LangSmith vs Plausible Analytics
LLM observability, testing & evaluation — by LangChain
vs. Privacy-first web analytics — cookieless, no GDPR/CCPA nightmare
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
Plausible Analytics
Self-Hosted (CE)
Community Edition — AGPL-licensed, run on your own infra.
$0 base (usage-based)
Starter
$9/month. 1 site. Basic dashboard, goals, 3-year data retention.
$9/mo
Growth
$14/month. 3 sites + 3 team members. Shared dashboards + team mgmt.
$14/mo
Business
$19/month. 10 sites + 10 members. Custom properties, API access, funnels, 5-year retention.
$19/mo
Enterprise
Custom. SSO, managed proxy, priority support.
Custom
Free-tier quotas head-to-head
Comparing developer on LangSmith vs starter on Plausible Analytics.
| Metric | LangSmith | Plausible Analytics |
|---|---|---|
| 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.
Plausible Analytics · 16 features
- 404 Error Tracking — Auto-detect 404 pages.
- Custom Properties — Attach arbitrary properties to events (Business+).
- Email/Slack Reports — Weekly + monthly reports to email/Slack.
- File Download Tracking — Track PDF/DOC/ZIP downloads.
- Funnels — Multi-step funnel analysis (Business+).
- Goals & Conversions — Track custom events + pageview-based goals.
- Import from Google Analytics — Import historical GA data via script.
- Managed Proxy (Ent) — Proxy plausible.io through your domain to bypass ad-blockers.
- Outbound Link Tracking — One-line extension to track outbound clicks.
- Revenue Goals — Track $ amounts per goal. Great for e-commerce.
- Self-Hosting — Run via Docker. AGPL Community Edition.
- Shared Dashboards — Public or password-protected share links.
- Single-page Dashboard — All your metrics on one page: visitors, pageviews, sources, devices, countries, …
- Stats API — Pull data into your own tools via REST. Business+.
- Team Management — Owners, admins, viewers per site.
- UTM Campaigns — Track utm_source/medium/campaign automatically.
Developer interfaces
| Kind | LangSmith | Plausible Analytics |
|---|---|---|
| CLI | LangSmith CLI | — |
| SDK | langsmith-js, langsmith-python | @nuxtjs/plausible + plugins, plausible-tracker (npm) |
| REST | LangSmith REST API | Events API, Plausible Stats API, Sites Management API |
| MCP | LangSmith MCP | — |
| OTHER | LangSmith Dashboard | Tracker Script (<script>) |
Staxly is an independent catalog of developer platforms. Outbound links to LangSmith and Plausible Analytics are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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