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Cloud · head to head

Cilium vs Warp

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Free plan
Yes
Full reviewWebsite
Warp logo

Warp

Developer Tools

The terminal reimagined with AI and modern features

From
Free
Free plan
Yes
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; Warp limited cloud agents access on free tier
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Cilium and Warp actually diverge.

Attributes where Cilium and Warp differ
AttributeCiliumWarp
Pricing modelOpen source, no licence feeUnknown
PlatformsKubernetes, LinuxmacOS, Windows, Linux
CategoryCloudDeveloper Tools
FoundedUnknown2020

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Warp

Nothing recorded that Cilium does not also cover.

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 Warp
  • Network policy expressed on workload identity rather than fragile IP rulesnot Warp
  • Seeing which services actually talk to each other, and what policy is droppingnot Warp

Warp

  • Modern terminal environment for developersnot Cilium
  • AI-assisted command execution with multiple LLM providersnot Cilium
  • Multi-agent orchestration and codebase indexingnot Cilium
  • Agentic development workflowsnot 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

Warp

  • Limited cloud agents access on free tier
  • Limited collaboration features on free tier
  • Limited cloud conversation storage on free tier
  • IME input not properly handled on macOS (discarded during command or Agent output)
  • Terminal zoom functionality does not properly resize grid in TUI applications, causing misaligned rendering
  • Multi-language (i18n) support missing as of documentation
  • Requires macOS 10.14 or later (excludes older Mac hardware)
  • Requires Windows 10 build 1903 or later (excludes pre-build 1903 systems)
  • Linux requires glibc 2.31 or higher and GPU support (OpenGL ES 3.0+ or Vulkan) for rendering

Pricing, plan by plan

Cilium

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

Warp

Free

No published plan breakdown. See the Warp review.

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 Warp if

  • You want to start without paying.
  • You work on macOS, Windows, Linux.
Warp review

Questions people ask

Is Cilium or Warp better?
Neither clearly leads. Cilium starts at Free and Warp at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or Warp?
Cilium starts at Free and Warp at Free.
Does Cilium or Warp run on more platforms?
Cilium runs on Kubernetes, Linux. Warp runs on macOS, Windows, Linux.
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 Warp is typically brought in for.
What can Cilium do that Warp cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

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

Warp: What is the pricing model?

Usage-based, priced per agent run. Qualifying orgs get $10k of factory usage during closed early access.

Source
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.

Warp: Where does our data live?

Data lives wherever you choose - Warp's cloud, or fully self-hosted inside your own VPC, under your existing retention and compliance rules.

Source
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.

Warp: What is included in the free trial?

Get up to $10,000 in free factory usage during early access.

Source
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