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Microsoft
Julia Liuson, president of the Developer Division, wrote in a June 2025 memo that 'using AI is no longer optional'. The memo covers her division and is not a company-wide policy.[1]
Tools
Metrics tracked
- Satya Nadella said in April 2025 that 20% to 30% of the code in some Microsoft repos and projects is written by software (AI).[2]
- The Verge noted Microsoft said in 2025 that 91% of its engineering teams used GitHub Copilot. No updated 2026 share-of-code figure was found.[3]
Guardrails
- Business Insider reported that some teams may use external AI tools if those tools meet security requirements.[1]
- After opening Claude Code to thousands of developers in December 2025, the Experiences + Devices group is winding it down by June 30, 2026 and standardizing on GitHub Copilot CLI. Claude models stay available through Copilot CLI.[3]
Hiring, reviews & process changes
- Managers were told AI use should factor into holistic performance reflections. Business Insider reported that some teams were considering a more formal usage metric.[1]
Reported results
Nothing verified from a public source yet. Know a source?
Metric tags: % code AI-generated, Adoption rate
Editor's note: The mandate is scoped to the Developer Division as reported. The 2026 Claude Code wind-down is a tool-standardization move, not a new usage mandate.
Sources
- Business Insider: Microsoft internal memo says using AI is no longer optional · 2025-06-27 · press source
- CNBC: Satya Nadella says as much as 30% of Microsoft code is written by AI · 2025-04-29 · press source
- The Verge: Microsoft starts canceling Claude Code licenses · 2026-05-14 · press source
Last verified 2026-10-25. Industry and size are editorial bands; see methodology. Spot an error? Submit a correction.