# Cilium vs Greymatter

| Attribute | Cilium | Greymatter |
|---|---|---|
| **vioscaleAI score** | 55.8 (54% (medium)) | 52.2 (47% (low)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 103 | - |
| adoption.github_stars | 25,603 | - |
| content.faq | `[{"answer":"A cloud-native networking and security platform that uses eBPF to provide networking, observability, and security capabilities. Built for Kubernetes and cloud infrastructure with integrated observability via Hubble. It is indexed under Service Mesh.","source":"https://cilium.io","question":"What is Cilium?","confidence":0.6},{"answer":"Cilium is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://cilium.io","question":"Is Cilium free to use?","confidence":0.6},{"answer":"Cilium supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://cilium.io","question":"What platforms does Cilium support?","confidence":0.6},{"answer":"Yes. Cilium can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://cilium.io","question":"Can Cilium be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Cilium, including SPIRE, Envoy and Prometheus. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://cilium.io","question":"What does Cilium integrate with?","confidence":0.6},{"answer":"Yes. Cilium is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/cilium/cilium","question":"Is Cilium open source?","confidence":0.95}]` | `[{"answer":"A zero trust networking platform that automatically encrypts traffic between services, enforces security policies, and manages workload identity across hybrid cloud deployments without requiring code changes. It is indexed under Service Mesh.","source":"https://greymatter.io/","question":"What is Greymatter?","confidence":0.6},{"answer":"Greymatter offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://greymatter.io/","question":"Is Greymatter free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Greymatter. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://greymatter.io/","question":"What platforms does Greymatter support?","confidence":0.6},{"answer":"Yes. Greymatter can be deployed cloud / SaaS, hybrid, on-premise, air-gapped and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://greymatter.io/","question":"Can Greymatter be self-hosted?","confidence":0.6},{"answer":"We have confirmed 9 integrations for Greymatter, including Grafana, Kibana, Prometheus, Splunk, Elasticsearch, Keycloak, PingFederate and Okta, plus 1 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://greymatter.io/","question":"What does Greymatter integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Greymatter. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Greymatter not holding them. Always confirm compliance directly before you rely on it.","source":"https://greymatter.io/blog/greymatter-io-and-nist-800-207-zero-trust-compliance/","question":"What security certifications does Greymatter have?","confidence":0.7},{"answer":"Greymatter is available worldwide. Its primary market is the United States. The vendor is headquartered in the United States.","source":"https://greymatter.io/","question":"Where is Greymatter available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"air_gapped":true,"self_hosted":true}` |
| description.long | 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. | A platform that secures application and service traffic through automated encryption, granular policy enforcement, and built-in observability across hybrid clouds, Kubernetes, VMs, and edge environments. |
| features.capabilities | `{"proxy":"envoy","data_plane":"sidecarless_ebpf","multicluster":true,"cncf_maturity":"graduated","spiffe_identity":true,"traffic_splitting":true,"gateway_api_support":true,"built_in_observability":true}` | `{"fips_mode":true,"vm_support":true,"multicluster":true,"automatic_mtls":true,"traffic_splitting":true,"commercial_support":true,"built_in_observability":true}` |
| integrations.count | 3 | 5 |
| integrations.list | `[{"name":"SPIRE","native":false,"category":"identity","direction":"inbound"},{"name":"Envoy","native":false,"category":"proxy"},{"name":"Prometheus","native":false,"category":"monitoring","direction":"outbound"}]` | `[{"name":"Grafana"},{"name":"Kibana"},{"name":"Prometheus"},{"name":"Splunk"},{"name":"Elasticsearch"},{"name":"Keycloak"},{"name":"PingFederate"},{"name":"Okta"},{"name":"Auth0"}]` |
| language.primary | Go | - |
