LangSmith vs Ramp Router
LangSmith
langchain.comRamp Router
router.comSide by side
| Figure | LangSmith | Ramp Router |
|---|---|---|
| Price from | $39/mo | Free |
| 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 | 1 |
| Spec score · LLM Gateway Software | 9.2 (#1) | 7.5 (#25) |
| Spec score · LLM gateways | 9.3 (#2) | 7.4 (#25) |
| Founded | 2023 | 2019 |
| Headquarters | San Francisco, California, United States | New York, New York, United States |
| Hosting | The pricing page lists Cloud hosting for Developer and Plus, with Cloud, Hybrid, or Self-Hosted options for Enterprise. | The homepage says its vetted providers offer models hosted in the United States, with zero data retention options. |
| Purpose | LangSmith is a commercial agent engineering platform for building, testing, deploying, monitoring, and improving AI agents. | Ramp Router provides one endpoint for accessing multiple AI models and routes requests based on quality, cost, and availability. |
Plans
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.
Ramp Router
Ramp Router has no write-up on Specifiction yet; its figures are above.