulators — the very capability demonstrated being a reason for its withdrawal. Experts caution that this represents a single documented success story, and questions remain about reliability, failure rates, and performance on real hardware.