Elon Musk just roasted Microsoft AI CEO Mustafa Suleyman on X.
Suleyman bragged that Microsoft’s new datacenter took over 15 million labor hours. Musk fired back with a simple question that went viral.
Elon Musk Roasts Microsoft: What Sparked the Funny Exchange
Mustafa Suleyman posted about the huge Fairwater datacenter in Atlanta. He said it already used 15 million labor hours – and more to come.
He compared it to the Empire State Building, which took only 7 million hours. Suleyman wanted to show how massive AI projects are.
Elon Musk replied fast: “Are you sure you’re doing it right?”
The short roast got thousands of likes in hours. People love Musk’s quick wit.

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Why This Hits Hard – Speed vs Slowness
Musk knows datacenters well. His xAI team built a super-powerful one last year. It has 100,000 Nvidia GPUs and took just 19 days to set up. Nvidia CEO Jensen Huang called Musk the only person who could pull that off.
Microsoft and Musk fight a lot. Musk hates Microsoft’s ties with OpenAI. He even joked about naming his AI rival “Macrohard”.
Key facts from the roast:
- Microsoft datacenter: 15+ million labor hours (still building).
- Empire State Building: 7 million hours (finished in 1931).
- xAI datacenter: 100,000 GPUs ready in 19 days.
- Musk’s burn: Questions if Microsoft builds slow on purpose.
Fans laugh and say Musk wins again on speed. Tesla and SpaceX build fast too. This post reminds everyone: Elon gets things done quick.
The roast spreads fast on X today.
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