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It's a split decision.
Pulumi is an IaC platform with support for TypeScript, Python, Go, .NET, Java, YAML and HCL, plus managed plans and an Enterprise self-hosting option. Terraform centers on HCL configuration and CLI workflows, with HCP Terraform for hosted team collaboration. Choose Pulumi for language choice, reusable components and its listed governance features. Choose Terraform for HCL-based workflows and per-resource HCP pricing. Compare actual resource counts, concurrency needs and state migration before switching.
01Side by side
| Pulumi | Terraform | |
|---|---|---|
| Pricing model | $40 Essentials or $400 Pro, plus usage-based charges | Per-managed-resource hourly rates on paid HCP tiers |
| Free tier | One user; 500 workflow minutes; 25 secrets; 10K API calls | Unlimited users; 500 resources; one concurrent run; $500 HCP credit |
| Open source and licence | Open source; licence not stated | Open-source status and licence not published |
| Self-hosting | Available on Enterprise | Self-hosting option not published |
| API and SDKs | Infrastructure code in six languages, plus HCL | HCL configuration language and CLI workflows |
| CLI and docs | Installable CLI; guides, API references and Registry | Terraform CLI; configuration, provider and HCP documentation |
| Integrations | Vault, cloud secret stores, OIDC, npm, PyPI, NuGet | AWS, Azure, Google Cloud, Oracle Cloud, Docker, GitHub Actions |
| Limits and scaling | Plan resource caps; extra usage draws on Pulumi Credits | 500-resource free cap; paid tiers bill by managed resource |
Pulumi Choose Pulumi if
- Choose Pulumi if your team wants infrastructure code in general-purpose languages.
- Choose Pulumi if reusable components in npm, PyPI or NuGet suit your codebase.
- Choose Pulumi if you need its listed policy and governance features.
Terraform Choose Terraform if
- Choose Terraform if your team standardizes on HCL configuration.
- Choose Terraform if per-managed-resource HCP billing fits your cost model.
- Choose Terraform if HCP Terraform's hosted team workflows fit your stack.
02Pricing at real usage
Pulumi Free costs $0 and includes one user, up to 500 workflow minutes, 25 secrets and 10K API calls per month. Essentials is $40/month; Pro is $400/month. Their resource caps are 500 and 2,000, respectively, and additional usage draws on Pulumi Credits at $1 per credit. Essentials and Pro also charge for managed resources, secrets, workflow minutes and discovered resources.
Terraform Free costs $0, covers up to 500 managed resources and one concurrent run, and includes a $500 HCP credit. Paid tiers bill by managed resource per hour: Essentials lists $0.00013, Standard $0.00064 and Premium $0.00135. The pricing page also lists monthly per-resource equivalents of $0.10, $0.47 and $0.99. Terraform's free tier requires an upgrade above 500 resources. The costs are not directly comparable: Pulumi combines plan fees and usage charges, while Terraform's listed paid rates scale with managed resources.
03API, SDKs and integration
Pulumi lets teams define infrastructure in TypeScript, Python, Go, .NET, Java, YAML or HCL. Its documentation includes guides and API references, and its CLI is used to install Pulumi and deploy projects. Teams can make reusable components and share them through package managers such as npm, PyPI and NuGet. The platform also lists connections to Vault, AWS Secrets Manager, Azure Key Vault and OIDC, alongside cloud providers and coding agents.
Terraform uses its configuration language, HCL, to describe infrastructure; its CLI supports infrastructure workflows. The documentation covers the configuration language, CLI, HCP Terraform, providers and policy, and the Terraform Registry provides providers and other resources. HCP Terraform adds hosted team collaboration. Terraform's tutorials name AWS, Azure, Google Cloud Platform, Oracle Cloud and Docker, with GitHub Actions and Vercel among the listed use cases. Pulumi exposes API references and multiple language options; Terraform centers its workflow on HCL and the CLI.
04Open source, self-hosting and lock-in
Pulumi is identified as open source, but its license should be checked before adoption. Its Enterprise plan lists self-hosting as available. Terraform's open-source status and license are not published on its product page, and its product materials describe HCP Terraform and Terraform Enterprise rather than a self-hosting option.
Neither vendor publishes a data-export path on its product pages. Before committing, ask how to export state, configuration, audit records and secrets, and test the migration of a representative stack. Pulumi's HCL support, including native Terraform and HCL support announced on its homepage, may help teams working across both formats; it does not by itself establish that state or workflows transfer directly. Terraform teams should likewise verify provider and state handling for any target tool. Managed platform features can add migration work beyond infrastructure definitions.
Questions people ask
Are people moving away from Terraform?
We can't quantify whether teams are moving away from Terraform. Its product page describes HCL, CLI workflows, HCP Terraform and Terraform Enterprise; Pulumi supports HCL and advertises native Terraform and HCL support. Teams considering a move should verify provider coverage, state handling and migration steps before changing tools.
What alternatives are there to Terraform?
Pulumi is one alternative in this comparison. It supports infrastructure definitions in TypeScript, Python, Go, .NET, Java, YAML and HCL, while Terraform centers on HCL. Compare language fit, hosted features, resource billing and the work required to move existing state before choosing.
Is Terraform for AWS only?
No. Terraform is described as an IaC tool for infrastructure broadly, and its tutorials list AWS, Azure, Google Cloud Platform, Oracle Cloud and Docker. Its stated scope includes compute, storage, networking, DNS entries and SaaS features.
Is Ansible better than Terraform?
That depends on the job, and the product pages don't establish a direct comparison. Terraform is described as a tool for building, changing and versioning infrastructure through HCL and CLI workflows. Compare the exact tasks, integrations and operating model your team needs before deciding.