Langfuse vs Plausible Analytics
Open-source LLM engineering platform — observability, prompts, evals
vs. Privacy-first web analytics — cookieless, no GDPR/CCPA nightmare
Pricing tiers
Langfuse
Hobby (Cloud Free)
Free. 50k units/month included. 30 days data access. 2 users. Community support.
Free
Self-Hosted (OSS)
MIT-licensed. Docker Compose or Kubernetes deployment. Unlimited.
$0 base (usage-based)
Core
$29/month. 100k units included ($8 per 100k overage). 90 days retention. Unlimited users. In-app support.
$29/mo
Pro
$199/month. 100k units included + same overage. 3 YEARS retention. Unlimited annotation queues. High rate limits.
$199/mo
Teams Add-on
+$300/month. Adds Enterprise SSO + fine-grained RBAC + dedicated Slack support to Pro.
$300/mo
Enterprise
$2,499/month. Everything + custom rate limits, uptime SLA, dedicated support engineer. Yearly options.
$2499/mo
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 hobby on Langfuse vs starter on Plausible Analytics.
| Metric | Langfuse | Plausible Analytics |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Langfuse · 16 features
- Annotation Queues — Human reviewers rate traces. Unlimited on Pro+.
- Dashboards — Aggregate metrics, cost, quality across projects.
- Datasets — Curate test sets from production traces. Run experiments.
- EU Cloud Region — GDPR-compliant hosting in EU.
- Evaluations — LLM-as-judge, manual scores, custom model-graded evaluators.
- LLM Cost Tracking — Automatic cost calculation per provider/model.
- OpenTelemetry Native — OTel SDK → Langfuse endpoint works out of box.
- Playground — Test prompts + models + variables live.
- Prompt Management — Version, tag, label prompts. Reference from code by label.
- Public API — Full REST API for ingest, query, prompt management.
- Python @observe decorator — One-line decorator to trace any function.
- Self-Hosting — Docker Compose + k8s Helm chart.
- Sessions — Group related traces (conversations, agent runs).
- Tracing — Capture every LLM call, tool call, nested span with inputs/outputs/cost.
- Users Tracking — Segment traces by user ID, track per-user cost.
- Webhooks — Subscribe to trace completion events.
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 | Langfuse | Plausible Analytics |
|---|---|---|
| SDK | langfuse-js, langfuse-python | @nuxtjs/plausible + plugins, plausible-tracker (npm) |
| REST | Langfuse REST API | Events API, Plausible Stats API, Sites Management API |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | Tracker Script (<script>) |
Staxly is an independent catalog of developer platforms. Outbound links to Langfuse 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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