LangSmith vs Cursor
LLM observability, testing & evaluation — by LangChain
vs. AI-native code editor — VS Code fork with deep AI integration
Pricing tiers
LangSmith
Developer (Free)
Free forever. 5,000 traces/month. 14-day retention. 1 seat. Basic evaluations.
Free
Plus
$39/seat/month. 10k base traces included ($2.50 per 1k overage). Full evaluations, custom dashboards, email support.
$39/mo
Enterprise
Custom. Self-host option, SSO, custom retention, dedicated support.
Custom
Cursor
Hobby (Free)
Free. Limited Agent requests + Tab completions. No credit card.
Free
Pro
$20/month. Extended Agent limits, frontier models, MCPs + skills + hooks, cloud agents.
$20/mo
Teams
$40/user/month. Shared chats + commands + rules, centralized billing, RBAC, SAML/OIDC SSO.
$40/mo
Pro+ (Recommended)
$60/month. Everything in Pro + 3x usage on OpenAI, Claude, Gemini.
$60/mo
Ultra
$200/month. 20x usage multiplier + priority access to new features.
$200/mo
Enterprise
Custom. Pooled usage, SCIM, AI code tracking API + audit logs, priority support.
Custom
Free-tier quotas head-to-head
Comparing developer on LangSmith vs hobby on Cursor.
| Metric | LangSmith | Cursor |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
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.
Cursor · 15 features
- Agent Mode — Autonomous multi-file editing + tool use. Runs terminal commands with confirmati…
- Background Agents — Run agents in the cloud to tackle longer tasks async.
- BugBot (PR reviews) — AI reviewer on GitHub PRs.
- Chat (⌘L) — Conversational chat with codebase context.
- Cmd-K Inline Edit — Highlight code + ⌘K → natural language edit instruction.
- Codebase Indexing — Embedding-based semantic search over your codebase.
- Composer — Multi-file edit sessions with full context.
- .cursorrules / Project Rules — Custom system prompts per project to steer the AI.
- MCP Support — Add Model Context Protocol servers to extend agent capabilities.
- Privacy Mode — Data never used for training; zero-retention routing.
- Skills & Hooks — User-defined skills library + lifecycle hooks.
- Tab (multi-line completion) — Predictive completions including next-edit suggestions.
- Team Shared Context — Share chats, commands, rules across team.
- VS Code Extension Compat — Most VS Code extensions work via the marketplace.
- YOLO Mode — Auto-approve all agent actions (for trusted workflows).
Developer interfaces
| Kind | LangSmith | Cursor |
|---|---|---|
| CLI | LangSmith CLI | Cursor CLI |
| SDK | langsmith-js, langsmith-python | — |
| REST | LangSmith REST API | — |
| MCP | LangSmith MCP | Cursor MCP support |
| OTHER | LangSmith Dashboard | Cursor Desktop App, Cursor Rules (.cursorrules), Privacy Mode |
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