Microsoft first started opening up access to Claude Code in December 2025, inviting thousands of its own developers to use Anthropic’s AI coding tool on a daily basis. It was part of an effort to get project managers, designers, and other employees to experiment with coding for the first time. Over the past six months, Claude Code proved immensely popular inside Microsoft—perhaps a little too popular. Now, Microsoft is preparing to walk back its Claude Code push entirely.
According to internal sources, Microsoft plans to remove most of its Claude Code licenses and direct its developers to use GitHub Copilot CLI instead. While Claude Code has been a valuable addition, it has also undermined Microsoft’s own Copilot CLI tool—a command line version of GitHub Copilot that operates outside of development apps like Visual Studio Code. The decision is driven by both strategic and financial considerations.
A Popular But Problematic Tool
Claude Code, developed by Anthropic, is an AI-powered coding assistant that runs directly in the terminal. It allows developers to generate code, debug, and perform complex tasks using natural language prompts. Microsoft’s initial trial with Claude Code aimed to explore multiple AI coding assistants and gather feedback from its engineering teams. However, Claude Code quickly became the preferred tool among Microsoft’s developers, including non-engineers like designers and project managers who used it to prototype ideas. This widespread adoption created a dilemma: while the tool boosted productivity, it also pulled usage away from Microsoft’s own GitHub Copilot products.
The Experiences + Devices team, which includes engineers responsible for major products like Windows, Microsoft 365, Outlook, Microsoft Teams, and Surface, is now winding down its usage of Claude Code by the end of June 2026. Engineers are being encouraged to start transitioning their workflows to GitHub Copilot CLI in the coming weeks. The June 30th cutoff is notably the last day of Microsoft’s current financial year, making the cancellation an effective way to cut operating expenses as the new fiscal year begins in July.
Internal Memo Confirms Shift
Rajesh Jha, executive vice president of Microsoft’s Experiences + Devices group, addressed employees in an internal memo obtained by Notepad. “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.”
The memo suggests that Microsoft values the ability to directly influence the development of Copilot CLI, something it cannot do with Anthropic’s tool. This internal alignment is crucial for integrating deeply with Microsoft’s own infrastructure, security protocols, and engineering culture.
Financial and Competitive Pressures
Beyond strategy, financial factors play a significant role. Canceling Claude Code licenses reduces operational costs at a key fiscal transition point. Moreover, Microsoft has been investing heavily in its own AI coding tools, including GitHub Copilot, which has seen widespread adoption across the industry. However, Claude Code’s superior performance in certain areas—such as handling complex multi-step tasks and providing more context-aware suggestions—has made it a tough competitor.
Microsoft’s own developers have favored Claude Code over Copilot CLI in recent months, a trend that the company hopes to reverse with improved investment in Copilot CLI. The GitHub team has already shipped significant improvements based on direct feedback from Microsoft engineers, and the company aims to make Copilot CLI the best agentic coding experience for its workforce. Jha emphasized in his memo that “this is a shared accountability across GitHub and E+D leadership: to make Copilot CLI the best agentic coding experience for Microsoft engineers.”
Anthropic Remains a Key Partner
Despite canceling Claude Code licenses, Microsoft’s relationship with Anthropic remains strong. Anthropic’s models will still be accessible through Copilot CLI, along with internal-only Microsoft models and OpenAI’s models. This ensures continuity for engineers who rely on Anthropic’s advanced language capabilities. Moreover, Microsoft’s deal with Anthropic for the Foundry platform—which provides access to Claude Opus 4.1, Claude Sonnet 4.5, and Claude Haiku 4.5—remains unaffected. Microsoft continues to view Anthropic’s models as superior for certain tasks within Microsoft 365 apps and Copilot, particularly where reasoning and nuanced understanding are required.
Earlier this year, Microsoft became one of Anthropic’s top customers, reportedly counting sales of Anthropic models toward its own Azure quotas. The company also signed a deal in November 2025 that allows Microsoft Foundry customers to use Claude models. This ongoing partnership highlights the complex dynamics between collaboration and competition in the AI industry.
Impact on Engineers and Future Outlook
The transition away from Claude Code will not be easy for many engineers. Microsoft had encouraged employees without coding experience to experiment with Claude Code, allowing them to prototype ideas quickly. Those workflows now need to be migrated to Copilot CLI, which may lack some of the intuitive features that made Claude Code popular. Microsoft is encouraging developers to file bug reports and feedback on Copilot CLI to expedite improvements.
The company is also investing heavily in closing the gap between the tools. There have been reports that Microsoft considered acquiring Cursor—a competing AI coding assistant—to bolster its capabilities, but ultimately decided against it due to potential regulatory scrutiny. Instead, Microsoft is focusing on internal development and partnerships with AI startups.
The broader context is the intense competition in the AI coding assistant market. Tools like Claude Code, GitHub Copilot, Codex, and Cursor are all vying for developer attention. Microsoft’s decision to consolidate around its own platform reflects a strategic priority to control the developer experience and reduce dependency on third-party tools. However, this may create friction with employees who have grown accustomed to Claude Code’s performance.
As Microsoft’s GitHub team works to enhance Copilot CLI, the success of this transition will be closely watched by the tech industry. If Microsoft can deliver a tool that matches or surpasses Claude Code, it will strengthen the company’s position in the AI-assisted development space. If not, the company may face internal dissatisfaction and a potential exodus of top engineering talent to competitors that offer more flexible tooling.
For now, Microsoft is betting big on its own products. The company recently reported that 91 percent of its engineering teams were using GitHub Copilot before the Claude Code trial began. With the trial ending, Microsoft aims to restore that number and demonstrate that its AI coding tools can outperform the best alternatives on the market.
The decision also reflects a broader trend among tech giants: investing heavily in internal AI tools that can be tightly integrated with existing workflows and data. As AI continues to reshape software development, the tools that developers use will increasingly become strategic assets. Microsoft’s move to prioritize Copilot CLI over Claude Code is a clear signal that the company intends to control its own AI destiny, even as it continues to partner with leading AI labs like Anthropic.
Source: The Verge News