LangSmith vs UniterRouter
LangSmith
langchain.comUniterRouter
uniterouter.aiSide by side
| Figure | LangSmith | UniterRouter |
|---|---|---|
| Price from | $39/mo | $41.67/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 4 |
| Spec score · LLM Gateway Software | 9.2 (#1) | 7.6 (#23) |
| Spec score · LLM gateways | 9.3 (#2) | 7.9 (#16) |
| Integrations | Documented integrations cover OpenAI, Anthropic, Bedrock, Gemini, Mistral, LiteLLM, OpenTelemetry, CrewAI, Vercel AI SDK, PydanticAI, AutoGen and many other frameworks and providers. | The launch page lists OpenAI, Anthropic, and Google AI Studio provider keys, and the homepage lists cURL, TypeScript, Next.js, Python, Java, Rust, Go, PHP, and Ruby examples. |
| Purpose | LangSmith is a commercial agent engineering platform for building, testing, deploying, monitoring, and improving AI agents. | UniterRouter is a unified AI gateway that routes and analyzes requests across multiple LLM providers through one API. |
| Security | LangSmith's trust center lists SOC 2 Type II, ISO 27001:2022, GDPR and HIPAA compliance. | The privacy policy lists HTTPS encryption in transit, access controls, authentication for sensitive data, and regular security reviews and monitoring. |
Plans
UniterRouter
- Free PlanFree
- Pro Plan$50 a month
- Pro Plan$500 a year
- Enterprise PlanPriced on request
In their own words
LangSmith
LangSmith is a commercial agent-engineering platform for building, evaluating, deploying, monitoring, and improving AI agents. It supports offline evaluations on curated datasets and real-time scoring of production interactions. Evaluation methods include human review, heuristic checks, LLM-as-judge evaluators, pairwise comparisons, and custom Python or TypeScript evaluators. Annotation queues route runs to subject-matter experts for feedback that can calibrate evaluations, improve prompts, or augment datasets. The Playground compares prompt versions or model providers, and LangSmith chat can auto-improve prompts. Observability includes agent and retrieval tracing, token and general cost tracking, trajectory monitoring, online evaluations, and webhook or PagerDuty alerts. Traces can arrive through SDKs or an API from LangGraph, custom Python, or other stacks; SDKs are listed for Python, TypeScript, Go, and Java. Hosting ranges from cloud to hybrid and self-hosted Enterprise options. The Developer plan costs nothing, Plus costs $39 a month, and Enterprise pricing is custom.
UniterRouter
UniterRouter has no write-up on Specifiction yet; its figures are above.