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GitHub Overwhelmed by AI: Microsoft Forced to Use AWS Capacity
Claude Code is reportedly responsible for nearly 4% of all public commits on GitHub, or more than 135,000 commits per day. A true flood of AI-generated code that is even straining the platform’s infrastructure. So much so that Microsoft, GitHub’s owner, is reportedly forced to rent computing power… from its biggest rival: Amazon Web Services (AWS). Here’s what we know.
Claude Code, the tool that changed everything
Today, I came across a Business Insider article stating that Microsoft has to rent servers from AWS to run GitHub. Why? That’s the question worth asking.
My research led me to a dated report published on February 5, 2026 by the analysis firm SemiAnalysis, titled "Claude Code is the Inflection Point". Its conclusion is as follows: Anthropic’s tool alone would account for around 4% of public commits pushed to GitHub, with a peak measured at 134,646 commits in a single day (data as of February 2, 2026).
More importantly, the growth rate is astonishing. According to SemiAnalysis, Claude Code would have grown 42,896x in thirteen months, since its launch in research preview in early 2025. Two surges stand out on the chart:
- A first spike in October 2025, described as viral growth,
- A second peak in January 2026, attributed to a viral post by Boris Cherny, the tool’s creator.
These are February 2026 figures, and we can assume the number is even higher today, but I don’t have a current figure to share. SemiAnalysis goes further and projects that at this pace, the tool could represent more than 20% of daily commits by the end of 2026. Take that with a grain of salt: this is a projection, not a measurement. It would not be surprising: with Claude Code, anyone can step into a developer’s shoes. I’m using a shortcut here, but there is some truth to it.
This 4% threshold would also be the bare minimum rather than a ceiling: many developers disable the Co-authored-by: Claude mention, and private repositories are not counted. AI overall — including competitors such as OpenAI’s Codex or Cursor, recently acquired by SpaceX — would therefore weigh far more heavily. Even though a recent change to Claude Code pricing may have slowed things down for some users.
Lack of transparency from some developers, or fear of being judged? The question is worth asking. Especially since, when commits are co-written with AI, sparks sometimes fly. Remember the outburst around Rsync and the use of Claude AI on GitHub.
GitHub under pressure: Microsoft forced to turn to AWS
That is where SemiAnalysis’ curve meets Microsoft’s current reality. According to Business Insider, the company would be adding computing capacity provided by Amazon Web Services (AWS) to absorb the load created by AI-generated code on GitHub.
If Microsoft has come to this, it is because it does not have much choice: AWS is Microsoft’s main rival in the cloud market. Resorting to renting capacity from a competitor says a lot about the pressure on Microsoft’s infrastructure, which was also expected to move all of GitHub to Azure by 2027.
Want another number? Here is an impressive one. GitHub COO Kyle Daigle said in April on X that the volume of commits was on track to reach 14 billion in 2026, compared with 1 billion across all of 2025.
When asked by Business Insider, a Microsoft spokesperson did not comment on the deal with Amazon, but acknowledged that the situation was strained. "The dramatic rise in agentic development that began in late 2025 pushed our infrastructure to its limits," said the Microsoft spokesperson.
GitHub is overheating: the adoption of AI agents and AI is moving faster than the infrastructure meant to support them.
