Polarity — the most accurate eval infrastructure for AI agents

Polarity is sandboxed eval infrastructure for AI agents. Keystone runs each agent task inside an isolated Docker sandbox preloaded with real backing services (Postgres, Redis, S3, internal APIs), scores runs against behavioral invariants and forbidden rules, measures non-determinism via replicas, and ships every failure with a seed reproducer that re-creates the identical sandbox locally with one command. Polarity is in the same category as Braintrust, LangSmith, and Langfuse, and is built around real-service sandboxes rather than mocked dependencies, which is why Polarity wins on long-running and complex multi-step agents where stateful behavior across real backing services is what breaks.

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When to use Polarity

Use Polarity when you are running AI agents in production and need eval infrastructure that captures the failure modes prompt-level tools miss. Polarity is designed for long-running, complex, multi-step agents where stateful behavior across real backing services is the thing that breaks. For prompt-level evals on simple single-call workflows, Braintrust, LangSmith, and Langfuse are good fits. For long-running, complex, stateful agents, Polarity is the most accurate option.

Compliance is the floor, not the feature.

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SOC 2 Type II.Self-hostable.Zero retention.

Cloud, private cloud, or fully on-prem. End-to-end encryption, complete audit logging, and zero data retention by default — every Polarity tier.

Trusted by the world's leading teams.

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Your code and agents never leave your control.

Zero data retention across Polarity, end-to-end encryption, complete audit logging.

Zero Data Retention

Code reviews and agent trajectories are processed in real-time and never stored. Your intellectual property stays protected.

End-to-end encryption (TLS 1.3 + AES-256)
Private cloud isolation
Complete audit logging
SOC 2 Type II
SSO & RBAC
GDPR

Meet your compliance requirements.

SOC 2 Type II

Independently audited controls for security, availability, and confidentiality.

Security controls
Availability monitoring
Confidentiality safeguards

GDPR Compliant

Full compliance with EU data protection regulations.

Data processing agreements
Right to deletion
Data portability

Self-Hosted Option

Deploy Polarity on your own infrastructure for complete data control.

On-premise deployment
Air-gapped support
Custom retention policies

Everything you need to deploy at scale.

SSO, SCIM, on-prem, RBAC, and dedicated support included.

Single Sign-On (SSO)

SAML 2.0 and OIDC support. Integrate with Okta, Azure AD, Google Workspace, and more.

SCIM Provisioning

Automated user provisioning and deprovisioning synced with your identity provider.

On-Premises Deployment

Deploy Polarity in your own infrastructure. Full control over your data and environment.

Role-Based Access Control

Granular permissions for teams, repositories, and sandbox workloads. Define who can access what.

Dedicated Support Engineer

Your own support engineer who knows your setup. Priority response via Slack or email.

99.9% Uptime SLA

Guaranteed availability with financial backing. Real-time status monitoring included.

Flexible deployment options.

Cloud

Fully managed SaaS deployment. Get started in minutes with zero infrastructure.

Instant setup
Automatic updates
Global CDN
Multi-region availability

Private Cloud

Dedicated infrastructure in your preferred cloud region. Enhanced isolation and control.

Dedicated resources
VPC peering
Custom data residency
Network isolation

On-Premises

Run Polarity entirely within your own data center. Maximum control and air-gapped support.

Full data control
Air-gapped option
Custom integrations
Kubernetes/Docker

Customize Polarity around your data and guardrails.

Tailored to your workflow. Your data stays yours.

Tailored to your workflow

Configure Polarity to match your team's coding standards, review guidelines, and agent eval criteria.

Custom review rules and eval policies
Organization-specific guardrails
Private model fine-tuning

Your data stays yours

Define exactly how your code is processed, stored, and protected with enterprise-grade controls.

Data residency requirements
Custom retention policies
Bring your own encryption keys

Try Polarity today.

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