A single engineer at Anthropic now ships 30 pull requests a day. Boris Cherny doesn’t write code by hand anymore - his agents do. Since November 2024, he hasn’t manually edited a line. Instead, he runs five concurrent AI agents through Claude Code, automating tasks once reserved for junior developers.
This isn’t prototyping. At Anthropic, pull requests per engineer have tripled. A SemiAnalysis report found Claude Code now authors 4% of all public GitHub commits - and internal data suggests it’s higher in private repos. The model doesn’t just autocomplete; it debugs memory leaks, writes bash scripts, and runs diagnostics. The software engineer, as a role, is being redefined.
Cherny calls it 'management by underfunding.' Give one person a three-person task, and they’ll automate to survive. He advises startups to stop optimizing for inference costs early. Instead, give engineers unlimited tokens. Only after automation works should they optimize - switching from Opus to Haiku, for example. Cost discipline comes downstream, not upstream.
"Coding is virtually solved for what I do. The title 'software engineer' will fade. Everyone will be a builder."
- Boris Cherny, Lenny's Podcast
That shift is already visible outside Silicon Valley. At podcasting infrastructure project Podcast Index, Dave Jones went from writing 100% of the code to just 10% in two months. He’s not celebrating. For Jones, the struggle was the signal - if building wasn’t hard, maybe it wasn’t worth doing. Adam Curry disagrees, recalling how digital production felt like a video game at first, then unlocked new creative modes.
The real divide isn’t generational - it’s mental. Junior engineers at Anthropic use Claude Code more aggressively than veterans. One debugged a memory leak faster with AI than Cherny could by hand. The old guard sees tools; the new cohort sees co-workers. That’s why Anthropic expects every function - finance, design, legal - to ship pull requests. The builder is becoming universal.
But not all AI spending delivers. According to a KPMG Pulse Survey, 76% of leaders claim AI drives value - yet only 21% of IT-led initiatives deliver ROI. The gap collapses when CEOs own the strategy. Organizations with CEO accountability are three times more likely to report meaningful returns. It’s no longer about efficiency - it’s about redesigning who does what.
"When CEOs treat AI as strategy, 57% report value. When it’s an IT project, it’s 21%."
- Nathaniel Whittemore, The AI Daily Brief
The labs know this. OpenAI built its own chip, Jalapeño, in nine months using AI to design the silicon. Broadcom confirms orders stretch to 2028. Meanwhile, Anthropic accuses Alibaba of a 29-million-query distillation attack - harvesting outputs to clone U.S. models. The AI race is no longer just technical. It’s structural, geopolitical, and organizational.




