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Cloud · head to head

Koyeb vs Kustomize

Koyeb logo

Koyeb

Cloud

High-performance serverless infrastructure for APIs, inference, and databases

From
$29/month
Rated
-
Full reviewWebsite
Kustomize logo

Kustomize

Cloud

Template-free customisation of Kubernetes YAML

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Kustomize has a free tier, so it costs nothing to try first.
  • Each has a real cost: Koyeb pricing starts at $29/month with additional compute costs; Kustomize no packaging or distribution story, which is exactly what Helm charts provide
  • They diverge on capability: Koyeb covers Serverless containers, Kustomize covers Overlay patching.

Where they differ

Only the attributes on which Koyeb and Kustomize actually diverge.

Attributes where Koyeb and Kustomize differ
AttributeKoyebKustomize
Starting price$29/monthFree
Pricing modelUnknownOpen source, no licence fee
Free tierNoYes
PlatformsWeb, CLI, APIKubernetes, Linux, macOS, Windows

Identical on both: user rating (Not yet rated), category (Cloud).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Koyeb

  • Serverless containers
  • GPU support
  • Global distribution
  • Multi-protocol support
  • Serverless Postgres
  • Zero-downtime deployments

Only in Kustomize

  • Overlay patching
  • No templating language
  • Built into kubectl
  • Generators

What people use each for

The jobs each tool is most often brought in to do.

Koyeb

  • Deploying AI inference models globally with GPU accelerationnot Kustomize
  • Building SaaS platforms with automatic scalingnot Kustomize
  • Running distributed AI agents and background workersnot Kustomize

Kustomize

  • Managing dev, staging and production variants of the same manifestsnot Koyeb
  • Keeping manifests readable and directly applyable rather than templatednot Koyeb
  • Patching third-party manifests without forking themnot Koyeb

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Koyeb

  • Pricing starts at $29/month with additional compute costs
  • GPU compute is expensive at $0.75-$2.50 per hour
  • Limited customization for infrastructure configuration

Kustomize

  • No packaging or distribution story, which is exactly what Helm charts provide
  • Deeply nested overlays become hard to follow, and reasoning about the final output requires building it
  • No release lifecycle: nothing tracks what is installed or supports rollback the way Helm does
  • Patch syntax is fiddly for anything beyond simple field replacement

Pricing, plan by plan

Koyeb

$29/month
  • Pro$29/month
    • $10 included compute
    • 10 users
    • 100 services
  • Scale$299/month
    • $100 included compute
    • 50 users
    • 1,000 services
  • Enterprise$1000/month
    • Unlimited users
    • Custom resources
    • SSO/RBAC

Kustomize

Free
  • KustomizeFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Koyeb if

  • You need serverless containers.
  • You work on Web, CLI, API.
  • You also want gpu support.
Koyeb review

Choose Kustomize if

  • You need overlay patching.
  • You want to start without paying.
  • You work on Kubernetes, Linux, macOS, Windows.
  • You also want no templating language.
Kustomize review

Questions people ask

Is Koyeb or Kustomize better?
Neither clearly leads. Koyeb starts at $29/month and Kustomize at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Koyeb or Kustomize?
Kustomize has a free tier; the other does not. Paid plans start at $29/month for Koyeb and Free for Kustomize.
Does Koyeb or Kustomize run on more platforms?
Koyeb runs on Web, CLI, API. Kustomize runs on Kubernetes, Linux, macOS, Windows.
Can I use Kustomize for free?
Yes. Kustomize has a free tier, so you can try it without paying. Koyeb starts at $29/month.
What is Koyeb best used for?
Koyeb is most often used for deploying ai inference models globally with gpu acceleration, building saas platforms with automatic scaling, running distributed ai agents and background workers. Of those, deploying ai inference models globally with gpu acceleration and building saas platforms with automatic scaling are not what Kustomize is typically brought in for.
What can Koyeb do that Kustomize cannot?
Koyeb covers Serverless containers, GPU support, Global distribution, Multi-protocol support. Kustomize covers Overlay patching, No templating language, Built into kubectl, Generators.

Answered from the vendors’ own pages

Koyeb: What are Koyeb's subscription plans?

Pro plan is $29/month with $10 included compute, Scale plan is $299/month with $100 included compute and 99.9% SLA, and Enterprise starts at $1,000/month with unlimited users and 99.99% SLA.

Source
Kustomize: Is Kustomize free?

Yes, open source and part of the Kubernetes project.

Koyeb: How much does GPU compute cost?

GPU pricing is per-second: RTX-A6000 costs $0.75/hour, A100 costs $1.60/hour, H100 costs $2.50/hour, and 8x H100 costs $20.00/hour.

Source
Kustomize: Kustomize or Helm?

Kustomize patches plain YAML and keeps bases readable; Helm templates and packages applications with a release lifecycle. Many teams use both — Helm to install third-party charts, Kustomize to patch them.

Koyeb: What database options are available?

Koyeb offers serverless Postgres starting at free (0.25 vCPU, 1GB RAM) up to 3XL at $1.28/hour with 8 vCPU and 32GB RAM. Storage costs $0.50/month per GB.

Source
Kustomize: Do I need to install Kustomize?

No. It is built into kubectl, available through kubectl apply -k.

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