LangSmith
8.0#1 in llm gateway software$39 usage-basedFree planWebAPILinuxmacOS
VisitLangSmith vs PromptOps Manager
PromptOps Manager
6.1#8 in prompting toolFree planFree planWebAPISelf-hosted
VisitWhat both publish
| Fact | LangSmith | PromptOps Manager |
|---|---|---|
| Deployment | Deployment provides managed or self-hosted agent servers with streaming, cron scheduling, authentication, MCP support and more than 30 API endpoints. | The quick start uses Docker Compose and lists Docker 24.0 and Docker Compose v2 as prerequisites. |
| Evaluation | Evaluation supports offline datasets, online production evaluations, human annotation queues and side-by-side experiment comparison. | The llm_judge assertion uses a second LLM call to grade a response and explain its reasoning. |
| Integrations | Documented integrations cover OpenAI, Anthropic, Bedrock, Gemini, Mistral, LiteLLM, OpenTelemetry, CrewAI, Vercel AI SDK, PydanticAI, AutoGen and many other frameworks and providers. | The documented LLM providers are OpenAI and Anthropic, with a fake provider for hardcoded responses. |
| Purpose | LangSmith is a commercial agent engineering platform for building, testing, deploying, monitoring, and improving AI agents. | PromptOps Manager is a self-hosted, open-source registry for versioning, testing, and promoting LLM prompts. |
LangSmith plans
- DeveloperFree
- Plus$39 a month
- EnterprisePriced on request
PromptOps Manager plans
- Free / self-hostedFree
Pick LangSmith if…
LangSmith suits teams building or operating AI agents that need evaluation, prompt workflows, and observability. It supports both hosted and self-hosted deployment options.
Pick PromptOps Manager if…
PromptOps Manager suits developers who want to run their own prompt registry and control prompt promotion across environments. It is useful for teams integrating OpenAI or Anthropic prompts into apps and automations.