← Back to issue15 / 31 · Week of Jun 22, 2026

Opik eval and tracing stack

Opik is an open-source tracing, evaluation, and monitoring stack for LLM applications, RAG systems, and agent workflows. Why it matters: AI products become harder to improve when quality is judged only from a few successful runs. Traces and eval datasets create a repeatable way to compare prompt, model, and retrieval changes.

Try this: Instrument one small RAG or agent task, save a handful of representative examples, and use Opik to compare two prompt or model variants against the same cases.

GitHub 20.3k stars · Jul 4verify ↗
Source
GitHub - comet-ml/opik
View source →

Get the field brief every week.

One lead signal, three quick hits, one thing to try, one concept decoded - and the rest of the week on the wire. For people who want to know what matters and what to do next.

Subscribe free →
Free weekly·No spam·Unsubscribe anytime