LangSmith vs New Relic: Which Is Better in 2026?
A side-by-side comparison of LangSmith and New Relic, two dev tools tools — what each does, who it's best for, and how to choose between them.
LangSmith
An observability and evaluation platform for LLM apps and AI agents — trace, monitor and debug what they really do.
- Category
- Dev Tools
- Rating
- Not yet rated
- Best for
- observability, llm, agent monitoring
New Relic
A full observability platform to monitor application performance, infrastructure, and logs in one place.
- Category
- Dev Tools
- Rating
- Not yet rated
- Best for
- observability, APM, monitoring
| At a glance | LangSmith | New Relic |
|---|---|---|
| What it is | An observability and evaluation platform for LLM apps and AI agents — trace, monitor and debug what they really do. | A full observability platform to monitor application performance, infrastructure, and logs in one place. |
| Category | Dev Tools | Dev Tools |
| Type | Software | Software |
| Best for | observability, llm, agent monitoring, tracing | observability, APM, monitoring, performance |
What is LangSmith?
What is New Relic?
LangSmith vs New Relic: which should you choose?
LangSmith and New Relic both serve the dev tools space, so the best choice depends on your priorities. Choose LangSmith if you want An observability and evaluation platform for LLM apps and AI agents — trace, monitor and debug what they… Choose New Relic if you want A full observability platform to monitor application performance, infrastructure, and logs in one place.The smartest move is to try each one's free tier or trial on a real task — that's the fastest way to feel the difference and pick the tool you'll actually stick with.
Frequently asked questions
Is LangSmith better than New Relic?
It depends on what you need. LangSmith is An observability and evaluation platform for LLM apps and AI agents — trace, monitor and debug what they really do. New Relic is A full observability platform to monitor application performance, infrastructure, and logs in one place. Both are dev tools tools, so the right pick comes down to your specific priorities, budget and workflow.
What's the main difference between LangSmith and New Relic?
LangSmith focuses on An observability and evaluation platform for LLM apps and AI agents — trace, monitor and debug what they really do. while New Relic focuses on A full observability platform to monitor application performance, infrastructure, and logs in one place. Read the full breakdown above and check each tool's site for current features and pricing.
Can I use both LangSmith and New Relic?
In many cases, yes — teams often use complementary tools together. Whether it makes sense depends on overlap in functionality and your budget. Try the free tier or trial of each to see how they fit your stack before committing.
Which is cheaper, LangSmith or New Relic?
Pricing changes often, so check each tool's pricing page for the latest. Many tools offer a free tier or trial, which is the best way to evaluate value for your specific usage before you pay.