The Cast AI blog
Guides, tutorials, and tips on Kubernetes automation, from cost optimization to cloud security and everything in between.
Karpenter Spot Instances: Cut Cost Without Interruptions
Karpenter can provision Spot Instances by setting the capacity type in a NodePool, which cuts…
How to Migrate from Cluster Autoscaler to Karpenter
Migrating from Cluster Autoscaler to Karpenter means replacing managed node groups with Karpenter NodePools that…
Karpenter Consolidation and Bin-Packing: How to Cut Node Waste Safely
Karpenter consolidation continuously repacks running workloads onto fewer, cheaper nodes and removes nodes that are…
Karpenter NodePools and NodeClasses: A Practical Configuration Guide
A Karpenter NodePool defines the constraints Karpenter uses to launch nodes (instance types, capacity type,…
What Is Karpenter? How Just-in-Time Node Provisioning Cuts Kubernetes Cost
Karpenter is an open-source Kubernetes node autoscaler, originally from AWS and now a CNCF project,…
GPU Cloud Pricing in 2026: What AI Compute Really Costs
GPU cloud pricing varies widely by provider, region, and instance type, and it moves with…
GPU Cost Monitoring: Track Utilization and Attribute AI Spend
GPU cost monitoring tracks how much of each expensive GPU is actually used and attributes…
Multi-Cloud and Cross-Region GPU Capacity for Kubernetes AI
Multi-cloud GPU capacity lets a single Kubernetes cluster source scarce GPUs, TPUs, and CPU from…
Kubernetes Node NotReady: Why Nodes Go NotReady and How to Fix It
A Kubernetes node in NotReady state has stopped reporting healthy to the control plane, so…
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