| license.spdx | Apache-2.0 | - |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"linux":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://cilium.io","retrievedAt":"2026-08-13T09:27:47.184Z"}` | `{"type":"free","freeTier":true,"sourceUrl":"https://greymatter.io/","retrievedAt":"2026-08-13T18:19:59.123Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | free |
| pricing.price_level | free | free |
| pricing.transparent | yes | no |
| release.cadence_days | 5 | - |
| release.history | `[{"url":"https://github.com/cilium/cilium/releases/tag/v1.21.0-pre.3","date":"2026-10-02T19:04:57Z","type":"prerelease","version":"v1.21.0-pre.3"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.2","date":"2026-09-16T01:53:22Z","type":"stable","version":"v1.20.2"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.8","date":"2026-09-16T01:53:16Z","type":"stable","version":"v1.19.8"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.14","date":"2026-09-16T01:53:07Z","type":"stable","version":"v1.18.14"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.21.0-pre.2","date":"2026-09-09T11:50:23Z","type":"prerelease","version":"v1.21.0-pre.2"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.1","date":"2026-08-18T10:36:16Z","type":"stable","version":"v1.20.1"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.7","date":"2026-08-18T10:35:54Z","type":"stable","version":"v1.19.7"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.13","date":"2026-08-18T10:35:40Z","type":"stable","version":"v1.18.13"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.21.0-pre.0","date":"2026-08-03T19:58:45Z","type":"prerelease","version":"v1.21.0-pre.0"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0","date":"2026-07-29T15:00:29Z","type":"stable","version":"v1.20.0"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-rc.1","date":"2026-07-21T23:28:11Z","type":"prerelease","version":"v1.20.0-rc.1"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.6","date":"2026-07-16T22:52:21Z","type":"stable","version":"v1.19.6"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.12","date":"2026-07-16T22:47:50Z","type":"stable","version":"v1.18.12"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.17.18","date":"2026-07-16T22:47:26Z","type":"stable","version":"v1.17.18"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-rc.0","date":"2026-07-14T02:52:53Z","type":"prerelease","version":"v1.20.0-rc.0"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-pre.4","date":"2026-07-03T20:50:44Z","type":"prerelease","version":"v1.20.0-pre.4"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.19.5","date":"2026-06-16T12:25:41Z","type":"stable","version":"v1.19.5"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.18.11","date":"2026-06-16T12:22:23Z","type":"stable","version":"v1.18.11"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.17.17","date":"2026-06-16T12:22:05Z","type":"stable","version":"v1.17.17"},{"url":"https://github.com/cilium/cilium/releases/tag/v1.20.0-pre.3","date":"2026-06-02T00:41:32Z","type":"prerelease","version":"v1.20.0-pre.3"}]` | - |
| reliability.status_page | - | yes |
| security.certifications | - | `[{"name":"FIPS 140-3","status":"active","auditor":"CMVP"}]` |
| security.fedramp | - | yes |
| security.gdpr | - | yes |
| security.scorecard | 5.8 | - |
| security.vulnerabilities | `{"count":39,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fcilium%2Fcilium&per_page=100","last_12m":8,"max_severity":"CRITICAL"}` | - |

## Capabilities (Service Mesh)

| Capability | Cilium | Greymatter |
|---|:--:|:--:|
| **Architecture** |  |  |
| Data plane | Sidecarless (eBPF) | - |
| Proxy | Envoy | - |
| **Security** |  |  |
| Automatic mutual TLS | - | ✓ |
| SPIFFE / SPIRE identity | ✓ | - |
| **Traffic** |  |  |
| Traffic splitting / canary | ✓ | ✓ |
| Fault injection / resilience | - | - |
| **Scale** |  |  |
| Multi-cluster federation | ✓ | ✓ |
| **Portability** |  |  |
| VM support (beyond Kubernetes) | - | ✓ |
| **Observability** |  |  |
| Built-in observability | ✓ | ✓ |
| **Standards** |  |  |
| Gateway API / GAMMA support | ✓ | - |
| **Extensibility** |  |  |
| WASM extensibility | - | - |
| **Compliance** |  |  |
| FIPS mode | - | ✓ |
| **Ecosystem** |  |  |
| CNCF maturity | Graduated | - |
| **Ops** |  |  |
| Commercial support / enterprise edition | - | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T20:59:34.615Z. "-" = undocumented, not absent.*