[key points]

Key points

• •Anthropic researchers used 16 instances of the Claude Opus 4.6 AI model to build a C compiler from scratch.
• •Over two weeks, the AI agents produced a 100,000-line Rust-based compiler capable of building a bootable Linux 6.9 kernel on x86, ARM, and RISC-V architectures.
• •The resulting compiler has been released on GitHub and can compile major open-source projects, achieving a 99 percent pass rate on the GCC torture test suite and compiling and running Doom.