Microsoft, after investing $13B in OpenAI, saw its engineers run up Claude Code costs

投了OpenAI 130亿的微软，被自家工程师用Claude Code烧爆了账本

Microsoft plans to end Claude Code subscriptions by the end of June for its Experiences and Devices teams and move nearly 100,000 engineers to GitHub Copilot CLI, with the article attributing the change to external token-based billing costs.

Why it matters: HKR-H/K/R all pass: the OpenAI-Claude contrast hooks, the story gives end-June migration, nearly 100k engineers and token-billing, and it hits enterprise coding-agent cost control. Not a model release or official major launch, so 78–84 fits.