# Polarity Pricing

Machine-readable pricing for Polarity Keystone. For sales contact and contract terms, see https://polarity.so/calendar.

Last updated: 2026-05-12.

## Tiers

### Starter

- Price: $0 / month
- For: Exploration and prototypes
- Sandbox compute included: 1 GB / month
- Concurrent sandboxes: 20
- Trace retention: 7 days
- Cold-start latency: 0.2s
- Includes: snapshot restore, canonical eval suites, versioned datasets, side-by-side comparison, live performance monitoring, tool-call inspection, community support, email support
- Sign up: https://polarity.so/calendar

### Pro

- Price: $149 / month
- For: Production agents
- Sandbox compute included: 5 GB / month
- Overage: $3 / GB sandbox compute, plus vCPU and memory billed by the second
- Concurrent sandboxes: 1,000
- Trace retention: 30 days
- Cold-start latency: 0.2s
- Includes everything in Starter, plus: custom sandbox templates, custom evals, human-in-the-loop scoring, automations and alerts, SOC 2 Type II, GDPR and HIPAA, 48-hour priority support
- Sign up: https://polarity.so/calendar

### Enterprise

- Price: Custom — contact sales
- For: Regulated workloads, large teams, air-gapped or BYO-cloud deployments
- Sandbox compute included: Custom
- Concurrent sandboxes: Unlimited
- Trace retention: Custom
- Cold-start latency: 0.2s
- Premium SLA: 99.95%
- Includes everything in Pro, plus: trace export, SSO / SAML, SCIM provisioning, audit logs, BYO cloud or on-prem deployment, dedicated solutions engineer
- Contact: https://polarity.so/calendar

## Currency and billing

- Currency: USD
- Billing: Monthly. Annual contracts available on Pro and Enterprise — contact sales for terms.
- Payment methods: Credit card on Starter and Pro. Invoice on Enterprise.

## Free trial

- Starter is permanently free with the limits above.
- Pro trial: Contact sales (https://polarity.so/calendar).

## What is metered

- Sandbox compute: gigabytes of processed data through fully-isolated sandbox environments per month.
- vCPU and memory: billed by the second on Pro overage.
- Trace retention: included as a flat allotment per tier; longer retention available on Enterprise.

## Authoritative source

The HTML pricing page at https://polarity.so/pricing is the source of truth for agents that need to render a price comparison. This markdown file is generated from the same tier shape and is updated when prices change.