Microsoft tells engineers to stop using Anthropic’s Claude, as canceling Claude Code licenses becomes an easy way to…

Microsoft tells engineers to stop using Anthropic’s Claude, as canceling Claude Code licenses becomes an easy way to…

By TOI Tech Desk
Publication Date: 2026-06-02 06:19:00

Microsoft is canceling most internal Claude Code licenses by June 30, pushing engineers to its own GitHub Copilot CLI. The catch? Anthropic’s tool got too popular, undercutting Microsoft’s homegrown product. The official reason is toolchain unification, but The Verge reports the fiscal-year-end timing points to cost-cutting. It fits a wider AI spending crunch hitting Uber and others. Claude models stay available through Copilot CLI, so this isn’t a full break with Anthropic.Microsoft handed thousands of its own engineers a free pass to Anthropic’s Claude Code back in December, no strings attached. It wasn’t just developers either. Project managers, designers, and other non-technical staff were nudged to try it out and prototype ideas they’d never have touched before. The tool caught on fast. Too fast, as it turns out, and now it’s being taken away.Six months later, Microsoft is pulling most of those licenses and pushing developers toward its own GitHub Copilot CLI instead, with a…