Alphabet (NASDAQ:GOOGL | GOOGL Price Prediction) and Microsoft (NASDAQ:MSFT) both reported earnings on April 29, 2026, and the results now read very differently after this week’s news that Microsoft is replacing OpenAI and Anthropic models with its own MAI system inside Excel and Outlook. One company is defending margins. The other is compounding them.
Full Stack Google vs. a Microsoft Rebuild
Google’s Q1 FY2026 was carried by owned infrastructure. Cloud revenue jumped to $20.03 billion, up 63%, with backlog nearly doubling to over $460 billion. Gemini is now processing more than 16 billion tokens per minute via API, up 60% quarter over quarter. Sundar Pichai told investors “Our AI investments and full stack approach are lighting up every part of the business.” The proprietary TPU 8t and 8i silicon powering that stack is the reason margins held at 36.1% despite capex more than doubling.
Microsoft’s Q3 FY2026 was strong on paper. Revenue hit $82.89 billion, up 18.3%, Azure grew 40%, and the AI run rate reached $37 billion, up 123% year over year. But Satya Nadella is now paying twice: once to OpenAI, once to build MAI. The Bloomberg report says tens of thousands of weekly prompts are already routing through Microsoft’s own models to cut cost.
Where the Margin Math Actually Diverges
| Lens | Microsoft | |
| AI silicon | Owned TPUs | Third party GPUs |
| Model dependency | Gemini (in house) | Transitioning to MAI-Thinking-1 |
| Cloud growth | 63% | 40% |
| YTD stock move | +17.41% | -19.24% |
A podcast source framed it plainly: Nvidia partners command roughly 70% margins, while Google’s TPU economics run closer to 40% to 50%. That gap defines the entire competitive setup.
The Next Test Is Whether MAI Can Actually Scale
I will be watching how quickly Microsoft can move Copilot workloads onto MAI without breaking the enterprise experience. Reddit chatter is already noting Copilot functionality issues, and Polymarket traders give Microsoft only a 53% probability of outvaluing OpenAI plus Anthropic by year end. For Google, the risk is capex discipline. Q2 capex above $40 billion carries an 86% probability on Polymarket.
Why I Lean Toward Google Right Now
You are looking at two very different setups. Google is a vertically integrated cash machine trading at a mid-teens P/E, up 108.2% over a year, with owned silicon absorbing the AI compute bill. Microsoft is mid rebuild, with a securities fraud class action and 4,800 job cuts already in the headlines. On the current evidence, the compounder profile screens more favorably than the turnaround profile. If MAI-Thinking-1 proves out at scale over the next two quarters, I will reconsider. Until then, Google is winning the AI unit economics fight, and the stock chart agrees.
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