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Opik by Comet is described as an open-source LLM evaluation and observability framework for tracing, evaluating, monitoring, and improving LLM applications.
Yes. The provided metadata identifies Opik as open source and includes an Apache-2 tag, and current Comet pricing lists an Open Source plan at $0.
Opik fits into the LLM Observability & Evals category because its stated capabilities include tracing, evaluation, monitoring, prompt-related iteration, and application improvement.
Prompt management is included in the supplied tags, alongside tracing, evals, observability, and open-source. Exact prompt-management workflow details are not confirmed in the supplied scrape.
Current Comet pricing lists Open Source at $0, Free Cloud at $0 for up to 10 team members with 25k spans per month and 60-day retention, Pro Cloud at $19 per month for up to 50 team members with 100k spans per month and 60-day retention, and Enterprise at a custom quote.
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Last verified March 2026