LangSmith
Eval Observability
Debug, test, and monitor LLM applications.
- Founded
- 2023
- Company
- Langchain
Pairwise compare
LangSmith vs Mastra
Side-by-side comparison of LangSmith and Mastra: category, pricing, company, tags, and public links.
$39/mo
Mastra
Agent Framework
The TypeScript agent framework.
- Founded
- 2024
- Company
- Mastra AI
Side-by-side fields
Static v1 catalog signals only. Live pricing and source verification are deferred.
| Field | LangSmith | Mastra |
|---|---|---|
| One-liner | Debug, test, and monitor LLM applications. | The TypeScript agent framework. |
| Category | Eval Observability | Agent Framework |
| Starting price / mo | $39/mo | Pricing unknown |
| Company | Langchain | Mastra AI |
| Founded | 2023 | 2024 |
| GitHub | — | github.com/mastra-ai/mastra |
| @LangChainAI | @mastra_ai | |
| Tags | Observability, Evals, Tracing | Agents, TypeScript, Open Source |
| Status | Tracked | Tracked |