Stripe Deploys Claude Code to 1,370 Engineers: 10,000-Line Scala-to-Java Migration in 4 Days

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At Code with Claude, Anthropic showcased Stripe's deployment of Claude Code across 1,370 engineers, with one team completing a 10,000-line Scala-to-Java migration in four days — compared to an estimated ten engineer-weeks manually. This was part of a broader enterprise adoption showcase: Wiz migrated a 50,000-line Python library to Go in roughly 20 hours, Ramp cut incident investigation time by 80%, and Rakuten reduced average feature delivery from 24 working days to 5.