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Software · head to head

FastAPI vs Pulumi

F

FastAPI

Software

A modern, fast, high-performance web framework for building APIs with Python

From
Free
Rated
-
Full reviewWebsite
Pulumi logo

Pulumi

Software

Modern infrastructure as code using programming languages

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: FastAPI licensed under the MIT License per fastapi.tiangolo.com; as open source software it has no paid tier or vendor price to compare; Pulumi the free Individual plan allows one user and one concurrent stack update

Where they differ

Only the attributes on which FastAPI and Pulumi actually diverge.

Attributes where FastAPI and Pulumi differ
AttributeFastAPIPulumi
Pricing modelopen-sourcefreemium
PlatformsWebLinux, Windows, Mac, Api
FoundedUnknown2017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

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 FastAPI

Nothing recorded that Pulumi does not also cover.

Only in Pulumi

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

What people use each for

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

FastAPI

No use cases recorded yet. See the FastAPI review.

Pulumi

  • Defining cloud infrastructure as code in TypeScript, Python, Go, C# or Java rather than a DSLnot FastAPI
  • Managing Pulumi state and secrets in a hosted backend instead of self-managed storagenot FastAPI
  • Policy, drift detection and deployment workflows for platform engineering teamsnot FastAPI

Where each one falls short

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

FastAPI

  • Licensed under the MIT License per fastapi.tiangolo.com; as open source software it has no paid tier or vendor price to compare
  • FastAPI depends entirely on Starlette for its web layer and Pydantic for validation, per its own documentation, so it is not a standalone framework and inherits both dependencies' constraints

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

Pricing, plan by plan

FastAPI

Free

No published plan breakdown. See the FastAPI review.

Pulumi

Free
  • Pulumi CommunityFree
    • Open source
    • Community support
    • Self-hosted
  • Pulumi Cloud$10/month
    • Hosted backend
    • Team collaboration
    • RBAC

Which should you pick?

Choose FastAPI if

  • You want to start without paying.
FastAPI review

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

Questions people ask

Is FastAPI or Pulumi better?
Neither clearly leads. FastAPI starts at Free and Pulumi at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FastAPI or Pulumi?
FastAPI starts at Free and Pulumi at Free.
Does FastAPI or Pulumi run on more platforms?
FastAPI runs on Web. Pulumi runs on Linux, Windows, Mac, Api.
Can I use FastAPI for free?
Both have a free tier, so you can try either at no cost before committing.
What can FastAPI do that Pulumi cannot?
Pulumi covers Multi-language support, Multi-cloud, State management, Secrets management.
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Related pages

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