Pulumi
Spacelift
| Feature | Pulumi | Spacelift |
|---|---|---|
| Pricing | Free / from $50/mo | Free / from $35/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.4 / 5 |
| Best For | developers, platform-engineers, polyglot-teams, cloud-architects | platform-teams, devops-engineers, infrastructure-teams, enterprises |
| Founded | 2017 | 2020 |
| Programming Languages | ✓ | ✗ |
| Multi Cloud | ✓ | ✗ |
| State Management | ✓ | ✗ |
| Policy As Code | ✓ | ✗ |
| Secrets Management | ✓ | ✗ |
| Pulumi Ai | ✓ | ✗ |
| Drift Detection | ✓ | ✓ |
| Iac Orchestration | ✗ | ✓ |
| Policy Engine | ✗ | ✓ |
| Modules Registry | ✗ | ✓ |
| Vcs Integration | ✗ | ✓ |
| Approval Workflows | ✗ | ✓ |
✓ Pulumi Pros
- Use real programming languages instead of DSLs
- Strong typing and IDE support for infrastructure code
- Multi-cloud support with consistent API
- Pulumi AI generates infrastructure code from prompts
✗ Pulumi Cons
- Smaller community than Terraform
- State management requires Pulumi Cloud or self-hosting
- Less third-party provider coverage than Terraform
✓ Spacelift Pros
- Multi-IaC support
- Excellent policy engine
- Good drift detection
- Strong collaboration tools
✗ Spacelift Cons
- Premium pricing
- Newer platform less proven
- Learning curve for policies
The Verdict
Pulumi is built for developers and platform engineers, with a focus on programming-languages and multi-cloud. Spacelift targets platform teams and devops engineers and leads with iac-orchestration and policy-engine.
On pricing, Spacelift is the clear winner for budget-conscious users — starting at $35/mo compared to $50/mo for Pulumi. That $15/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Pulumi offers broader built-in capabilities (7 features vs 6), while Spacelift takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.