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How do you cut training cost with spot/preemptible GPUs without losing days of work to a preemption?

Spot GPUs are often 60-90% cheaper, and they vanish with two minutes' warning. The savings are only real if a preemption costs you minutes, not the run. Here is how to make that true.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Spot GPUs are often 60-90% cheaper, and they vanish with two minutes' warning. The savings are only real if a preemption costs you minutes, not the run. Here is how to make that true.

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