AWS Spot vs On-Demand: What's the Difference?
Spot instances offer deep discounts but can be reclaimed. On-Demand is reliable but expensive. Perpetual Compute gives you the best of both.
Spot Instances
Up to 90% cheaper than On-Demand. AWS can reclaim them with 2 minutes notice. Prices fluctuate by region and demand.
- ✓ Huge cost savings
- ✗ Interruptions possible
- ✗ No SLA
On-Demand
Predictable pricing, no reclaim risk. You pay full price—typically 2–10× more than Spot for the same instance.
- ✓ No interruptions
- ✗ Expensive
- ✗ No discount
Perpetual Compute
Spot prices + a small stability fee. When AWS reclaims your instance, we move your app instantly. Guaranteed 5% off On-Demand.
- ✓ Spot-level savings
- ✓ On-Demand reliability
- ✓ Guaranteed discount
Live Price Comparison
Enter your instance type and node count to see real-time Spot vs On-Demand pricing.
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