Claude writes 80% of Anthropic production code

Anthropic's transition to a codebase that is 80% AI-generated signals the practical arrival of recursive self-improvement, although it introduces critical risks regarding code maintenance, systemic security bugs, and AI model drift.

* Reaching an 80% milestone demonstrates that AI has evolved from an assistant into the primary author of production-grade software.

* Autonomous self-improvement cycles could yield exponential gains in AI capability, potentially outpacing human capability to monitor and review the code.

* Training future models on codebases predominantly generated by AI could lead to compounding errors and model degradation if safety and verification metrics are not strictly enforced.