Smart and Versatile Zesty Alternative – CAST AI
Optimize your Kubernetes deployment for top performance at the best price within minutes. No long-term commitment or upfront costs.
CAST AI vs. Zesty at a glance
Automated Kubernetes cost management, monitoring, and container security for the three major clouds.
- The platform delivers average savings of 63% thanks to multiple automated optimization features like spot instance automation, resource rightsizing, and autoscaling.
- It requires little configuration effort to bring long-lasting results for your infrastructure – and cut your bills for good.
Limited cloud cost optimization features for teams using Amazon EC2 Reserved Instances.
- Zesty’s automated prediction and management of EC2 commitments promise to reduce costs by up to 60% without human intervention.
- However, it doesn’t solve the root cause of waste – so unoptimized infrastructure will still haunt you.
CAST AI vs. Zesty: quick feature comparison
Use the comparison table below to discover what makes CAST AI different.
Feature | CAST AI | Zesty |
---|---|---|
Vendor support | ||
AWS | ||
Google Cloud Platform | ||
Microsoft Azure | ||
Cost allocation and visibility | ||
Detailed cost allocation | ||
Automated cost forecasting | ||
Cost reporting | ||
Cost view across multi-cloud | ||
Cost optimization and automation | ||
Automated rightsizing | ||
Node autoscaling | ||
Reserved Instances | ||
AI-driven instance selection | ||
Automated pod scaling parameters | ||
Automatic bin packing | ||
Cluster scheduling | ||
Spot Instance automation |
Cloud Cost Transparency, Control, and Saving $3M on Amazon EKS: How Iterable Does It
“When you start talking about those numbers, leadership cares, finance cares, they start building it into their cost projections and estimates. Even 1 or 3% of a massive AWS bill is significant. So when you say numbers like 20% people are losing their minds. And our total possible savings take that 20% closer to 60 or 70%, which translates to $3-4 million per year.”

Jason Sanghi
Staff Software Engineer
Complete your PoC in days, not months
Proving something works should not take months. CAST AI starts saving the moment you onboard. Complete your Proof of Concept in 5 days and get an ROI report to prove results.



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CAST AI manages your cloud resources automatically. No upfront payments or manual tracking and fiddling.
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Features your K8s cluster will love
Free features
No credit card required. Unlimited clusters.
Cloud cost monitoring
View your cloud costs in one place, monitor them in real time, and understand where exactly they come from.
Container security
Get all the key cloud security insights in one place, prioritize configuration issues and vulnerabilities, and share your findings easily.
Premium Kubernetes automation
Advanced autoscaling
Depending on your workload’s needs, CAST AI adds and removes resources necessary to ensure top performance at the best price.
Instant rebalancing
Analyze and optimize your cluster automatically to enjoy improved performance at a far lower cost.
Spot instance automation
Save even 90% with spot instance automation – and have your workloads moved automatically upon their termination.
Automatic rightsizing
CAST AI automatically selects the resources your workload needs, eliminating the risk of under and overprovisioning.
Pricing and results that will delight your cluster
Analyze your cluster for free to discover how much you can save within minutes. Implement the changes automatically with one of our premium plans.
Pay for what you use, not what you save
CAST AI charges you for the CPUs you use, not the percent of savings it helps you get. There are also no charges for the chosen optimization method.
Optimal solutions, no long-term commitments
CAST AI always selects the most cost-efficient solution without forcing you into any specific approach and long-term commitments like Reserved Instances.
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Optimize your cluster for free
Try powerful Kubernetes automation features combined with full cost visibility via cluster-specific savings reports and cost monitoring.
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Unlimited clusters
Instant savings insights