CAST AI vs Infracost
- ✦ Kubernetes Autoscaling
- ✦ Spot Instance Automation
- ✦ Node Right-Sizing
- ✦ Terraform cost estimation
- ✦ Pull request cost comments
- ✦ Cost diff visualization
CAST AI and Infracost are both FinOps & Cloud Cost tools. CAST AI starts at $1000/mo, Infracost at $250/mo. Compare features, pricing, and ratings below to find the best fit for your team.
When to Choose CAST AI vs Infracost
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
CAST AI's autoscaler provisions the cheapest combination of instance types that satisfies workload requirements, typically cutting cluster costs 30-50% within the first 24 hours of activation.
Automatically comment estimated monthly cost on every Terraform PR so engineers see cost impact before merging
CAST AI's multi-cloud spot automation continuously monitors spot interruption rates and migrates workloads between instance types and zones, maintaining availability while cutting compute costs by 50-70%.
CAST AI monitors pod CPU and memory usage over 7 days and applies right-sized requests and limits automatically, eliminating over-provisioned pods that waste 40-60% of cluster resources.
Block PRs that would increase monthly costs by more than $1,000 without explicit approval using Infracost Cloud policies
Run Infracost against existing Terraform state to generate a cost breakdown report of all cloud resources
Surface cost data in developer workflows to reduce average monthly cloud bill by 15-25% over 6 months
Pricing Comparison & PlansHigh· Verified Jun 2, 2026
CAST AI Plans
Free tier available
Free Plan
Free- ✓Unlimited Kubernetes monitoring
- ✓Cost reduction insights
- ✓Data Optimization
- ✓Automated Kubernetes cost optimization
- ✓Resource management
Growth Plan
$1000/mo- ✓Workload Optimization
- ✓Infrastructure Optimization
- ✓Automated instance selection
- ✓Bin packing
- ✓Reduce cloud spending
Enterprise Plan
Contact Sales- ✓Custom pricing
- ✓Personalized price quote
- ✓Tailored to specific requirements
- ✓Advanced automation features
- ✓Multi-cloud automation and optimization
Infracost Plans
Free tier available
CI/CD
FreeBest for: This free tier is ideal for individual developers or small teams to get basic cost estimates within their CI/CD pipelines
- ✓Cost estimations for Terraform, CloudFormation, and CDK
- ✓Integrates with GitHub, GitLab, Azure DevOps
- ✓Slack Community support
Starter
$250/moBest for: At $250/mo, the Starter plan provides essential cost visibility and management features for growing teams
- ✓Cost estimations for Terraform, CloudFormation, and CDK
- ✓Integrates with GitHub, GitLab, Azure DevOps
- ✓Email support
Cloud
$1000/moBest for: Priced at $1000/mo, the Cloud plan is designed for larger organizations with significant cloud infrastructure
- ✓FinOps policies and best practices
- ✓Custom price book support
- ✓Cost Guardrails
- ✓Issue Explorer
- ✓Autofix workflows
Enterprise
Contact SalesBest for: The Enterprise plan offers custom pricing and tailored solutions for very large organizations with complex needs
- ✓Support for GitHub and GitLab Enterprise
- ✓Complex security requirements
- ✓SKU-level price overrides
- ✓Reporting across business units
- ✓Custom policies
Capability Breakdown
13 differences found across 23 standardized features
- •Kubernetes Autoscaling
- •Spot Instance Automation
- •Node Right-Sizing
- •Cost Visibility
- •Workload Bin-Packing
- •Multi-Cloud Kubernetes
- •Savings Reports
- •Security Posture
- •RBAC
- •Policy Engine
- •Cluster Rebalancing
- •Reserved Instance Optimization
- •EKS/GKE/AKS/DOKS Support
- •Automated Recommendations
- •Audit Logs
- •API
- •Terraform cost estimation
- •Pull request cost comments
- •Cost diff visualization
- •AWS/Azure/GCP support
- •CI/CD integration (GitHub, GitLab, CircleCI)
- •1,000+ resource types
- •Cost policies (Cloud)
- •Budget guardrails
- •Team dashboard
- •Terragrunt support
- •Pulumi support (beta)
- •API access
- •Custom price overrides
- •Slack notifications
Strengths & Limitations
Evaluative strengths and weaknesses: not feature lists
- +Automated Kubernetes optimization: not just recommendations
- +Performance-based pricing aligns incentives
- +50-60% Kubernetes cost reduction in customer reports
- +Free visibility tier to build trust before enabling automation
- −Requires trust in automated infrastructure changes
- −Primarily Kubernetes-focused: limited for non-K8s workloads
- +Native CI/CD integration comments costs directly on pull requests
- +Supports Terraform, Terragrunt, Pulumi, and CloudFormation
- +Free, open-source CLI provides core cost estimation functionality
- +Shows cost impact of usage-based resources (e.g., Lambda, S3)
- +Defines FinOps policies as code to guardrail cloud spending
- −Cost estimates for usage-based resources can be inaccurate
- −Lacks support for non-IaC resources or manual cloud changes
- −Limited historical cost tracking and trend analysis in free tier
- −Initial setup can be complex for multi-repo, multi-account orgs
- −Does not yet support Azure Bicep or ARM templates
At a Glance
Recent Price History
CAST AI removed the "Automation" plan
Plan removed · Jun 2, 2026
CAST AI removed the "Free Visibility" plan
Plan removed · Jun 2, 2026
CAST AI added a new "Growth Plan" plan at $1000/mo
Plan added · Jun 2, 2026
CAST AI added a new "Free Plan" plan at $0/mo (Free)
Plan added · Jun 2, 2026
Infracost removed the "Infracost Cloud" plan
Plan removed · May 30, 2026
Infracost removed the "Community" plan
Plan removed · May 30, 2026
Infracost added a new "Cloud" plan at $1000/mo
Plan added · May 30, 2026
Infracost added a new "Starter" plan at $250/mo
Plan added · May 30, 2026
Infracost added a new "CI/CD" plan at $0/mo (Free)
Plan added · May 30, 2026
CAST AI added a new "Enterprise" plan
Plan added · May 21, 2026
Frequently Asked Questions
Related Comparisons
Sources & Data Trail · CAST AI
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-06-02)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified reviews · 4.6/5 · 190 reviews
- 4.Capterra·Capterra verified reviews
- 5.TrustRadius·TrustRadius verified reviews
- 6.PeerSpot·PeerSpot enterprise peer reviews
Sources & Data Trail · Infracost
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-05-30)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified reviews · 4.5/5
- 4.PeerSpot·PeerSpot enterprise peer reviews