What are the best alternatives to phoenix?

The top alternatives to phoenix are PostHog, SafetyBench Eval, Langfuse, ranked by real usage data on Unfragile.

Are there free alternatives to phoenix?

Yes, 19 free alternatives to phoenix exist, including PostHog, SafetyBench Eval, Langfuse.

20 alternatives ranked by real usage data. phoenix scores 32/100 — 20 tools score higher.

Originalphoenix

AI Observability & Evaluation

20 alternatives

19 free options

20 score higher

Open-source product analytics with LLM observability — traces, costs, evals unified with product metrics.