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Cloud · head to head

Pulumi vs Spacelift

Pulumi logo

Pulumi

Cloud

Modern infrastructure as code using programming languages

From
Free
Rated
-
Full reviewWebsite
Spacelift logo

Spacelift

Developer Tools

Infrastructure-as-code orchestration for Terraform, OpenTofu, Pulumi and Kubernetes

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Pulumi the free Individual plan allows one user and one concurrent stack update; Spacelift users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
  • They diverge on capability: Pulumi covers Multi-language support, Spacelift covers Multi-tool orchestration.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Pulumi and Spacelift actually diverge.

Attributes where Pulumi and Spacelift differ
AttributePulumiSpacelift
Pricing modelsubscriptionBy private worker and tier, not by user
PlatformsLinux, Windows, Mac, ApiWeb, Self-hosted, Cloud
CategoryCloudDeveloper Tools
Founded2017Unknown

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 Pulumi

  • Multi-language support
  • Multi-cloud
  • State management
  • Secrets management
  • RBAC
  • Stacks
  • Automation API
  • Policy as Code

Only in Spacelift

  • Multi-tool orchestration
  • Policy as code
  • Private workers
  • Spaces
  • Blueprints
  • Drift detection

What people use each for

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

Pulumi

  • Infrastructure as codenot Spacelift
  • Cloud resource provisioningnot Spacelift
  • DevOps automationnot Spacelift
  • Multi-cloud managementnot Spacelift

Spacelift

  • Platform teams running infrastructure changes through approval gates rather than through application CInot Pulumi
  • Organisations standardising Terraform and OpenTofu across many teams with policy enforcementnot Pulumi
  • Estates needing private runners so cloud credentials never leave the networknot Pulumi
  • Teams wanting drift detection and reconciliation rather than plan-time checks alonenot Pulumi

Where each one falls short

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

Pulumi

  • The free Individual plan allows one user and one concurrent stack update
  • The Team plan is $40 per month base including 40 credits, and caps the organisation at 10 users
  • SAML/SSO, RBAC, audit logs and drift detection require the Enterprise plan at $400 per month base
  • The per-resource rate rises from $0.1825 per resource per month on Team to $0.365 on Enterprise, so upgrading raises the unit price as well as the base fee
  • Managed secrets are billed separately at $0.50 per secret per month on Team and $0.75 on Enterprise
  • Self-hosting, SCIM user sync, audit log export and 24x7 support are only in Business Critical, which is custom priced with no published rate
  • Team includes up to 500 resources and Enterprise up to 2,000, with everything beyond billed on demand as credits

Spacelift

  • Users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
  • There is no affordable paid entry point. The free tier stops at two users and the next tier is a five-figure commitment with nothing in between.
  • Three of the five tiers are quote-only, so a shortlist cannot be costed without entering a sales process with each vendor on it.
  • The self-hosted build lags the hosted one, has no public worker pool and lacks the Azure and Google Cloud integrations available in the SaaS product, with OIDC federation offered as the workaround.
  • Stacks, Rego policies, Blueprints, Spaces and Spacelift-managed state are proprietary constructs, so leaving means rebuilding the orchestration layer rather than pointing it at a different runner.

Pricing, plan by plan

Pulumi

Free
  • IndividualFree
    • 1 user
    • Unlimited projects/stacks
    • 500 workflow minutes monthly
  • Team$40/month
    • Up to 10 users
    • Secure collaboration
    • CI/CD integration
  • Enterprise$400/month
    • Unlimited users
    • SAML/SSO
    • RBAC
  • Business Critical$null/custom
    • Self-hosting
    • Advanced compliance
    • SCIM integration

Spacelift

Free
  • FreeFree
    • Two users
    • Public workers only
    • No private workers
  • Starter Plus$undefined/year
    • Unlimited users
    • Two public workers
    • One to two private workers
  • Business$undefined/year
    • Unlimited users
    • Three private workers
    • Quoted
  • Enterprise$undefined/year
    • Unlimited users
    • Five to thirty private workers
    • Self-hosted option

Which should you pick?

Choose Pulumi if

  • You need multi-language support.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want multi-cloud.
Pulumi review

Choose Spacelift if

  • You need multi-tool orchestration.
  • You want to start without paying.
  • You work on Web, Self-hosted, Cloud.
  • You also want policy as code.
Spacelift review

Questions people ask

Is Pulumi or Spacelift better?
Neither clearly leads. Pulumi starts at Free and Spacelift at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Pulumi or Spacelift?
Pulumi starts at Free and Spacelift at Free.
Does Pulumi or Spacelift run on more platforms?
Pulumi runs on Linux, Windows, Mac, Api. Spacelift runs on Web, Self-hosted, Cloud.
Can I use Pulumi for free?
Both have a free tier, so you can try either at no cost before committing.
What is Pulumi best used for?
Pulumi is most often used for infrastructure as code, cloud resource provisioning, devops automation, multi-cloud management. Of those, infrastructure as code and cloud resource provisioning are not what Spacelift is typically brought in for.
What can Pulumi do that Spacelift cannot?
Pulumi covers Multi-language support, Multi-cloud, State management, Secrets management. Spacelift covers Multi-tool orchestration, Policy as code, Private workers, Spaces.

Answered from the vendors’ own pages

Pulumi: How much does Pulumi cost?

Pulumi offers a free Individual tier forever, Team plan at $40/month with 40 credits, and Enterprise at $400/month with 400 credits. Credit usage varies by resource type and workflow needs.

Source
Spacelift: How is Spacelift priced?

By tier and by private worker count rather than per user. Users are unlimited on every paid plan. The published figure on the pricing page carries no period label, and the FAQ describes the tier as an annual subscription, so confirm the period in writing.

Pulumi: What is included in the Pulumi free tier?

The free Individual tier includes 1 user, unlimited projects/stacks, 500 workflow minutes monthly, and 5 million Neo tokens free.

Source
Spacelift: Does it support OpenTofu?

Yes, and Spacelift sponsors the OpenTofu project, which is a substantive hedge for anyone avoiding Terraform under the Business Source Licence.

Pulumi: How are Pulumi credits charged?

1 Pulumi Credit equals $1 USD. Credits are drawn from a shared pool. IaC resources cost $0.1825/month per resource on Team and $0.365 on Enterprise; ESC secrets cost $0.50-$0.75/month; workflow minutes cost $0.01 each.

Source
Spacelift: Is there a self-hosted version?

Yes, described as carrying Enterprise functionality, but it is priced on request and lags the hosted product on cloud integrations.

Pulumi: Does Pulumi offer volume discounts?

Yes, the Enterprise tier ($400/month) includes volume discounts and is designed for approximately 2,000 IaC resources.

Source
Spacelift: Why not just use the CI system we already have?

That is the real comparison. General purpose CI handles state, drift, approval gates and concurrency control for infrastructure poorly, and whether that is worth a five-figure floor depends on how much infrastructure change your organisation actually ships.

Spacelift: What happens to our pipelines if we leave?

They do not port. Rego policies, Blueprints, Spaces and managed state are Spacelift constructs and the orchestration has to be rebuilt elsewhere.

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