Pulumi
Tenable
| Feature | Pulumi | Tenable |
|---|---|---|
| Pricing | Free / from $50/mo | Free / from $3990/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.3 / 5 |
| Best For | developers, platform-engineers, polyglot-teams, cloud-architects | security-teams, compliance-officers, it-operations, vulnerability-managers |
| Founded | 2017 | 2002 |
| Programming Languages | ✓ | ✗ |
| Multi Cloud | ✓ | ✗ |
| State Management | ✓ | ✗ |
| Policy As Code | ✓ | ✗ |
| Secrets Management | ✓ | ✗ |
| Pulumi Ai | ✓ | ✗ |
| Drift Detection | ✓ | ✗ |
| Vulnerability Scanning | ✗ | ✓ |
| Asset Discovery | ✗ | ✓ |
| Risk Prioritization | ✗ | ✓ |
| Compliance Reporting | ✗ | ✓ |
| Web App Scanning | ✗ | ✓ |
| Cloud Security | ✗ | ✓ |
✓ 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
✓ Tenable Pros
- Comprehensive vulnerability coverage
- Excellent asset discovery
- Good risk prioritization
- Strong compliance reporting
✗ Tenable Cons
- Expensive for large environments
- Complex initial setup
- Scanning can impact performance
The Verdict
Pulumi is built for developers and platform engineers, with a focus on programming-languages and multi-cloud. Tenable targets security teams and compliance officers and leads with vulnerability-scanning and asset-discovery.
On pricing, Pulumi is the clear winner for budget-conscious users — starting at $50/mo compared to $3990/mo for Tenable. That $3940/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 Tenable 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.