Employees move from Claude to in-house tools: Meta and Microsoft cut usage

According to [RS Web Solutions on Oct 6](https://www.rswebsols.com/news/meta-and-microsoft-take-steps-to-reduce-employee-usage-of-claude-ai/), the number of Claude Code users at Meta halved from 60,000 to 30,000. Microsoft is asking employees to use Claude less and switch to its own coding tools.