Microsoft's AI Is Now Writing Microsoft's Code: The Tech Ouroboros Takes Shape

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I've been covering AI developments for years now, but sometimes a tech headline still makes me pause and consider the larger implications. This is one of those moments.

Microsoft CEO Satya Nadella recently dropped what should be an industry-shaking revelation during a casual fireside chat with Mark Zuckerberg at Meta's LlamaCon. According to Nadella, "maybe 20%, 30% of the code that is inside of our repos today and some of our projects are probably all written by software." Not engineers. Software.

Let that sink in for a second.

The tech giant that's dumped billions into AI development now has AI writing substantial chunks of its own products. It's a perfect corporate feedback loop—a technological ouroboros, if you will. Microsoft feeds the AI beast, which then helps build Microsoft products, which then presumably helps advance the AI further. And round and round we go.

Look, I'm not saying this explains all the quirks in Windows 11's interface (though that sluggish context menu does make you wonder...), but the economic implications here are staggering.

Senior engineers at Microsoft easily cost the company north of $300K annually when you factor in benefits, stock options, and other perks. If AI can handle even the routine coding tasks—the digital equivalent of paperwork—the productivity gains could fundamentally alter Microsoft's operational model.

But what fascinates me isn't just the cost savings. It's the potential for compressed innovation cycles.

Zuckerberg's response was even more ambitious (surprising absolutely no one who's followed his metaverse moonshot mentality). While he couldn't provide exact figures for Meta, he projected that "maybe half the development is going to be done by AI, as opposed to people" within the next year.

Half!

And then—in a moment that felt straight out of a sci-fi novel—he casually mentioned that Meta is building an AI model specifically designed to build future versions of their Llama AI models. This is meta-Meta indeed. AI creating better AI.

Having tracked automation trends across multiple industries, I've noticed most follow what I call an "automation inflection curve." The pattern is predictable: slow start, technical roadblocks, breakthrough moment, then sudden exponential acceleration before eventually finding a new equilibrium. With coding automation, we appear to be at that critical inflection point—moving from "AI can help with suggestions" to "AI can write substantial portions of production code."

This shift raises profound questions for tech valuations. If a substantial percentage of a tech company's core function—writing code—can be automated and accelerated, what does that mean for future margins? For innovation cycles? Companies effectively leveraging AI for coding might ship products and features at dramatically faster rates with fewer humans on payroll.

There are complications, of course (there always are).

Not all code is equal. Writing new features differs dramatically from maintaining legacy systems or debugging complex interactions. Someone still needs to direct the AI, prioritize features, and understand user needs. Plus, there's the "who watches the watchers" problem—if AI writes code, who's checking for security vulnerabilities and logical flaws?

The labor implications might be the most fascinating aspect. Will we see a barbell effect in tech employment? Growing demand for both high-level software architects (who direct AI) and specialized engineers (who handle what AI cannot), while squeezing out mid-level coding positions? Or will productivity boosts actually increase demand across all levels by enabling more ambitious software projects?

I keep returning to the competitive dynamics. If Microsoft and Meta are pushing toward 50% AI-written code, what happens to smaller companies without the same AI resources? Does this create a new form of competitive moat where the biggest tech companies can innovate faster because they control both the means of production (AI) and the production itself?

The irony is almost too perfect: tech companies building AI tools that potentially automate parts of their own workforce while creating enormous shareholder value. It's creative destruction playing out in real-time at some of the world's most valuable companies.

Are Nadella's figures exact? Who knows. These executive pronouncements have a way of being simultaneously exaggerated and understated. But the direction is unmistakable. Software is eating the world, and now AI is helping write the software.

The snake continues to consume its tail, and the cycle accelerates.

Maybe—just maybe—we'll finally get a Start Menu design that sticks around for more than one Windows version.