LangSmith vs MLflow Tracing
| LangSmith | MLflow Tracing | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $39/mo | Free |
| Open source | No | No |
| Platforms | api, self-hosted, Web | api, self-hosted, Web |
| Free plan | Yes | Yes |
| Cost tracking | Yes | Yes |
| Session replay | — | Yes |
| Prompt and tool tracing | — | Yes |
| Deployment options | — | hybrid |
| Agent framework support | — | open_standard |
Both are listed in Best AI Agent Observability Tools, Best AI LLM Observability Tools. On Samsung Mobile US Press, LangSmith scores higher on our published basis.