Opik
Open-source LLM evaluation and observability platform from Comet — tracing, evaluation datasets, prompt playground with self-hosted and cloud options.
74
Hero Score
Popularity
72
Performance
85
Ecosystem
75
Maturity
61
Dev Experience
75
⭐ 19,415 stars⬇ 936.6K downloads/wkFirst release: Sep 2024Last release: May 2026
Async Support: YesPlugin Extensions: HighSpeed: FastDoc Quality: HighLearning Curve: Easy
Pros
- • Apache 2.0 licensed with both managed cloud and self-hosted Docker/Kubernetes deployment options
- • First-class evaluation datasets, experiments, and LLM-as-judge metrics built into the platform
- • Broad integration set — OpenAI, Anthropic, LangChain, LlamaIndex, LiteLLM, DSPy, CrewAI, and more
Cons
- • Younger project (2024) so feature surface and APIs are still maturing rapidly
- • Self-hosting full stack requires Docker Compose with multiple services (backend, frontend, ClickHouse)
- • Evaluation features overlap with Comet's existing experiment-tracking offering, which can be confusing