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Cloud · head to head

Cilium vs Vultr

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Rated
-
Full reviewWebsite
Vultr logo

Vultr

Cloud

High performance cloud compute

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cilium requires a recent Linux kernel, which rules out older distributions and some managed environments; Vultr vultr Cloud Compute pricing as captured 31 December 2022 started at $5/month (1 vCPU, 1GB RAM, 25GB storage, 1TB transfer), scaling to $10/month and $20/month with more vCPU/RAM/storage; bandwidth overage billed at $0.01 to $0.05 per GB depending on plan
  • They diverge on capability: Cilium covers eBPF datapath, Vultr covers Cloud servers.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cilium and Vultr actually diverge.

Attributes where Cilium and Vultr differ
AttributeCiliumVultr
Pricing modelOpen source, no licence feeusage-based
PlatformsKubernetes, LinuxWeb, Api, Cli
FoundedUnknown2014

Identical on both: starting price (Free), free tier (Yes), 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 Cilium

  • eBPF datapath
  • Identity-based policy
  • Hubble observability
  • Sidecar-free mesh

Only in Vultr

  • Cloud servers
  • Bare metal servers
  • Block storage
  • Object storage
  • Load balancers
  • Kubernetes
  • Firewalls
  • Private networks

What people use each for

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

Cilium

  • Kubernetes networking at a scale where iptables-based CNI performance degradesnot Vultr
  • Network policy expressed on workload identity rather than fragile IP rulesnot Vultr
  • Seeing which services actually talk to each other, and what policy is droppingnot Vultr

Vultr

  • High performance computingnot Cilium
  • Game serversnot Cilium
  • Streamingnot Cilium
  • Database hostingnot Cilium
  • Application serversnot Cilium

Where each one falls short

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

Cilium

  • Requires a recent Linux kernel, which rules out older distributions and some managed environments
  • eBPF is genuinely hard to debug when it misbehaves, and the skill is rare on most teams
  • Broad scope — CNI, policy, mesh, observability — means the learning curve covers several domains at once

Vultr

  • Vultr Cloud Compute pricing as captured 31 December 2022 started at $5/month (1 vCPU, 1GB RAM, 25GB storage, 1TB transfer), scaling to $10/month and $20/month with more vCPU/RAM/storage; bandwidth overage billed at $0.01 to $0.05 per GB depending on plan

Pricing, plan by plan

Cilium

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

Vultr

Free
  • Cloud Compute$2.5/month
    • 512MB RAM
    • 10GB SSD
    • 500GB bandwidth
  • Bare Metal$32/month
    • Dedicated hardware
    • High performance
    • Full root access

Which should you pick?

Choose Cilium if

  • You need ebpf datapath.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want identity-based policy.
Cilium review

Choose Vultr if

  • You need cloud servers.
  • You want to start without paying.
  • You work on Web, Api, Cli.
  • You also want bare metal servers.
Vultr review

Questions people ask

Is Cilium or Vultr better?
Neither clearly leads. Cilium starts at Free and Vultr at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or Vultr?
Cilium starts at Free and Vultr at Free.
Does Cilium or Vultr run on more platforms?
Cilium runs on Kubernetes, Linux. Vultr runs on Web, Api, Cli.
Can I use Cilium for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cilium best used for?
Cilium is most often used for kubernetes networking at a scale where iptables-based cni performance degrades, network policy expressed on workload identity rather than fragile ip rules, seeing which services actually talk to each other, and what policy is dropping. Of those, kubernetes networking at a scale where iptables-based cni performance degrades and network policy expressed on workload identity rather than fragile ip rules are not what Vultr is typically brought in for.
What can Cilium do that Vultr cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. Vultr covers Cloud servers, Bare metal servers, Block storage, Object storage.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

Yes, open source and CNCF-graduated. Isovalent sells an enterprise distribution and support.

Cilium: What does eBPF change?

It lets Cilium run packet-processing programs inside the kernel instead of relying on iptables rule chains, which behave poorly as the number of services grows.

Cilium: Does Cilium replace a service mesh?

It can cover much of what a mesh does without sidecars, though full mesh feature sets still favour Istio or Linkerd.

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