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Microsoft is turning to Amazon to help address capacity issues on its GitHub coding platform after a series of AI-driven outages, according to two people familiar with the plans.
GitHub, which Microsoft acquired in 2018, is a widely used platform where engineers store and manage code and collaborate on projects. While GitHub previously operated mostly its own data centers, Microsoft had planned to move the platform entirely to its Azure cloud service by 2027. Now, a surge in AI demand is forcing Microsoft to rely on Amazon Web Services for additional computing capacity.
AI coding tools have made it easier for developers to write more software, contributing to a sharp increase in activity on GitHub. GitHub commits—records of code changes that act as a proxy for development activity—were on pace to reach 14 billion in 2026, up from 1 billion in 2025, according to a post by GitHub Chief Operating Officer Kyle Daigle on X in April.
To handle the surge, Microsoft is adding extra computing capacity via Amazon Web Services, the people familiar said.
The move is notable because Microsoft and AWS compete for cloud market share. Providing business to an arch rival rather than meeting GitHub’s needs through Azure is likely not ideal for Microsoft. However, the people familiar said the strength of AI-driven demand is pushing other large technology companies toward similar arrangements.
A Microsoft spokesperson confirmed that GitHub is tapping multiple cloud providers but declined to comment on any Amazon involvement.
An Amazon spokesperson said the company does not comment on individual clients, adding that customers choose AWS because they need global infrastructure that performs reliably, securely, and efficiently at scale, and that AWS is committed to delivering strong performance across workloads.
While the deals may appear unusual, the central objective is to keep widely used services operating for customers regardless of which cloud providers are involved.
For Microsoft, that is likely the priority with GitHub, which has suffered dozens of major outages in 2026. HashiCorp cofounder Mitchell Hashimoto wrote in April that GitHub was no longer a place for serious work if it blocks users out for hours per day, every day.
GitHub’s capacity challenges come as competition in AI-assisted coding intensifies. The platform previously held an early lead among engineers, but it has faced more competition from AI tools such as Cursor and Claude Code.
Microsoft projected that its capital expenditures for the 2026 calendar year will reach $190 billion, largely to expand data center capacity. However, many data center projects are delayed, while Microsoft also has other major AI projects and businesses that require compute capacity.
According to audio reviewed by Business Insider, a Microsoft executive discussed the need to overhaul GitHub in an internal meeting late last year to compete with Cursor and Claude Code.

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