History of Spot Instances
From AWS's original auction-based market (2009-2017) to provider-managed pricing across all major clouds today. Documents how transparent bidding was replaced by opaque algorithms.
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- 2026-10-10
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Deconstructing Amazon EC2 Spot Instance Pricing dants.github.io
“Cloud providers possessing large quantities of spare capacity must either incentivize clients to purchase it or suffer losses. Amazon is the first cloud provider to address this challenge, by allowing clients to bid on spare capacity and by granting resources to bidders while…
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Present or Future: Optimal Pricing for Spot Instances web.archive.org
“Pricing policy of spot resources should be carefully designed and the impact on both present and future should be considered.”
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Dynamic Cloud Pricing for Revenue Maximization henryhxu.github.io
“Amazon's spot price is unlikely to be set according to market supply and demand. Rather, price oscillates within a very narrow band most of the time, which is more likely to be an artifact of some pricing algorithm with predetermined reserve price.”
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GCP Preemptible VMs vs AWS Spot Instances news.ycombinator.com
“Google's prices are fixed, whereas AWS uses a market model”.
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The Eternal Cost Savings Of Netflix's Internal Spot Market highscalability.com
When you're big enough that creating an internal secondary market for instances makes economic sense.
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AWS reserved instances vs saving plan web.archive.org
A feature matrix of the different scheme and their average dicounts.
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