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Cloud · head to head

Grafana Cloud vs Prometheus

Grafana Cloud logo

Grafana Cloud

Cloud

Composable observability platform

From
Free
Rated
-
Full reviewWebsite
Prometheus logo

Prometheus

Networking

Open source monitoring and alerting toolkit for cloud native environments

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Grafana Cloud active Series (AS) billing model is difficult to predict and control; misconfiguration can cause sudden spikes and unexpected bills; Prometheus not suitable for per-request billing as collected data lacks 100% accuracy
  • They diverge on capability: Grafana Cloud covers Grafana Dashboards, Prometheus covers Multi-dimensional Data Model.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Grafana Cloud and Prometheus actually diverge.

Attributes where Grafana Cloud and Prometheus differ
AttributeGrafana CloudPrometheus
Pricing modelUnknownopen-source
PlatformsWeb (Chrome, Edge, Firefox, Safari), APILinux, macOS, Windows
CategoryCloudNetworking
Founded20142015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Grafana Cloud

  • Grafana Dashboards
  • Prometheus Metrics
  • Loki Logs
  • Tempo Traces
  • Alerting
  • OnCall
  • Synthetic Monitoring
  • Incident Management

Only in Prometheus

  • Multi-dimensional Data Model
  • PromQL Query Language
  • Pull-based Collection
  • Service Discovery
  • Alerting Rules
  • Federation
  • Local Storage
  • Grafana

Both cover

  • Kubernetes

What people use each for

The jobs each tool is most often brought in to do.

Grafana Cloud

  • Infrastructure monitoringnot Prometheus
  • Application monitoringnot Prometheus
  • Log aggregationnot Prometheus
  • Distributed tracingnot Prometheus

Prometheus

  • Monitoring and alerting systemnot Grafana Cloud
  • Time-series databasenot Grafana Cloud
  • Infrastructure metrics collectionnot Grafana Cloud

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Grafana Cloud

  • Active Series (AS) billing model is difficult to predict and control; misconfiguration can cause sudden spikes and unexpected bills
  • Reduced control and customization compared to self-hosted Grafana instances
  • Data sovereignty concerns for organizations requiring on-premises data retention
  • Limited reporting types compared to traditional BI tools for compliance and audit requirements

Prometheus

  • Not suitable for per-request billing as collected data lacks 100% accuracy
  • Hard limit on scrape body size; large responses cause scrape failure
  • Per-scrape sample limit enforced; exceeding limit marks targets as failed
  • Not designed for long-term durable storage; optimised for metrics collection

Pricing, plan by plan

Grafana Cloud

Free
  • FreeFree
    • 10k active series (metrics)
    • 50GB logs/traces per month
    • 3 active users
  • Pro$19/month
    • Usage-based pricing beyond free tier
    • 8 USD per active visualization user
    • Included Grafana Alerting
  • Enterprise$25000/year
    • Minimum annual commitment
    • Full-service deployment options
    • Premium support

Prometheus

Free
  • Prometheus (Open Source)Free
    • 100% open source
    • Community-driven project
    • Apache 2 License

Which should you pick?

Choose Grafana Cloud if

  • You need grafana dashboards.
  • You want to start without paying.
  • You work on Web (Chrome, Edge, Firefox, Safari), API.
  • You also want prometheus metrics.
Grafana Cloud review

Choose Prometheus if

  • You need multi-dimensional data model.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want promql query language.
Prometheus review

Questions people ask

Is Grafana Cloud or Prometheus better?
Neither clearly leads. Grafana Cloud starts at Free and Prometheus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Grafana Cloud or Prometheus?
Grafana Cloud starts at Free and Prometheus at Free.
Does Grafana Cloud or Prometheus run on more platforms?
Grafana Cloud runs on Web (Chrome, Edge, Firefox, Safari), API. Prometheus runs on Linux, macOS, Windows.
Can I use Grafana Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grafana Cloud best used for?
Grafana Cloud is most often used for infrastructure monitoring, application monitoring, log aggregation, distributed tracing. Of those, infrastructure monitoring and application monitoring are not what Prometheus is typically brought in for.
What can Grafana Cloud do that Prometheus cannot?
Grafana Cloud covers Grafana Dashboards, Prometheus Metrics, Loki Logs, Tempo Traces. Prometheus covers Multi-dimensional Data Model, PromQL Query Language, Pull-based Collection, Service Discovery. Both handle Kubernetes.

Answered from the vendors’ own pages

Grafana Cloud: What are the exact limits of Grafana Cloud's free tier?

Grafana Cloud free tier includes 10,000 active series for metrics, 50GB logs and traces per month, 3 active visualization users, and 14-day retention with community support. No credit card required.

Source
Prometheus: What does Prometheus cost?

Prometheus is completely free and open source. There are no pricing tiers or paid plans. The entire project is licensed under Apache 2 and hosted on GitHub.

Source
Grafana Cloud: How is Grafana Cloud billed, and what are the per-unit costs?

Grafana Cloud Pro tier starts at $19/month platform fee plus usage-based charges. Metrics cost $6.50 per 1,000 active series above free limits, logs and traces are charged per GB ingested, and visualization users are $8 per active user.

Source
Prometheus: Is Prometheus commercial software or free?

Prometheus is 100% open source and community-driven. It is a CNCF graduated project with no commercial restrictions or licensing fees.

Source
Grafana Cloud: Can I use Grafana Cloud for open-source Grafana deployments?

Grafana Cloud is the managed cloud service version. Open-source Grafana is free and can be self-hosted indefinitely on your own infrastructure.

Source
Prometheus: How is Prometheus licensed?

Prometheus is licensed under the Apache 2 License, which permits free use, modification, and distribution for commercial and non-commercial purposes.

Source
Grafana Cloud: What observability signals does Grafana Cloud include?

Grafana Cloud includes metrics (via Mimir), logs (via Loki), traces (via Tempo), profiles, and synthetics, with unified querying and visualization across all signals.

Source
Grafana Cloud: Does Grafana Cloud include alerting and how is it priced?

Yes, Grafana Alerting is included at no additional charge across all tiers. Rule storage, evaluation, and notification delivery are covered by the platform fee with no per-alert or per-notification fees.

Source
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