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Developer Tools · head to head

Atlantis vs LogRhythm SIEM

Atlantis logo

Atlantis

Developer Tools

Runs Terraform plan and apply from pull request comments, self-hosted and free

From
Free
Free plan
Yes
Full reviewWebsite
LogRhythm SIEM logo

LogRhythm SIEM

Cybersecurity

AI-powered SIEM platform for modern security operations

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Atlantis has a free tier, so it costs nothing to try first.
  • Each has a real cost: Atlantis there is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.; LogRhythm SIEM no pricing published; sales contact required
  • They diverge on capability: Atlantis covers Pull request plans, LogRhythm SIEM covers AI-driven analytics.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Atlantis and LogRhythm SIEM actually diverge.

Attributes where Atlantis and LogRhythm SIEM differ
AttributeAtlantisLogRhythm SIEM
Starting priceFreeOn request
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, Api
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2003

Identical on both: 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 Atlantis

  • Pull request plans
  • Comment driven apply
  • Workspace locking
  • Policy checking
  • Multi-platform webhooks
  • Custom workflows

Only in LogRhythm SIEM

  • AI-driven analytics
  • UEBA
  • NDR integration
  • SOAR automation
  • Threat lifecycle management
  • Case management
  • Compliance reporting
  • Embedded playbooks

What people use each for

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

Atlantis

  • Making Terraform review meaningful by putting the actual plan output in front of the approvernot LogRhythm SIEM
  • Removing local applies and the credential sprawl that comes with every engineer holding production keysnot LogRhythm SIEM
  • Getting pull request driven infrastructure without paying a per-user subscription for a hosted platformnot LogRhythm SIEM
  • Enforcing Conftest policies as a blocking check before an apply can runnot LogRhythm SIEM

LogRhythm SIEM

  • Security information and event managementnot Atlantis
  • Threat detection and incident responsenot Atlantis
  • Compliance monitoring and reportingnot Atlantis
  • User and entity behavior analyticsnot Atlantis

Where each one falls short

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

Atlantis

  • There is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.
  • The security surface is inherently sharp, because it is an internet-reachable webhook endpoint that executes applies with privileged credentials, gated by pull request comment authorisation that is coarse next to a real policy engine.
  • It is stateful, holding a working directory and lock database on local disk, so high availability and horizontal scaling are awkward and you own upgrades, webhook plumbing, secret rotation and the host itself.
  • It lacks the features that distinguish the commercial alternatives, with no native drift detection, no cost estimation, no managed state interface and no policy engine beyond the Conftest integration.
  • Terragrunt and monorepo layouts are not first-class, requiring hand-written custom workflows and repository configuration that becomes a growing maintenance burden as the number of repositories increases.

LogRhythm SIEM

  • No pricing published; sales contact required
  • No public information on licensing model or per-unit costs

Pricing, plan by plan

Atlantis

Free
  • AtlantisFree
    • Apache-2.0, no usage limits and no seat count
    • No commercial edition and no paid support tier
    • Community support through GitHub and the CNCF Slack channel

LogRhythm SIEM

On request
  • LogRhythm SIEMFree
    • Threat detection
    • Log management
    • Compliance
  • LogRhythm AxonFree
    • Cloud-native SIEM
    • Self-service deployment
    • Elastic scaling
  • Managed Detection & ResponseFree
    • 24/7 monitoring
    • Expert analysts
    • Threat hunting

Which should you pick?

Choose Atlantis if

  • You need pull request plans.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want comment driven apply.
Atlantis review

Choose LogRhythm SIEM if

  • You need ai-driven analytics.
  • You work on Web, Api.
  • You also want ueba.
LogRhythm SIEM review

Questions people ask

Is Atlantis or LogRhythm SIEM better?
Neither clearly leads. Atlantis starts at Free and LogRhythm SIEM at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Atlantis or LogRhythm SIEM?
Atlantis has a free tier; the other does not. Paid plans start at Free for Atlantis and On request for LogRhythm SIEM.
Does Atlantis or LogRhythm SIEM run on more platforms?
Atlantis runs on Linux, Docker, Kubernetes, Self-hosted. LogRhythm SIEM runs on Web, Api.
Can I use Atlantis for free?
Yes. Atlantis has a free tier, so you can try it without paying. LogRhythm SIEM starts at On request.
What is Atlantis best used for?
Atlantis is most often used for making terraform review meaningful by putting the actual plan output in front of the approver, removing local applies and the credential sprawl that comes with every engineer holding production keys, getting pull request driven infrastructure without paying a per-user subscription for a hosted platform, enforcing conftest policies as a blocking check before an apply can run. Of those, making terraform review meaningful by putting the actual plan output in front of the approver and removing local applies and the credential sprawl that comes with every engineer holding production keys are not what LogRhythm SIEM is typically brought in for.
What can Atlantis do that LogRhythm SIEM cannot?
Atlantis covers Pull request plans, Comment driven apply, Workspace locking, Policy checking. LogRhythm SIEM covers AI-driven analytics, UEBA, NDR integration, SOAR automation.

Answered from the vendors’ own pages

Atlantis: Is there a company behind Atlantis?

No. It runs as a series of LF Projects under the Linux Foundation and is maintained by volunteers. There is no vendor to buy support from and no service level agreement.

LogRhythm SIEM: How does Exabeam (formerly LogRhythm SIEM) handle pricing?

Exabeam does not publish pricing on its website. To obtain pricing information, request a demo through the website or contact Exabeam's sales team directly for a personalized quote based on your deployment size and requirements.

Source
Atlantis: Is it a CNCF project?

No. It uses a channel in the CNCF Slack, which is often misread as membership, but the project sits under LF Projects rather than the CNCF.

LogRhythm SIEM: Is there a free trial or freemium version of Exabeam?

Exabeam does not advertise a free trial or freemium tier on its homepage. Interested buyers must contact the sales team to discuss trial availability and pricing options.

Source
Atlantis: Does it work with OpenTofu?

Yes, there is a dedicated integration guide alongside Terraform, and it also has configuration for working with hosted Terraform backends.

Atlantis: What does it not do that a paid platform does?

Drift detection, cost estimation, a managed state and run interface, and a real policy engine. Atlantis does pull request plan and apply well and stops there.

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