LangWatch vs Opik
A side-by-side comparison of LangWatch and Opik, two Observability tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | LangWatch | Opik |
|---|---|---|
| Category | Observability | Observability |
| Pricing | FREEMIUM | FREEMIUM |
| License | Open core | Open core |
| Deployment | Hybrid | Hybrid |
| Platforms | Web, API | Web, API |
| Model support (differs) | Model-agnostic | BYO key / model |
| Vendor (differs) | LangWatch | Comet |
The honest brief
LangWatch
Bundles trace observability with Scenario agent-simulation testing, not just passive production monitoring.
- Agent simulation testing built in
- Self-hostable on your own infra
- Evals alongside tracing
- Data-residency options
- Smaller community than peers
- Younger, evolving product
- Fewer integrations than LangSmith
Opik
Fully self-hostable, pairing call tracing with built-in LLM-as-judge evals — own the stack or use Comet cloud.
- Self-host via Docker/Kubernetes
- Tracing plus evals in one tool
- Prompt management and dashboards
- Framework-agnostic integrations
- Younger than some rivals
- Hosted tier tied to Comet
- Self-host needs ops effort
- Smaller ecosystem than LangSmith