Anthropic revealed that its AI system, Claude, writes about 90% of the company’s code. Krishna Rao, Anthropic’s CFO, said, "90 plus percent of our code is actually written by Claude Code" [1, 2].
This automation has changed how white-collar work is done at Anthropic. Rao explained that roles have moved away from manual execution toward supervising and overseeing AI systems. The finance team leverages Claude to prepare financial statements, with 90 to 95% of monthly review reports generated by AI before human review [1, 2].
Tasks that once took hours to complete now only require about 30 minutes. Rao said, "What used to take hours to produce, now comes down to 30 minutes" [2]. This productivity gain has enabled Anthropic to hire more staff while focusing on higher talent density, emphasizing quality over quantity. Rao noted, "I think of it as, you know, accentuating and accelerating the talent that we already have" [2].
The company’s workflow transformation was discussed in a podcast with Rao on May 20, 2026, highlighting the practical impacts of AI integration on daily operations [2].
