{"slug":"opik","name":"Opik","domain":"comet.com","verdict":"As of 2026-07-14, ChatGPT, Claude, Gemini, Grok collectively rank Opik #5 of 9 for self-hosted llm observability tool (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/opik (modelsagree.com, CC BY 4.0).","best_rank":5,"categories":2,"brief":{"category":"best-self-hosted-llm-observability","title":"Best self-hosted LLM observability tool","rank":5,"of":9,"top":"Langfuse","day":"2026-07-19","why":[{"t":"first-class tracing plus eval-first workflow","m":["ChatGPT","Claude"],"q":"first-class tracing plus an eval-first workflow"},{"t":"clean self-hosting","m":["ChatGPT","Claude"],"q":"clean self-hosting"},{"t":"CI-friendly experiments and regression testing","m":["ChatGPT","Claude"],"q":"CI-friendly experiments"}],"gap":[{"t":"mature purpose-built self-hosted option","m":["ChatGPT","Claude","Gemini"],"q":"The most mature purpose-built self-hosted option"},{"t":"battle-tested at scale","m":["Claude","Grok"],"q":"battle-tested at scale for production RAG/agents"},{"t":"strong integrations","m":["Claude","Grok"],"q":"framework-agnostic with strong integrations"}],"fix":[{"t":"self-hosted scaling less battle-tested","m":["Claude"],"q":"self-hosted scaling/HA patterns are less battle-tested"},{"t":"heavier than simple observability needs","m":["ChatGPT"],"q":"heavier and more application-evaluation-centric"},{"t":"integrations and community still thin","m":["Claude"],"q":"the ecosystem of integrations and community answers is still thin"}]},"entries":[{"slug":"best-self-hosted-llm-observability","title":"Best self-hosted LLM observability tool","rank":5,"of":9,"score":4,"appearances":2,"modelRanks":{"ChatGPT":4,"Claude":4},"reason":"Capable self-hosted tracing for agents and RAG systems, with conversation threads, production dashboards, online evaluations, CI-friendly experiments, cost tracking, OpenTelemetry support, and unusually strong optimization tooling.","reasons":[{"model":"ChatGPT","reason":"Capable self-hosted tracing for agents and RAG systems, with conversation threads, production dashboards, online evaluations, CI-friendly experiments, cost tracking, OpenTelemetry support, and unusually strong optimization tooling."},{"model":"Claude","reason":"Comet's Apache-2.0 platform with clean self-hosting, first-class tracing plus an eval-first workflow (LLM-judge metrics, regression testing in CI) and rapid development velocity — near-tie with MLflow, ranked below it on operational track record"}],"fixes":[{"model":"ChatGPT","fix":"The platform is heavier and more application-evaluation-centric than teams wanting a simple, standards-first observability backend may need."},{"model":"Claude","fix":"Youngest of the group; self-hosted scaling/HA patterns are less battle-tested and the ecosystem of integrations and community answers is still thin compared to Langfuse"}],"updated":"2026-07-14","rank_history":{"days":["2026-07-13","2026-07-14"],"ranks":[4,null]},"api":"https://modelsagree.com/api/v1/best/best-self-hosted-llm-observability.json"},{"slug":"best-rag-evaluation-tool","title":"Best RAG evaluation tool","rank":7,"of":7,"score":1,"appearances":1,"modelRanks":{"ChatGPT":5},"reason":"A strong open-source all-in-one alternative with tracing, datasets, experiment comparison, human annotation, online evaluation, and useful RAG metrics including context precision, context recall, answer relevance, and hallucination; unusually good value for self-hosters","reasons":[{"model":"ChatGPT","reason":"A strong open-source all-in-one alternative with tracing, datasets, experiment comparison, human annotation, online evaluation, and useful RAG metrics including context precision, context recall, answer relevance, and hallucination; unusually good value for self-hosters"}],"fixes":[{"model":"ChatGPT","fix":"Its RAG-specific methodology, integrations, and accumulated practitioner guidance are not yet as deep as the higher-ranked tools"}],"updated":"2026-07-15","rank_history":{"days":["2026-07-11","2026-07-12","2026-07-13","2026-07-14","2026-07-15"],"ranks":[null,null,6,9,6]},"reasoning_shift":[{"model":"ChatGPT","from":"2026-07-14","to":"2026-07-15","added":[{"t":"human annotation","q":"human annotation"},{"t":"useful RAG metrics","q":"useful RAG metrics including context precision, context recall, answer relevance, and hallucination"},{"t":"good value for self-hosters","q":"unusually good value for self-hosters"}],"dropped":[{"t":"production monitoring","q":"production monitoring"},{"t":"heuristic and LLM-judge metrics","q":"both heuristic and LLM-judge metrics"},{"t":"alternative to Phoenix and LangSmith","q":"a practical integrated alternative to Phoenix and LangSmith"}]}],"api":"https://modelsagree.com/api/v1/best/best-rag-evaluation-tool.json"}],"page":"https://modelsagree.com/product/opik","check":"https://modelsagree.com/check?q=Opik","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}