AuthZed (SpiceDB) vs Oso
Side-by-side comparison of identity tools. Sponsored placement is disclosed where applicable.
Quick answer
AuthZed (SpiceDB) vs Oso: which should you choose?
Short answer
AuthZed (SpiceDB) vs Oso have overlapping use cases in identity and access management. The right pick depends on your company size, deployment model, integrations, and pricing tolerance — compare those attributes side-by-side below.
- Best for
- AuthZed (SpiceDB): Product engineering teams building fine-grained, relationship-based permissions (sharing, hierarchies, multi-tenant B2B) at scale who want Zanzibar semantics without building them. · Oso: Product engineering teams at SaaS companies that need fine-grained, multi-model (RBAC/ReBAC/ABAC) authorization across services without building and operating their own policy engine.
- When to choose
- Pick the option whose company-size fit, deployment model, and integrations most closely match your stack.
- When not to choose
- Skip a head-to-head if you haven't shortlisted a category yet — start with the IAM Stack Finder instead.
- Related tools & categories
- AuthZed (SpiceDB)OsoIAM Stack FinderBuyer resources
| Attribute | ||
|---|---|---|
| Best for | Product engineering teams building fine-grained, relationship-based permissions (sharing, hierarchies, multi-tenant B2B) at scale who want Zanzibar semantics without building them. | Product engineering teams at SaaS companies that need fine-grained, multi-model (RBAC/ReBAC/ABAC) authorization across services without building and operating their own policy engine. |
| Short description | Maker of SpiceDB, the Apache-2.0 "open source permissions database" inspired by Google Zanzibar, offered self-hosted, as usage-priced AuthZed Cloud, as Dedicated cloud, or as a licensed self-hosted enterprise build. | Oso Cloud is a managed authorization service where teams model RBAC, ReBAC and ABAC in the Polar language and query it from Node.js, Python, Go, Java, Ruby or .NET SDKs. In 2026 Oso added Oso for Agents, a control product for AI coding agents. |
| Company size | startup, smb, mid_market, enterprise | startup, mid_market, enterprise |
| Deployment | saas, self_hosted | saas, hybrid, self_hosted |
| Source | open core | commercial |
| Pricing model | usage-based / enterprise | free tier + usage-based; enterprise quote |
| Integrations | PostgreSQL, CockroachDB, Google Cloud Spanner, MySQL, Kubernetes, gRPC, Go, Node.js | Node.js, JavaScript, Python, Go, Java, Ruby, .NET, REST |
| Categories | Authorization | Authorization, AI Agent Identity |
| Claimed profile |
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