Comparison

Cilium vs Open Service Mesh

On the evidence we track, Cilium leads this comparison with a composite score of 56/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Cilium56
Open Service Mesh41
Score
vioscaleAI score
Cilium56 / 100medium · 54%
Open Service Mesh41 / 100medium · 53%
Pricing
Free tier
Cilium✓
Open Service Mesh✓
Model
Open Service Meshopen_source
Price level
Ciliumfree
Open Service Meshfree
Transparent
Cilium✓
Open Service Mesh–
Integrations
Count
Cilium3
Open Service Mesh8
Adoption
Dependent repos
Cilium103
Open Service Mesh15
Github stars
Cilium25,603
Open Service Mesh2,553
Activity
Commits last 30d
Cilium100
Open Service Mesh0
Release
Cadence days
Cilium5
Open Service Mesh12
History
Cilium20 items
Open Service Mesh20 items
License
Spdx
Open Service MeshApache-2.0
Language
Primary
CiliumGo
Open Service MeshGo
Market
Availability
Cilium–
Open Service MeshAvailable worldwide
Content
Faq
Cilium6 items
Open Service Mesh6 items

Capabilities

Feature-by-feature on the axes that matter for service mesh. “-” means undocumented, not absent.

Architecture
Data plane
CiliumSidecarless (eBPF)
Open Service MeshSidecar
Proxy
CiliumEnvoy
Open Service MeshEnvoy
Security
Automatic mutual TLS
Cilium-
Open Service Mesh✓
SPIFFE / SPIRE identity
Cilium✓
Open Service Mesh-
Traffic
Traffic splitting / canary
Cilium✓
Open Service Mesh✓
Fault injection / resilience
Cilium-
Open Service Mesh-
Scale
Multi-cluster federation
Cilium✓
Open Service Mesh-
Portability
VM support (beyond Kubernetes)
Cilium-
Open Service Mesh-
Observability
Built-in observability
Cilium✓
Open Service Mesh✓
Standards
Gateway API / GAMMA support
Cilium✓
Open Service Mesh-
Extensibility
WASM extensibility
Cilium-
Open Service Mesh-
Compliance
FIPS mode
Cilium-
Open Service Mesh✓
Ecosystem
CNCF maturity
CiliumGraduated
Open Service Mesh-
Ops
Commercial support / enterprise edition
Cilium-
Open Service Mesh-

What each one is

The product in its own terms, so the numbers below have context.

Cilium

Leader

Cilium is an open-source networking layer for Kubernetes that uses eBPF to provide container-to-container communication, load balancing, network policies, multi-cluster connectivity, and deep observability across single or multiple clusters.

Independently observed

Open Service Mesh

A cloud-native service mesh that injects Envoy proxies to manage traffic, enforce security policies, and provide observability across microservice environments on Kubernetes. It uses SMI APIs for configuration and supports automatic mutual TLS.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Cilium

Leader
Open sourceFree tier
as of verify ↗

Open Service Mesh

Open source
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Linux
Cilium✓
Open Service Mesh✗
CLI
Cilium✓
Open Service Mesh✓
Deployment
Cloud / SaaS
Cilium✓
Open Service Mesh✗
Self-hosted
Cilium✓
Open Service Mesh✓
Hybrid
Cilium✓
Open Service Mesh✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • Envoy

Cilium

Leader
3 total - 2 not shared
  • SPIRE
  • Prometheus
Independently observed

Open Service Mesh

8 total - 7 not shared
  • Linkerd
  • Istio
  • Consul
  • Kuma
  • Helm
  • SMI specification
  • external certificate management systems
Independently observed
Still deciding?

Cilium or Open Service Mesh: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.