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Pulumi vs Upstash

Pulumi logo

Pulumi

Software

Modern infrastructure as code using programming languages

From
Free
Rated
-
Full reviewWebsite
Upstash logo

Upstash

Software

Serverless data for modern developers

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; Upstash hTTP-based REST API only, no TCP connections means higher latency than self-hosted or connection-pooled Redis
  • They diverge on capability: Pulumi covers Multi-language support, Upstash covers Serverless Redis.

Where they differ

Only the attributes on which Pulumi and Upstash actually diverge.

Attributes where Pulumi and Upstash differ
AttributePulumiUpstash
Pricing modelfreemiumUnknown
PlatformsLinux, Windows, Mac, ApiREST API, Node.js, Python, Go, Rust, Vercel Edge, Cloudflare Workers, AWS Lambda
Founded20172020

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 Pulumi

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

Only in Upstash

  • Serverless Redis
  • Serverless Kafka
  • QStash
  • Global Replication
  • REST API
  • Edge Functions Support
  • Rate Limiting
  • Caching

Both cover

  • Cloud deployment

What people use each for

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

Pulumi

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

Upstash

  • Cachingnot Pulumi
  • Session storagenot Pulumi
  • Real-time messagingnot Pulumi
  • Rate limitingnot Pulumi
  • Serverless backendsnot 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

Upstash

  • HTTP-based REST API only, no TCP connections means higher latency than self-hosted or connection-pooled Redis
  • Rate limiting occurs when traffic exceeds configured budget cap or request limits
  • Kafka service discontinued in March 2025, requiring migration to Upstash Workflow or alternatives
  • Limited Redis feature support compared to self-hosted Redis or Redis Cloud
  • High-request-volume workloads can accumulate significant costs due to per-request pricing model

Pricing, plan by plan

Pulumi

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

Upstash

Free
  • FreeFree
    • 256 MB data
    • 500K commands per month
    • 10 GB bandwidth
  • Pay-as-you-go$0.2/per 100K commands
    • Per-request billing
    • Storage at $0.25/GB
    • Unlimited commands
  • Fixed Plan$10/month
    • 250 MB Redis
    • Predictable pricing
    • Global replication available at higher tiers

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 Upstash if

  • You need serverless redis.
  • You want to start without paying.
  • You work on REST API, Node.js, Python, Go, Rust, Vercel Edge, Cloudflare Workers, AWS Lambda.
  • You also want serverless kafka.
Upstash review

Questions people ask

Is Pulumi or Upstash better?
Neither clearly leads. Pulumi starts at Free and Upstash at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Pulumi or Upstash?
Pulumi starts at Free and Upstash at Free.
Does Pulumi or Upstash run on more platforms?
Pulumi runs on Linux, Windows, Mac, Api. Upstash runs on REST API, Node.js, Python, Go, Rust, Vercel Edge, Cloudflare Workers, AWS Lambda.
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 defining cloud infrastructure as code in typescript, python, go, c# or java rather than a dsl, managing pulumi state and secrets in a hosted backend instead of self-managed storage, policy, drift detection and deployment workflows for platform engineering teams. Of those, defining cloud infrastructure as code in typescript, python, go, c# or java rather than a dsl and managing pulumi state and secrets in a hosted backend instead of self-managed storage are not what Upstash is typically brought in for.
What can Pulumi do that Upstash cannot?
Pulumi covers Multi-language support, Multi-cloud, State management, Secrets management. Upstash covers Serverless Redis, Serverless Kafka, QStash, Global Replication. Both handle Cloud deployment.

Answered from the vendors’ own pages

Upstash: Does Upstash have a free tier?

Yes. The free tier provides 256 MB of data and 500,000 commands per month with 10 GB of bandwidth in a single region, no credit card required.

Source
Upstash: How does Upstash work with edge platforms like Vercel and Cloudflare Workers?

Upstash uses a REST API instead of TCP connections, enabling it to work from Vercel Edge, Cloudflare Workers, and AWS Lambda without persistent connections or connection pooling.

Source
Upstash: What programming languages are supported?

Upstash provides native SDKs for Python, Node.js, Go, and Rust. Java, C#, and PHP developers can use the REST API or community libraries.

Source
Upstash: Is Upstash Kafka still available?

No. Upstash Kafka was deprecated on September 11, 2024 and fully discontinued on March 11, 2025. Upstash Workflow is now recommended for durable serverless messaging and task queuing.

Source
Upstash: How is Upstash pricing structured?

Upstash uses per-request pricing at $0.20 per 100K commands for Redis, $0.25/GB for storage, and $0.40 per 100K requests for Vector database. Idle applications cost nothing.

Source
Upstash: Can Upstash be used with AWS Lambda?

Yes. Upstash works with AWS Lambda via its REST API, eliminating the need for connection pooling and making it ideal for stateless serverless functions.

Source
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