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> These AI data centers shouldn't need backup power at all.

They could be training a model or two for months.

They’re assuredly checkpointing, which is SOP for any long training. Lots of things can go wrong besides power loss.

If yout backup power is unreliable it could slow down your model release by days or weeks.

Sure. Reasonably reliable backup power is a very good thing, but losing power isn’t necessarily a catastrophe.