projected this month if unattended
Spend by team
Budget forecast
The short answer
CAST AI is a Kubernetes automation platform that takes write access to your cluster and changes it for you, rightsizing pods, bin-packing nodes, and moving workloads to Spot to cut compute cost. It is Kubernetes-only and prices as a share of the savings. Costanalyst is the read-only counterpart: it connects your AWS, GCP, and Azure billing and your SaaS subscriptions, shows exactly what to cut in dollars, and never changes a resource or moves a cent. The choice is how much control you want to hand over.
| Dimension | Costanalyst | CAST AI |
|---|---|---|
| Read-only, changes nothing in your infra | Yes | No |
| Automated in-cluster rightsizing and Spot | Recommends | Yes |
| Whole cloud bill across AWS, GCP, Azure | Yes | Kubernetes |
| SaaS spend in the same view | Yes | No |
| Works without Kubernetes | Yes | No |
| Transparent self-serve pricing | Yes | Savings share |
| Never moves money | Yes | Yes |
Verdict
The bottom line
Pick CAST AI if you want a system to actively run and rightsize your Kubernetes cluster and you are comfortable granting write access. Pick Costanalyst if you want the savings named in dollars across cloud and SaaS, read-only, with nothing to hand over. Some teams pair them: CAST AI acts in the cluster, Costanalyst sees the whole bill.
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