Microsoft has begun canceling Claude Code licenses for its internal developers, moving them to GitHub Copilot CLI. The company first opened access to Anthropic's AI coding tool in December, allowing thousands of employees—including project managers and designers—to experiment with coding. However, sources report that Claude Code became too popular, undermining Microsoft's own Copilot CLI tool.

The Experiences + Devices team, responsible for Windows, Microsoft 365, Outlook, Teams, and Surface, will stop using Claude Code by the end of June. Engineers are encouraged to transition workflows to Copilot CLI in the coming weeks. Microsoft frames the decision as a convergence on a single agentic CLI tool, but sources indicate financial motives: the June 30 cutoff aligns with Microsoft's fiscal year-end, making license cancellations an easy operational expense cut.

Internal Memo and Rationale

Rajesh Jha, executive vice president of Experiences + Devices, stated in an internal memo that offering both tools allowed the company to learn and benchmark. He emphasized that Copilot CLI provides a product they can directly shape for Microsoft's repos, workflows, and security needs. While Claude Code was valuable for learning, the company now prioritizes its own tool.

The transition won't be seamless. Microsoft had encouraged non-coders to use Claude Code for prototyping, and developers had favored it over Copilot CLI. Gaps between the two products remain. Microsoft reportedly considered acquiring Cursor to close the gap but shifted to looking at other AI startups to avoid regulatory scrutiny.

Despite the license cancellations, Anthropic's models remain accessible through Copilot CLI, alongside Microsoft's internal models and OpenAI's range. Microsoft continues to use Anthropic's Claude models in Microsoft 365 apps and Copilot for tasks where they outperform OpenAI. The Foundry deal with Anthropic is unaffected.

Background and Context

Microsoft became a top Anthropic customer earlier this year and even counted selling Anthropic models toward Azure sales quotas. A November deal gave Microsoft Foundry customers access to Claude Sonnet 4.5, Opus 4.1, and Haiku 4.5. The recent cancellation of Claude Code licenses does not impact that relationship. Microsoft also integrated technology from Claude Cowork into Microsoft 365 Copilot.

Now, pressure is on GitHub to improve Copilot CLI to surpass Claude Code. Last year, 91% of Microsoft's engineering teams used GitHub Copilot, but Claude Code's popularity reduced that number. Microsoft hopes to reverse that trend and have its engineers improve its own AI tool.

Additional News from the Article

Alongside the Claude Code news, the article includes several other Microsoft updates. Windows 11 is testing a 'Low Latency Profile' to boost app launch speeds, similar to macOS and Linux. Microsoft's Israel chief is stepping down amid an investigation into work with the Israel Ministry of Defense. Discord added a free Xbox Game Pass 'starter edition' for Nitro subscribers. Forza Horizon 6 leaked and cracked a week before release. Court documents from the Musk v. Altman trial revealed Microsoft worried OpenAI would go to Amazon. Microsoft may have teased a new Xbox UI, and the company will share more about Project Helix later this year. The Xbox PC app hints at a China expansion for Game Pass, and Microsoft started layoffs at LinkedIn (5% of headcount). Microsoft used its own MDASH AI model to find 16 CVEs in Patch Tuesday. Windows Update will soon automatically roll back faulty drivers via 'Cloud-Initiated Driver Recovery'. Edge Copilot update lets AI pull information from all open tabs.

These items collectively show Microsoft's broad tech strategy, but the core story remains the cancellation of Claude Code licenses in favor of GitHub Copilot CLI. The move underscores Microsoft's commitment to its own AI ecosystem while still leveraging third-party models where beneficial.

Source: The Verge News