Softwr

Logging · head to head

Grafana Loki vs Sumo Logic

Grafana Loki logo

Grafana Loki

Logging

Log Aggregation for Grafana Stack

From
Free
Rated
-
Full reviewWebsite
Sumo Logic logo

Sumo Logic

Logging

Cloud Monitoring, Logging, and Security Analytics

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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; Sumo Logic neither the Essentials nor the Enterprise Suite package lists a price on the pricing page; both link to Contact Sales
  • They diverge on capability: Grafana Loki covers Label-based indexing, Sumo Logic covers Metrics collection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Grafana Loki and Sumo Logic actually diverge.

Attributes where Grafana Loki and Sumo Logic differ
AttributeGrafana LokiSumo Logic
Pricing modelfreemiumusage-based
PlatformsSelf-hosted (open source), Managed (Grafana Cloud Logs), Enterprise (self-managed with support)Web, Api
Founded20142010

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

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 Loki

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

Only in Sumo Logic

  • Metrics collection
  • Real-time analytics
  • Custom dashboards

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.

Grafana Loki

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

Sumo Logic

  • Cloud-native log analytics across applications and infrastructurenot Grafana Loki
  • Running a SIEM with MITRE ATT&CK mapped detections and UEBAnot Grafana Loki
  • Compliance and audit readiness reporting from log datanot Grafana Loki

Where each one falls short

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

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

Sumo Logic

  • Neither the Essentials nor the Enterprise Suite package lists a price on the pricing page; both link to Contact Sales
  • Quoted per GB figures assume an annual commitment, an average of 1 GB of log ingest per day and a US deployment region
  • Pricing varies by the AWS deployment region chosen, so the same volume costs differently in Dublin, Frankfurt, Sydney or Tokyo
  • Flex pricing bills per TB scanned rather than per GB ingested, so query activity drives the bill
  • Feature activation is subject to minimum volume, minimum user counts and service requirements confirmed at the time of the transaction
  • The API is limited to four calls per section, ten concurrent in-flight requests, and query processing times out after two minutes
  • Self-serve credit card purchase is capped at $25,000; larger purchases must go through sales or a reseller

Pricing, plan by plan

Grafana Loki

Free

No published plan breakdown. See the Grafana Loki review.

Sumo Logic

Free
  • FreeFree
    • Log aggregation
    • Metrics collection
    • Real-time analytics

Which should you pick?

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

Choose Sumo Logic if

  • You need metrics collection.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want real-time analytics.
Sumo Logic review

Questions people ask

Is Grafana Loki or Sumo Logic better?
Neither clearly leads. Grafana Loki starts at Free and Sumo Logic at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Grafana Loki or Sumo Logic?
Grafana Loki starts at Free and Sumo Logic at Free.
Does Grafana Loki or Sumo Logic run on more platforms?
Grafana Loki runs on Self-hosted (open source), Managed (Grafana Cloud Logs), Enterprise (self-managed with support). Sumo Logic runs on Web, Api.
Can I use Grafana Loki for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grafana Loki best used for?
Grafana Loki is most often used for cost-sensitive organisations deploying kubernetes and prometheus ecosystems, teams needing index-free log aggregation for high-volume environments. Of those, cost-sensitive organisations deploying kubernetes and prometheus ecosystems and teams needing index-free log aggregation for high-volume environments are not what Sumo Logic is typically brought in for.
What can Grafana Loki do that Sumo Logic cannot?
Grafana Loki covers Label-based indexing, LogQL language, Cost-effective. Sumo Logic covers Metrics collection, Real-time analytics, Custom dashboards. Both handle Log aggregation, API, Webhooks, REST.

Answered from the vendors’ own pages

Grafana Loki: Is there a free tier for Grafana Cloud?

Yes, Grafana Cloud has a Free Forever plan at no cost with no registration required. The free tier is suitable for personal projects and early-stage startups.

Source
Sumo Logic: How much does Sumo Logic cost?

Sumo Logic does not publish specific pricing on its pricing page. Essentials plan is available via self-serve credit card for up to $25,000, with Enterprise Suite requiring sales contact for quotes.

Source
Grafana Loki: How long is data retained in Grafana's free plan?

The free tier retains metrics, logs, traces, and profiles for 14 days.

Source
Sumo Logic: How is Sumo Logic priced?

Sumo Logic uses a credit-based pricing model. Logs are measured by GB scanned during queries, metrics by Data Points per Minute, and traces up to 5GB per day on Essentials.

Source
Grafana Loki: What is the minimum cost for Grafana Enterprise?

Grafana Enterprise has a minimum annual commitment of 25,000 dollars.

Source
Sumo Logic: Is there a free trial?

Yes, Sumo Logic offers a 30-day free trial for the Essentials plan, which is available via self-serve credit card signup.

Source
Grafana Loki: Do I need a credit card to use Grafana's free tier?

No, Grafana Cloud's Free Forever plan requires no credit card to get started.

Source
Sumo Logic: What are the data retention limits?

The Essentials plan supports up to 365 days of log retention, 300 log monitors, 500 metric monitors, and 5GB per day trace storage.

Source
Grafana Loki: How is Grafana Cloud billed?

Grafana Cloud Pro starts at 19 dollars per month with usage-based charges on top. Billing is monthly based on your consumption. Grafana offers automatic volume discounts based on your spending.

Source
Share

Related pages

More on Grafana Loki

More on Sumo Logic

Keep looking

Other head to heads