LangSmith vs Portkey
| LangSmith | Portkey | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $39/mo | $49/mo |
| Open source | No | No |
| Platforms | api, self-hosted, Web | api, self-hosted, Web |
| Free plan | Yes | Yes |
| Token cost tracking | Yes | Yes |
| Paid from | — | 49 /mo |
| LLM trace capture | — | Yes |
| Output evaluations | — | Yes |
| Latency metrics | — | Yes |
| Failure tracking | — | Yes |
| Free-plan retention | — | 3 days |
Both are listed in Best AI LLM Observability Tools. On Samsung Mobile US Press, Portkey scores higher on our published basis.