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Billing

Spot instance

Quick answer

A spot instance is spare cloud capacity sold at a large discount but reclaimable by the provider at short notice.

A spot instance is spare cloud capacity sold at a large discount but reclaimable by the provider at short notice.

Why it matters

For CI they are attractive — jobs are retryable — but an interrupted job wastes everything it had done. They work best for short jobs with good caching.

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