Langfuse vs Grafana Cloud
Open-source LLM engineering platform — observability, prompts, evals
vs. Fully-managed observability — Prometheus + Loki + Tempo + Grafana
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
Grafana Cloud
Free
Always free. 10k metrics series + 50 GB logs/traces/profiles + 3 users + 14-day retention.
Free
Self-Hosted (OSS)
Apache 2.0 / AGPL. Run Grafana + Mimir + Loki + Tempo yourself.
$0 base (usage-based)
Pro
$19/mo platform fee + usage-based overages. 10k metrics series + 50 GB included. 13-month metrics retention.
$19/mo
Enterprise
$25,000/year minimum. Custom retention, premium support, BYOC (Bring Your Own Cloud) option.
$25000/mo
Free-tier quotas head-to-head
Comparing hobby on Langfuse vs free on Grafana Cloud.
| Metric | Langfuse | Grafana Cloud |
|---|---|---|
| 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.
Grafana Cloud · 16 features
- Alloy (OTel agent) — Distribution of OpenTelemetry Collector with Grafana additions.
- Application Platform — Infrastructure + k8s + frontend + cloud provider integrations.
- Beyla (eBPF auto-instrumentation) — Zero-code auto-instrumentation via eBPF for any language.
- Faro (RUM) — Frontend observability — traces, logs, Core Web Vitals.
- Grafana in Azure Marketplace — "Azure Managed Grafana" — Azure-native deployment.
- Grafana Incident — Incident management with Slack-native flows.
- Grafana OnCall — On-call scheduling + incident response (powered by Amixr).
- Grafana SLO — Service level objective tracking + error budget visualization.
- Grafana (visualization) — Dashboards, variables, alerting, annotations over any datasource.
- k6 (synthetic + load testing) — Load testing + synthetic monitoring. JavaScript-based scripts.
- Loki (logs) — Prometheus-inspired log aggregation with LogQL.
- Mimir (metrics) — Horizontally-scalable Prometheus-compatible TSDB.
- Pyroscope (profiling) — Continuous profiling (CPU, memory, etc.).
- Self-Host Option — Full OSS stack deployable in your infra.
- Tempo (traces) — High-scale distributed tracing with TraceQL.
- Unified Alerting — Grafana-native alerting across metrics, logs, traces.
Developer interfaces
| Kind | Langfuse | Grafana Cloud |
|---|---|---|
| CLI | — | Grafana Alloy (agent), grafana-cli |
| SDK | langfuse-js, langfuse-python | Faro Web SDK (RUM) |
| REST | Langfuse REST API | Grafana HTTP API, Loki Push API |
| MCP | Langfuse MCP Server | — |
| OTHER | Langfuse Dashboard, OpenTelemetry endpoint | Prometheus Remote Write, Tempo OTLP |
Staxly is an independent catalog of developer platforms. Outbound links to Langfuse and Grafana Cloud are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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