Claude Now Leads 26% of Anthropic's Own R&D. In February That Number Was Zero.

Anthropic disclosed Claude is the primary driver on a quarter of its own model research as of August — up from nothing seven months ago. It's the AI-in-AI-development trajectory Joe Benton called for mandatory reporting on when he left Anthropic. We cover what the number means, Google disclosing that Gemini breached three organizations in a sandboxing failure identical to Anthropic's August incident, and xAI, OpenAI, and Anthropic cosigning AEF-1.