LangSmith
Eval Observability
Debug, test, and monitor LLM applications.
- Founded
- 2023
- Company
- Langchain
Pairwise compare
LangSmith vs PromptLayer
Side-by-side comparison of LangSmith and PromptLayer: category, pricing, company, tags, and public links.
$39/mo
PromptLayer
Prompt Dev
The platform for prompt engineers.
- Founded
- 2022
- Company
- Promptlayer
Side-by-side fields
Static v1 catalog signals only. Live pricing and source verification are deferred.
| Field | LangSmith | PromptLayer |
|---|---|---|
| One-liner | Debug, test, and monitor LLM applications. | The platform for prompt engineers. |
| Category | Eval Observability | Prompt Dev |
| Starting price / mo | $39/mo | $50/mo |
| Company | Langchain | Promptlayer |
| Founded | 2023 | 2022 |
| GitHub | — | github.com/MagnivOrg/prompt-layer-library |
| @LangChainAI | @promptlayer | |
| Tags | Observability, Evals, Tracing | Prompt Management, Observability, Evals |
| Status | Tracked | Tracked |