Oso vs Cerbos: Which is Better in 2026?
Choosing between Oso and Cerbos comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Oso wins this matchup. Our overall Identity & Access pick is 1Password. Our free Identity & Access pick is Swiftlane. Pick Cerbos if you need a free tier to start with.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Oso
Secure and authorize AI agents and applications with fine-grained controls and audit trails.
Best for you if:
- • You want prevents sensitive data leaks and unauthorized infrastructure modifications by AI agents
- • You want accelerates development of AI applications by providing a proven authorization foundation
Cerbos
Fine-grained, contextual, and continuous authorization for enterprise software and AI systems.
Best for you if:
- • You want significantly accelerates time to market for new roles and permissions
- • You want reduces AI security risks by preventing over-permissioning and shadow access
| At a Glance | Oso | Cerbos |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Security | Security |
Rating | - | 4.9/5 |
Free plan | Yes | Yes |
Choose Oso or Cerbos?
Choose Oso if
Secure and authorize AI agents and applications with fine-grained controls and audit trails.
- You want prevents sensitive data leaks and unauthorized infrastructure modifications by AI agents
- You want accelerates development of AI applications by providing a proven authorization foundation
Choose Cerbos if
Fine-grained, contextual, and continuous authorization for enterprise software and AI systems.
- You want significantly accelerates time to market for new roles and permissions
- You want reduces AI security risks by preventing over-permissioning and shadow access
| Feature | Oso | Cerbos |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | No ratings yet | ★4.9/5 6 reviews |
| Categories | SecurityIdentity & Access | SecurityDeveloper Tools |
In-Depth Analysis
Oso
Secure and authorize AI agents and applications with fine-grained controls and audit trails.
Oso's pricing is fair, offering a generous free Developer tier for basic usage.
Watch out
Overage fees likely for exceeding event limits
Strengths
- +Prevents sensitive data leaks and unauthorized infrastructure modifications by AI agents.
- +Accelerates development of AI applications by providing a proven authorization foundation.
- +Offers comprehensive auditing and logging for compliance and accountability.
- +Enables proactive security with simulations and real-time anomalous behavior detection.
- +Supports various authorization models (RBAC, ReBAC, ABAC) for flexible policy management.
Weaknesses
- -Requires integration into existing applications and agent workflows.
- -Pricing for higher tiers can be a significant investment for larger organizations.
Key features
Cerbos
Fine-grained, contextual, and continuous authorization for enterprise software and AI systems.
Cerbos offers a generous free tier and a Proof of Concept plan, making it highly accessible for evaluation and small-scale use.
Watch out
Overage fees for monthly active principals
Strengths
- +Significantly accelerates time to market for new roles and permissions.
- +Reduces AI security risks by preventing over-permissioning and shadow access.
- +Offers substantial cost reduction by eliminating custom authorization infrastructure.
- +Provides comprehensive audit logs for compliance and visibility into security posture.
- +Supports a wide range of programming languages and deployment environments.
Weaknesses
- -Pricing for higher tiers can be significant for large enterprises.
- -Requires integration into existing applications and infrastructure, which may involve initial setup effort.
Key features
Pricing: Oso vs Cerbos
| Plan | Oso | Cerbos |
|---|---|---|
| Tier 1 | $0/mo Developer | Free forever Open source |
| Tier 2 | $500/mo Startup | $0/month Proof of Concept |
| Tier 3 | Custom Enterprise | From $25/month Development |
| Tier 4 | N/A | From $933/month Production |
| Tier 5 | N/A | Contact us Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Oso pricing and Cerbos pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Oso
Want the highest-rated option?
Cerbos is rated 4.9/5. Oso has no ratings yet.
Go with: Cerbos
Value user reviews?
Oso: no ratings yet. Cerbos: 6 reviews (4.9/5).
Go with: Cerbos
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are security tools. Compare their specific features to decide.
How important are ratings?
Cerbos is rated 4.9/5; Oso has no ratings yet.
Key Takeaways
Oso
- Free tier available
- Our pick for this comparison
Cerbos
- Choose if you want fine-grained, contextual, and continuous authorization for enterprise software and AI systems
The Bottom Line
Oso wins this matchup. Our overall Identity & Access pick is 1Password. Our free Identity & Access pick is Swiftlane.
Frequently Asked Questions
Is Oso or Cerbos better?
Oso is rated in our evaluation. Both are freemium.
What are Oso and Cerbos used for?
Oso: Secure and authorize AI agents and applications with fine-grained controls and audit trails.. Cerbos: Fine-grained, contextual, and continuous authorization for enterprise software and AI systems..
What does Oso cost vs Cerbos?
Oso is freemium (free tier + paid plans). Cerbos is freemium (free tier + paid plans). Visit their websites for detailed pricing.