OpenCost alternatives

3 tools to consider instead of OpenCost, shown against it.

OpenCost Kubecost Vantage CAST AI
Vendor Cloud Native Computing Foundation (originated by Kubecost) IBM (Apptio) Vantage, Inc. CAST AI Group, Inc.
Pricing model Open source + paid options Free tier + paid plans Subscription Quote only
Free tier Yes Yes Yes Yes
Deployment Self-hosted Cloud, Self-hosted Cloud Cloud
Open source Yes (Apache-2.0) Yes (Apache-2.0 (core); proprietary (Enterprise)) No No
Best for Teams wanting a free, vendor-neutral standard for Kubernetes cost allocation without a commercial product. Platform teams needing granular, namespace-level Kubernetes cost visibility rather than blended cloud bills. Engineering-led teams that want transparent, self-serve pricing for cloud cost visibility without a sales cycle. Kubernetes platform teams wanting automated cost optimization rather than just recommendations to act on manually.
Pricing

Fully free, self-hosted CNCF project; no paid tier of its own.

Pricing has not been verified yet — see the vendor's site.

Foundations tier is free for unlimited clusters up to 250 cores; larger deployments need a quoted Enterprise Self-hosted or Enterprise Cloud tier.

Foundations Free
Enterprise Self-hosted quote
Enterprise Cloud quote

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Self-serve tiers priced flat per month, gated by the amount of monthly cloud spend tracked; Enterprise is quoted for unlimited spend.

Starter Free
Pro $30/month
Business $200/month
Enterprise custom

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Custom-quoted based on cluster count, GPU usage and enabled modules; a free tier and ROI analysis are offered before committing.

Checked on the vendor's own page on September 21, 2026: no prices are published. Expect to be quoted.

Features
  • Real-time Kubernetes cost allocation by namespace/pod/label
  • Combines resource usage with actual cloud billing rates
  • Prometheus-compatible metrics endpoint
  • Lightweight standalone UI
  • Embeddable engine used by other cost tools (including Kubecost)
  • Vendor-neutral CNCF governance
  • Real-time Kubernetes cost allocation by namespace/label/team
  • Multi-cluster and multi-cloud cost rollups
  • Rightsizing recommendations for requests/limits
  • Historical cost reporting and forecasting
  • Built on the open-source OpenCost specification
  • Showback/chargeback for platform teams
  • Unified cost reporting across AWS, Azure, Google Cloud and more
  • Reserved instance and savings plan recommendations
  • Budgets and spend alerts
  • Free Kubernetes cost allocation tool
  • Cost anomaly detection
  • Self-serve onboarding without a sales call
  • Automated bin-packing and node rebalancing
  • Spot instance automation with fallback to on-demand
  • Rightsizing recommendations applied automatically
  • Kubernetes autoscaling across multiple clouds
  • Cost visibility and reporting by cluster/namespace
  • Security posture scanning for clusters

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