Softwr

Developer Tools · head to head

Atlantis vs Tanium

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
Tanium logo

Tanium

Cybersecurity

Unified platform for real-time endpoint management, security and compliance

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.; Tanium no public pricing is published, requiring a sales engagement to get a quote.
  • They diverge on capability: Atlantis covers Pull request plans, Tanium covers Real-time endpoint queries.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Atlantis and Tanium actually diverge.

Attributes where Atlantis and Tanium differ
AttributeAtlantisTanium
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Self-hostedweb, windows, mac, linux, api
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2007

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 Tanium

  • Real-time endpoint queries
  • Single lightweight agent
  • Linear Chain Architecture
  • Vulnerability management
  • AI-driven remediation
  • Threat hunting

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 Tanium
  • Removing local applies and the credential sprawl that comes with every engineer holding production keysnot Tanium
  • Getting pull request driven infrastructure without paying a per-user subscription for a hosted platformnot Tanium
  • Enforcing Conftest policies as a blocking check before an apply can runnot Tanium

Tanium

  • Getting real-time visibility into all endpoints across a large enterprisenot Atlantis
  • Patching operating systems and software at scale quicklynot Atlantis
  • Continuous vulnerability scanning and risk scoringnot Atlantis
  • Hunting for and remediating active threats across a fleetnot 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.

Tanium

  • No public pricing is published, requiring a sales engagement to get a quote.
  • Aimed at large enterprises, making it impractical for small teams or budgets.
  • Deployment and configuration of the agent-based architecture requires significant IT expertise.
  • Full value depends on adopting multiple Tanium modules, which can increase cost and complexity versus point solutions.

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

Tanium

On request
  • Enterprise$undefined/mo
    • Custom endpoint volume pricing
    • Full platform modules
    • Dedicated support

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 Tanium if

  • You need real-time endpoint queries.
  • You work on web, windows, mac, linux, api.
  • You also want single lightweight agent.
Tanium review

Questions people ask

Is Atlantis or Tanium better?
Neither clearly leads. Atlantis starts at Free and Tanium at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Atlantis or Tanium?
Atlantis has a free tier; the other does not. Paid plans start at Free for Atlantis and On request for Tanium.
Does Atlantis or Tanium run on more platforms?
Atlantis runs on Linux, Docker, Kubernetes, Self-hosted. Tanium runs on web, windows, mac, linux, api.
Can I use Atlantis for free?
Yes. Atlantis has a free tier, so you can try it without paying. Tanium 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 Tanium is typically brought in for.
What can Atlantis do that Tanium cannot?
Atlantis covers Pull request plans, Comment driven apply, Workspace locking, Policy checking. Tanium covers Real-time endpoint queries, Single lightweight agent, Linear Chain Architecture, Vulnerability management.

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.

Tanium: What is Tanium's pricing model?

Tanium does not publish pricing on its website. Interested customers must contact the company or request a demo to discuss pricing and capabilities.

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.

Tanium: Is there a Tanium free trial?

Tanium does not clearly advertise a free trial on its main website, directing customers to schedule a demo or contact sales for more information.

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.

Share

Related pages

More on Atlantis

More on Tanium

Keep looking

Other head to heads