Windsurf vs LangSmith
Agentic IDE (formerly Codeium) — Cascade AI flow + SWE-1.5 model
vs. LLM observability, testing & evaluation — by LangChain
Pricing tiers
Windsurf
Free
Daily + weekly refresh of basic quota. Includes SWE-1.5 + Cascade (limited) + Tab.
Free
Light
Unlimited with daily + weekly refresh. Free higher quota tier.
$0 base (usage-based)
Pro
$20/month. All premium models. Fast Context. Usage billed at API price.
$20/mo
Teams
$40/user/month. Team + admin dashboard + RBAC.
$40/mo
Max
$200/month. Unlimited + all features.
$200/mo
Enterprise
Custom. Unlimited + SSO + SOC 2 + on-prem option.
Custom
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
Free-tier quotas head-to-head
Comparing free on Windsurf vs developer on LangSmith.
| Metric | Windsurf | LangSmith |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Windsurf · 13 features
- Bring Your Own Key — Use your OpenAI/Anthropic/Azure keys to bypass quotas.
- Cascade — AI agent flow with read/write tool use across files.
- Chat Panel — Sidebar chat with codebase context.
- Command (inline edit) — Ctrl/Cmd+I → natural language edits.
- Deploys — One-click deployment to Netlify + custom targets.
- Fast Context — Optimized context retrieval engine for codebase queries.
- Image Input — Drag screenshots into chat for context.
- MCP Support — Hook MCP servers for extended tools.
- Memories — Persistent notes Cascade can refer to.
- Previews — Live preview pane inside IDE for web apps.
- Tab Completions — Next-edit + inline completions, multi-cursor aware.
- Terminal Integration — Cascade reads + writes terminal. Confirms risky ops.
- .windsurfrules — Project-level system prompts.
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.
Developer interfaces
| Kind | Windsurf | LangSmith |
|---|---|---|
| CLI | Windsurf CLI | LangSmith CLI |
| SDK | — | langsmith-js, langsmith-python |
| REST | — | LangSmith REST API |
| MCP | MCP Support | LangSmith MCP |
| OTHER | JetBrains / Xcode / Eclipse / Neovim Plugins, Windsurf Desktop App, .windsurfrules | LangSmith Dashboard |
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