Tool comparison
nines vs Pyrra — SLO generator comparison
Pyrra is a Kubernetes operator and CLI that converts SLO definitions into PrometheusRules CRDs and provides a live burn-rate tracking UI inside your cluster. nines takes the opposite approach: a browser wizard that generates a self-contained ZIP — recording rules, alerts, dashboard, and runbook — deployable to any Prometheus stack, Kubernetes or not.
| Feature | nines | Pyrra | Notes |
|---|---|---|---|
| Web wizard | ✓ | — | nines is fully browser-based; Pyrra uses YAML CRDs or a CLI. |
| Kubernetes required | — | ✓ | Pyrra runs as a Kubernetes operator; nines works with bare-metal Prometheus. |
| Prometheus recording rules | ✓ | ✓ | Both generate recording rules; Pyrra emits PrometheusRules CRDs. |
| Multi-burn-rate alerts | ✓ | ✓ | Both implement multi-window burn-rate alerting. |
| Live SLO tracking UI | — | ✓ | Pyrra has a built-in UI showing current burn rate and error budget. |
| Grafana dashboard | ✓ | — | nines generates a Grafana JSON dashboard; Pyrra does not. |
| Runbook generation | ✓ | — | nines generates a per-SLO Markdown runbook. |
| Business-hours SLI | ✓ | — | nines supports restricting availability measurement to business hours. |
| Alertmanager route config | ✓ | — | nines emits a ready-to-use Alertmanager routing block. |
| Open source | — | ✓ | Pyrra is Apache 2.0; nines is a hosted service. |
| Setup complexity | Low | High | Pyrra requires a running Kubernetes cluster with PrometheusOperator. |
Use nines when…
- ✓ Teams running Prometheus outside Kubernetes (bare-metal, VMs, Docker).
- ✓ Quick SLO bootstrap where you need a complete artifact bundle immediately.
- ✓ Services that need business-hours availability filtering.
Use Pyrra when…
- → Kubernetes-native teams already running PrometheusOperator.
- → Teams who want live, in-cluster burn-rate visibility rather than a static dashboard.
- → Organizations managing many SLOs as Kubernetes custom resources.
Other comparisons
Try nines for free
Generate your first SLO bundle in under 3 minutes — no account required for the wizard.