Training Data Anthropic's Boris Cherny: Coding's Printing Press Moment
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May 5, 2026 
Boris Cherny, Anthropic engineer and creator of Claude Code, talks about a world where AI handles nearly all his coding. He gets into shipping PRs from his phone, running fleets of agents in loops, and why software may become as accessible as writing. He also explores how stronger models could reshape teams, products, and startup dynamics.
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Coding Is Already Solved For Some Engineers
- Boris Cherny says coding is effectively solved for his own work because Claude now writes 100% of the TypeScript and React code he needs.
- He still limits that claim to simpler, on-distribution stacks; large codebases and odd languages lag, but he expects next models to close the gap.
Boris Runs Hundreds Of Coding Agents From His Phone
- Boris Cherny now manages coding mostly from his phone, running five to ten sessions and often a few hundred active agents at once.
- He uses repeating loops to babysit PRs, fix flaky CI, auto-rebase branches, and cluster Twitter feedback every 30 minutes.
AI Teams Will Favor Cross Functional Generalists
- Boris Cherny expects AI to push teams toward cross-disciplinary generalists rather than narrow engineering specialists.
- On Claude Code, everyone codes, including the engineering manager, product manager, designers, data scientists, finance, and user research.
