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LangSmith vs New Relic
Short answer: Pick LangSmith if you want LLM app observability; pick New Relic if you want AI-aware full-stack observability. LangSmith has a free plan, paid from $39/month per user; New Relic has a free plan.
LangSmithTracing, evals and monitoring for LLM apps
New RelicObservability platform for apps and infrastructureWhich to pick
Pick LangSmith if you want…
- LLM app observability
- Integrations with OpenAI SDK, Anthropic SDK or Vercel AI SDK (on LangSmith's list, not New Relic's)
Pick New Relic if you want…
- AI-aware full-stack observability
- App & infra observability
- Integrations with Prometheus, StatsD or eBPF (on New Relic's list, not LangSmith's)
Side by side
- What it is
- LangSmith:LangSmith provides tracing, monitoring, and evaluation for LLM applications and AI agents.
- New Relic:New Relic is an AI-powered observability platform that correlates telemetry across apps, infrastructure, and AI systems.
- Best for
- LangSmith:LLM app observability
- New Relic:AI-aware full-stack observability
- Who it’s for
- LangSmith:Developers and teams building LLM-based agents and applications.
- New Relic:Engineering, SRE, DevOps, and product teams needing full-stack monitoring.
- Pricing
- LangSmith:Freemium
- New Relic:Freemium
- Starting price
- LangSmith:$39/month per user (Plus)
- New Relic:—
- Free plan or trial
- LangSmith:Free plan (Developer)
- New Relic:Free plan (Free)
- Plans
- LangSmith:Developer $0 per seat per month · Plus $39 per seat per month
- New Relic:Free $0
- Works with
- LangSmith:OpenAI SDK, Anthropic SDK, Vercel AI SDK, LlamaIndex, OpenTelemetry, LangChain
- New Relic:OpenTelemetry, Prometheus, StatsD, eBPF, 800+ pre-built integrations
LangSmith features
- Tracing SDKs. Native tracing for popular agent frameworks via Python, TypeScript, Go, and Java SDKs.
- Real-time Monitoring. Dashboards show latency, cost, token usage and support alerts via webhooks or PagerDuty.
- Insights & Clustering. Unsupervised topic clustering and error-analysis templates automatically surface usage patterns.
- SmithDB Query Engine. Purpose-built database for fast, random-access queries, full-text search and JSON-path filtering.
- Self-hosted Options. Managed cloud, BYOC, or fully self-hosted deployments keep data inside your VPC.
- Online Eval as LLM-as-Judge. Run code and response evaluations in real time to score quality.
- Cost Tracking. Track token usage and LSUs, with pay-as-you-go pricing per trace volume.
- Alert Integrations. Webhook and PagerDuty alerts trigger on custom metric thresholds.
New Relic features
- AI-driven root cause analysis. Automatically identifies the cause of incidents across services and AI agents.
- Unified data layer. Collects logs, metrics, traces, and digital experience data in one place.
- Infrastructure & Kubernetes monitoring. Provides real-time health views for hosts, containers, and K8s clusters.
- Digital experience monitoring. Session replay, browser, mobile, and synthetic checks to track user friction.
- AI model monitoring. Tracks model performance, cost, and hallucinations with agentic tracing.
- Security & compliance. Vulnerability management, FedRAMP/HIPAA eligibility, and log obfuscation.
- OpenTelemetry support. Ingests data via OpenTelemetry, Prometheus, StatsD, eBPF and other standards.
- Extensible integrations. 800+ pre-built integrations for cloud, SaaS, and on-prem services.
LangSmith vs New Relic FAQ
What is the difference between LangSmith and New Relic?+
New Relic is an observability platform for apps and infrastructure, not tailored to LLM agent pipelines.
Should I use LangSmith or New Relic?+
Pick LangSmith if you want LLM app observability or integrations with OpenAI SDK, Anthropic SDK or Vercel AI SDK (on LangSmith's list, not New Relic's). Pick New Relic if you want AI-aware full-stack observability, app & infra observability or integrations with Prometheus, StatsD or eBPF (on New Relic's list, not LangSmith's).
Is LangSmith or New Relic free?+
LangSmith has a free plan (Developer); paid plans start at $39/month per user (Plus). New Relic has a free plan and paid plans.
Do LangSmith and New Relic integrate with the same tools?+
Partly. Both list OpenTelemetry. LangSmith also lists OpenAI SDK, Anthropic SDK, Vercel AI SDK, LlamaIndex and 1 more; New Relic also lists Prometheus, StatsD, eBPF and 800+ pre-built integrations.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.