Opik
Free tierOpen-source AI observability & evaluation platform for the agentic era
Free tier available·Technical·API available·Open source
Key strengths
End-to-end agent trace logging and visualization30+ LLM-as-a-Judge evaluation metricsAutomated code fix suggestions via Ollie coding assistantTrue open-source with self-hosting supportReal-time production monitoring with guardrails and cost tracking
Free tier + paid plans
United States
Founded 2023
Self-hostable
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Recent changes
- Plans updated: Free tier available (no credit card required); enterprise plan available (contact sales). Open-source version is free to self-host.
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Opik is best suited for:
- LLM application developers who need tracing, evaluation, and monitoring across RAG systems and agentic workflows
- ML/AI engineers running automated evaluation pipelines using LLM-as-a-judge with 30+ metrics
- Platform/infra teams requiring self-hosted observability with Apache 2.0 licensing and no vendor lock-in
- Coding agent teams using Claude Code or Codex who need cost intelligence and usage visibility
- Enterprise AI teams needing production guardrails, PII protection, and scalable monitoring
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