Microsoft has begun canceling Claude Code licenses for thousands of its developers, pushing them to adopt GitHub Copilot CLI as the primary agentic coding tool. The decision, which affects Microsoft’s Experiences + Devices group—responsible for Windows, Microsoft 365, Outlook, Teams, and Surface—will see Claude Code usage wound down by the end of June. Engineers are being encouraged to transition their workflows to Copilot CLI in the coming weeks.
A Popular but Costly Experiment
Microsoft first opened access to Anthropic’s Claude Code in December 2025, inviting thousands of employees—including project managers, designers, and non-coders—to experiment with the AI coding tool. Over the past six months, Claude Code proved highly popular inside Microsoft, perhaps too popular. Sources indicate that the tool’s widespread adoption began to undermine Microsoft’s own GitHub Copilot CLI, a command-line version of GitHub Copilot designed to work outside development apps like Visual Studio Code.
The shift is partly financial. The June 30 cutoff coincides with the end of Microsoft’s fiscal year, making license cancellations an easy way to cut operating expenses for the new fiscal year starting in July. Rajesh Jha, executive vice president of Microsoft’s experiences and devices group, stated in an internal memo that the decision is about converging on Copilot CLI as the main agentic command-line interface tool across the division. “When we began offering both Copilot CLI and Claude Code, our goal was to learn quickly, benchmark the tools in real engineering workflows, and understand what best supported our teams,” Jha wrote. “Claude Code was an important part of that learning… at the same time, Copilot CLI has given us something especially important: a product we can help shape directly with GitHub for Microsoft’s repos, workflows, security expectations, and engineering needs.”
Challenges in the Transition
The transition away from Claude Code won’t be easy. Microsoft had encouraged employees without coding experience to use Claude Code to prototype ideas, and developers had favored it over Copilot CLI in recent months. The gap between the two products remains, and Microsoft will need to address these gaps. The company had reportedly considered acquiring Cursor to close the GitHub Copilot gap, but has instead started looking at different AI startups to avoid regulatory scrutiny.
Jha emphasized that Microsoft is partnering closely with GitHub to improve Copilot CLI based on internal feedback. “The GitHub team has already shipped significant improvements based on Microsoft feedback, and Experiences + Devices will remain closely involved in shaping the product,” he said. Anthropic’s models will remain accessible through Copilot CLI, alongside internal Microsoft models and OpenAI’s range of models. Microsoft is also encouraging developers to file bug reports and feedback on Copilot CLI ahead of the Claude Code cutoff.
Broader Context: Microsoft and Anthropic
Microsoft quickly became one of Anthropic’s top customers earlier this year and has been counting selling Anthropic AI models toward its own Azure sales quotas. In November 2025, Microsoft signed a deal allowing Microsoft Foundry customers access to Claude Sonnet 4.5, Claude Opus 4.1, and Claude Haiku 4.5. The cancellation of Claude Code licenses will not impact this Foundry deal, and Microsoft continues to favor Anthropic’s Claude models inside Microsoft 365 apps and Copilot, where they are more capable at certain tasks than OpenAI’s counterparts. Microsoft also worked with Anthropic to bring the technology behind Claude Cowork into Microsoft 365 Copilot.
The pressure is now on GitHub to improve Copilot CLI and surpass Claude Code. Last year, Microsoft reported that 91 percent of its engineering teams were using GitHub Copilot, but Claude Code usage over the past six months has impacted that number. Microsoft now aims to turn GitHub Copilot usage around and have its own engineers improve its AI coding tool.
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Source: The Verge News