Opik
Comet's open-source platform for tracing, evaluating and testing LLM applications and agents.
About Opik
Teams need to see what their LLM apps do and test changes before shipping them.
Who it’s for
- Developers building LLM apps and agents
- Teams that want an open-source alternative to hosted tracing
When to consider it
Consider Opik when you want the same feature set in a free self-hosted version and a hosted cloud.
Tradeoffs & limitations
- Apache-2.0 licensed; the free cloud plan includes 25,000 spans a month, and Pro is $19 a month.
SOTA overview · Documentation-based assessment · Sources & review method
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Sources & review method
Documentation-based assessment · Oct 3, 2026 · Prepared with AI assistance; not a hands-on benchmark.
Checked by SOTA · AI-assisted documentation review. Selection advice is our assessment; verify current requirements for your deployment.
Import history & original evidence
Opik official website
Comet's open-source platform for tracing, evaluating and testing LLM applications and agents.
Based on official pages and announcements checked on 2026-10-03. No hands-on test, performance benchmark or popularity ranking is claimed.