Agentifact assessment — independently scored, not sponsored. Last verified Mar 6, 2026.
Opik by Comet
Open-source LLM evaluation and observability platform by CometML. Traces agentic and RAG workflows, evaluates outputs with LLM-as-judge metrics including hallucination detection, answer relevance, and context precision, and integrates into CI/CD via pytest. Self-hostable via Docker or Kubernetes; handles 40M+ traces daily. Cloud-hosted free tier available with enterprise plans.
Viable option — review the tradeoffs
You need to trace, debug, and evaluate agentic or RAG workflows without building observability from scratch.
Handles 40M+ traces/day at scale; easy integrations with LangChain/OpenAI; fast evals but requires eval datasets for optimization; open-source with 17k+ GitHub stars.
You want automated LLM output evaluation and prompt optimization in your dev loop.
Solid for semantic evals on RAG/agents; programmatic flexibility; community-driven updates keep it fresh but expect some manual dataset prep.
You need production monitoring for LLM apps without vendor lock-in.
Reliable at high volume; open-source avoids lock-in but self-hosting needs infra management.
Eval datasets required
Prompt optimization and LLM-as-judge metrics need your own labeled datasets; no built-in generation.
Self-hosting ops overhead
Docker/K8s setup handles scale but requires DevOps for prod monitoring; use cloud tier to avoid.
Trust Breakdown
What It Actually Does
Opik by Comet tracks and monitors your AI language model apps to spot issues like inaccurate responses or slow performance. It automates testing with built-in checks for answer quality and lets you compare experiments to improve reliability.[1][2][4]
Open-source LLM evaluation and observability platform by CometML. Traces agentic and RAG workflows, evaluates outputs with LLM-as-judge metrics including hallucination detection, answer relevance, and context precision, and integrates into CI/CD via pytest. Self-hostable via Docker or Kubernetes; handles 40M+ traces daily.
Cloud-hosted free tier available with enterprise plans.
Fit Assessment
Best for
- ✓llm-evaluation
- ✓model-monitoring
- ✓experiment-tracking
- ✓data-annotation
Score Breakdown
Protocol Support
Capabilities
Governance
- audit-log