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
Self-hostable
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- LLM trace instrumentation — Capture hierarchical traces of every LLM call, tool invocation, and retrieval step across complex agentic workflows using the Opik SDK.
- Automated evaluation pipelines — Run 30+ LLM-as-a-Judge metrics against datasets or live production traffic; integrate eval runs into CI/CD for continuous quality gates.
- Test Suite authoring — Define plain-text global and item-level assertions to replace manual vibe checks with structured, repeatable unit tests for agent behavior.
- Automated codebase remediation — Use Ollie to analyze failing traces, generate code diffs, apply fixes with version control, and auto-write regression test cases.
- Prompt versioning & optimization — Track, version, and deploy prompt/parameter sets; apply six advanced prompt optimization algorithms to improve agent performance end-to-end.
- Production observability & guardrails — Monitor real-time token cost, model usage, and compliance risk; trigger alerts and apply content guardrails via the Guardrails API.