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Splunk Enterprise vs Grafana Loki

Splunk Enterprise logo

Splunk Enterprise

Software

Enterprise Search, Monitoring, and Analytics

From
On request
Rated
-
Full reviewWebsite
Grafana Loki logo

Grafana Loki

Software

Log Aggregation for Grafana Stack

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Grafana Loki has a free tier, so it costs nothing to try first.
  • Each has a real cost: Splunk Enterprise splunk Platform and Enterprise Security offerings carry no published rate and require contacting sales for a quote; Grafana Loki grafana Cloud Logs Pro plan includes only 30-day retention; retention beyond 30 days requires Enterprise plan with minimum $25,000 annual commitment
  • They diverge on capability: Splunk Enterprise covers Real-time monitoring, Grafana Loki covers Label-based indexing.

Where they differ

Only the attributes on which Splunk Enterprise and Grafana Loki actually diverge.

Attributes where Splunk Enterprise and Grafana Loki differ
AttributeSplunk EnterpriseGrafana Loki
Starting priceOn requestFree
Pricing modelusage-basedfreemium
Free tierNoYes
PlatformsWeb, ApiSelf-hosted (open source), Managed (Grafana Cloud Logs), Enterprise (self-managed with support)
Founded20032014

Identical on both: user rating (Not yet rated), category (Unknown).

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 Splunk Enterprise

  • Real-time monitoring
  • Advanced analytics
  • Compliance

Only in Grafana Loki

  • Label-based indexing
  • LogQL language
  • Cost-effective

Both cover

  • Log aggregation
  • API
  • Webhooks
  • REST
  • Web support
  • Api support

What people use each for

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

Splunk Enterprise

  • Indexing and searching machine data and logs at enterprise scalenot Grafana Loki
  • Security information and event management via Enterprise Securitynot Grafana Loki
  • IT service intelligence and infrastructure observabilitynot Grafana Loki

Grafana Loki

  • Cost-sensitive organisations deploying Kubernetes and Prometheus ecosystemsnot Splunk Enterprise
  • Teams needing index-free log aggregation for high-volume environmentsnot Splunk Enterprise

Where each one falls short

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

Splunk Enterprise

  • Splunk Platform and Enterprise Security offerings carry no published rate and require contacting sales for a quote
  • Four different pricing models are offered (activity, ingest, workload and entity based) and the applicable one depends on the product purchased
  • Published Observability Cloud rates start at $15 per host per month and are billed annually rather than monthly
  • Volume discounts are not published and require direct consultation with sales

Grafana Loki

  • Grafana Cloud Logs Pro plan includes only 30-day retention; retention beyond 30 days requires Enterprise plan with minimum $25,000 annual commitment
  • Open-source version requires self-hosting all infrastructure including storage and scaling

Pricing, plan by plan

Splunk Enterprise

On request
  • Starter$undefined/month
    • Log aggregation
    • Real-time monitoring
    • Advanced analytics

Grafana Loki

Free

No published plan breakdown. See the Grafana Loki review.

Which should you pick?

Choose Splunk Enterprise if

  • You need real-time monitoring.
  • You work on Web, Api.
  • You also want advanced analytics.
Splunk Enterprise review

Choose Grafana Loki if

  • You need label-based indexing.
  • You want to start without paying.
  • You work on Self-hosted (open source), Managed (Grafana Cloud Logs), Enterprise (self-managed with support).
  • You also want logql language.
Grafana Loki review

Questions people ask

Is Splunk Enterprise or Grafana Loki better?
Neither clearly leads. Splunk Enterprise starts at On request and Grafana Loki at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Splunk Enterprise or Grafana Loki?
Grafana Loki has a free tier; the other does not. Paid plans start at On request for Splunk Enterprise and Free for Grafana Loki.
Does Splunk Enterprise or Grafana Loki run on more platforms?
Splunk Enterprise runs on Web, Api. Grafana Loki runs on Self-hosted (open source), Managed (Grafana Cloud Logs), Enterprise (self-managed with support).
Can I use Grafana Loki for free?
Yes. Grafana Loki has a free tier, so you can try it without paying. Splunk Enterprise starts at On request.
What is Splunk Enterprise best used for?
Splunk Enterprise is most often used for indexing and searching machine data and logs at enterprise scale, security information and event management via enterprise security, it service intelligence and infrastructure observability. Of those, indexing and searching machine data and logs at enterprise scale and security information and event management via enterprise security are not what Grafana Loki is typically brought in for.
What can Splunk Enterprise do that Grafana Loki cannot?
Splunk Enterprise covers Real-time monitoring, Advanced analytics, Compliance. Grafana Loki covers Label-based indexing, LogQL language, Cost-effective. Both handle Log aggregation, API, Webhooks, REST.
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