OpenRouter
One API in front of 400+ models with live price and latency data.
Full OpenRouter record →Head to head
OpenRouter vs LangSmith
OpenRouter (OpenRouter) and LangSmith (LangChain) both sit in Infrastructure & Serving. OpenRouter is the cheaper entry point at Pass-through pricing + 5%. Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | OpenRouter OpenRouter | LangSmith LangChain |
|---|---|---|
| Segment | Infrastructure & Serving | Infrastructure & Serving |
| Version | 2025 | 2025 |
| Entry cost | Pass-through pricing + 5% | Free tier · from $39/mo |
| Pricing tiers | — | — |
| Model stack | 400+ models | model-agnostic |
| Context window | — | — |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 0 |
| Origin | Global | Global |
| Capabilities | Model routing, Fallbacks, Usage analytics | Traces, Datasets, Evaluators |
LangSmith
Tracing, evals and monitoring for LLM applications.
Full LangSmith record →