Overview
Opik is an open-source LLM observability platform from Comet that combines tracing, evaluation, and monitoring — capture every call as a trace, attach scores, and watch dashboards in production.
It runs self-hosted or as managed Comet Cloud, and integrates with popular frameworks and the @track decorator.
flowchart LR call[your function] --> t["@track"] t --> opik[(Opik)] opik --> ui[traces / scores]
The Code samples tab shows tracing a function with @track.
When to use it
Choose Opik when you want tracing and evaluation together in one self-hostable platform — instrumenting an app for production monitoring while scoring quality, without stitching separate tools.