LangSmith vs Rollbar

LangSmith

Rollbar

LangSmith · 14 features

• Alerts — Threshold alerts on latency, cost, eval metrics.
• Annotation Queues — Human-review workflows for trace quality rating.
• Custom Dashboards — Aggregate metrics dashboards per project/tag.
• Datasets — Collect examples → use as eval sets or training data.
• Evaluations — LLM-as-judge, embedding similarity, custom Python evaluators, offline batch eval…
• LangChain Integration — Auto-trace any LangChain/LangGraph run with env var.
• LangGraph Integration — First-class trace + eval for LangGraph agents.
• LLM Tracing — Automatic trace every LLM call + tool call + chain step.
• OpenTelemetry Export — Export traces as OTLP to Datadog/Honeycomb/etc.
• Playground — Test prompts + models inline before deploying.
• Prompt Canvas — Visual prompt editor with live test + eval.
• Prompt Hub — Public + private prompt library with versioning.
• Self-Hosted (Enterprise) — Docker + k8s deployment in your infra.
• Threads + Sessions — Group traces into conversational sessions.

Rollbar · 15 features

• Alerts — Rule-based alerts to Slack/email/PagerDuty.
• Custom Events — Log arbitrary events via API.
• Deploy Tracking — Annotate errors with deploy SHAs.
• Error Tracking — Capture uncaught exceptions + crashes.
• Intelligent Grouping — Fingerprint-based deduplication.
• Notifiers — 60+ alert channels (Slack, Jira, Teams, PagerDuty, Opsgenie, etc.).
• Person Tracking — Tie errors to end users.
• Real User Monitoring — Browser performance + error correlation.
• Rollbar AI Triage — AI root-cause analysis + suggested fixes.
• RQL Query — SQL-like error querying.
• Session Replay (add-on) — Video-like user session reconstruction.
• Source Maps — Minified JS → original.
• Telemetry Timeline — Breadcrumbs of events before crash.
• Webhooks — Outbound event streaming.
• Workflow Automations — Auto-assign owners, auto-close resolved items.