Styra / Open Policy Agent vs Cerbos
- Authentication
- 1.5
- 1.5
- SSO & Federation
- 2.0
- 1.5
- Authorization
- 4.6
- 4.5
- Lifecycle & Provisioning
- 3.5
- 3.0
- MFA & Passwordless
- 1.0
- 1.0
- Governance & Audit
- 4.3
- 3.5
- Developer Experience
- 3.8
- 4.5
- Deployment Flexibility
- 4.7
- 4.5
- Pricing Transparency
- 3.0
- 4.0
- Support & Ecosystem
- 4.0
- 3.5
Scored 0–5 against a published rubric. Bold marks the higher score. Independent analysis, no vendor sponsorship.
The honest comparison
Styra (with Open Policy Agent) and Cerbos are both policy-as-code authorization engines, distinct from the Zanzibar-style relationship engines like OpenFGA. Open Policy Agent (OPA), with Styra as its commercial control plane, is a general-purpose policy engine using the Rego language, applied across Kubernetes admission control, infrastructure, microservices, and application authorization. Cerbos is purpose-built for application authorization, with a more approachable policy model and a stateless decision API.
When Styra / OPA wins
- You want one policy engine spanning Kubernetes, infrastructure, and application layers
- Rego's expressiveness and the CNCF-graduated OPA ecosystem matter
- You need a commercial control plane (Styra DAS) for policy management at scale
- Platform and security teams are standardizing policy-as-code broadly
When Cerbos wins
- Your need is specifically application authorization, not infra-wide policy
- A simpler, more readable policy model lowers the barrier for product teams
- Stateless, context-driven (attribute-based) decisions fit your model
- You want fast adoption without learning Rego
Pricing
OPA is open source and free; Styra DAS adds commercial management and is quote-based. Cerbos has a free open-source core with Cerbos Hub as a managed and enterprise offering.
Verdict
Choose Styra / OPA when you want a general-purpose policy engine across infrastructure and applications and value the OPA ecosystem. Choose Cerbos when application authorization is the focused need and a friendlier policy model speeds adoption. For relationship-based access instead of policy-as-code, see OpenFGA vs Cerbos and OpenFGA vs AuthZed vs Cerbos, plus the authorization guide.
Last updated 2026-06-19
Independent, community-driven analysis. No vendor sponsorship. Compiled from public research and community input and verified on a best-effort basis, so details may be incomplete or out of date. Scores are opinions, not advice. Trademarks belong to their owners; mention does not imply affiliation or endorsement. See the full disclaimer, or send corrections to [email protected].