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Cloud · head to head

Koyeb vs Nix

Koyeb logo

Koyeb

Cloud

High-performance serverless infrastructure for APIs, inference, and databases

From
$29/month
Free plan
No
Full reviewWebsite
Nix logo

Nix

Developer Tools

Purely functional package manager and the NixOS distribution built on it, for byte-reproducible environments

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Nix has a free tier, so it costs nothing to try first.
  • Each has a real cost: Koyeb pricing starts at $29/month with additional compute costs; Nix the Nix language is lazy, dynamically typed and poorly documented, and its error messages frequently point at the wrong expression, so debugging a failing build is a skill that takes months rather than days to acquire.
  • They diverge on capability: Koyeb covers Serverless containers, Nix covers Content-addressed store.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Koyeb and Nix actually diverge.

Attributes where Koyeb and Nix differ
AttributeKoyebNix
Starting price$29/monthFree
Pricing modelUnknownOpen source, no licence fee
Free tierNoYes
PlatformsWeb, CLI, APILinux, macOS, Windows (via WSL)
CategoryCloudDeveloper Tools

Identical on both: user rating (Not yet rated).

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 Koyeb

  • Serverless containers
  • GPU support
  • Global distribution
  • Multi-protocol support
  • Serverless Postgres
  • Zero-downtime deployments

Only in Nix

  • Content-addressed store
  • Declarative system configuration
  • Atomic upgrades and rollback
  • nix develop shells
  • Flakes
  • Nixpkgs
  • Binary caches
  • Home Manager

What people use each for

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

Koyeb

  • Deploying AI inference models globally with GPU accelerationnot Nix
  • Building SaaS platforms with automatic scalingnot Nix
  • Running distributed AI agents and background workersnot Nix

Nix

  • A team that wants every developer and CI runner to use byte-identical toolchains without shipping a container for local worknot Koyeb
  • Reproducing a research computation or a build years later from a pinned commit rather than a written recipenot Koyeb
  • Managing a fleet of Linux servers declaratively with atomic rollback if a deployment breaks a servicenot Koyeb
  • Building minimal container images from precise dependency closures instead of a base image plus a package managernot Koyeb

Where each one falls short

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

Koyeb

  • Pricing starts at $29/month with additional compute costs
  • GPU compute is expensive at $0.75-$2.50 per hour
  • Limited customization for infrastructure configuration

Nix

  • The Nix language is lazy, dynamically typed and poorly documented, and its error messages frequently point at the wrong expression, so debugging a failing build is a skill that takes months rather than days to acquire.
  • Flakes are the way essentially everyone uses Nix in 2026 and are still formally an experimental feature behind a flag, meaning tutorials, official documentation and real practice disagree with each other constantly.
  • Anything that expects a conventional Linux filesystem layout breaks: prebuilt binaries, language package managers that download their own toolchains, and proprietary vendor installers all need patching or an FHS-compatible wrapper.
  • Project governance has been publicly fractious, producing the Lix fork and the separately funded Determinate Systems distribution, so a new adopter now has to choose which Nix before they can start.
  • The /nix/store grows without bound until you garbage collect, and on a developer laptop with several pinned nixpkgs revisions it routinely reaches tens of gigabytes.

Pricing, plan by plan

Koyeb

$29/month
  • Pro$29/month
    • $10 included compute
    • 10 users
    • 100 services
  • Scale$299/month
    • $100 included compute
    • 50 users
    • 1,000 services
  • Enterprise$1000/month
    • Unlimited users
    • Custom resources
    • SSO/RBAC

Nix

Free
  • Nix and NixOSFree
    • LGPL-2.1 licensed, no commercial tier
    • Public binary cache at cache.nixos.org
    • Community support via forum, Matrix and GitHub

Which should you pick?

Choose Koyeb if

  • You need serverless containers.
  • You work on Web, CLI, API.
  • You also want gpu support.
Koyeb review

Choose Nix if

  • You need content-addressed store.
  • You want to start without paying.
  • You work on Linux, macOS, Windows (via WSL).
  • You also want declarative system configuration.
Nix review

Questions people ask

Is Koyeb or Nix better?
Neither clearly leads. Koyeb starts at $29/month and Nix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Koyeb or Nix?
Nix has a free tier; the other does not. Paid plans start at $29/month for Koyeb and Free for Nix.
Does Koyeb or Nix run on more platforms?
Koyeb runs on Web, CLI, API. Nix runs on Linux, macOS, Windows (via WSL).
Can I use Nix for free?
Yes. Nix has a free tier, so you can try it without paying. Koyeb starts at $29/month.
What is Koyeb best used for?
Koyeb is most often used for deploying ai inference models globally with gpu acceleration, building saas platforms with automatic scaling, running distributed ai agents and background workers. Of those, deploying ai inference models globally with gpu acceleration and building saas platforms with automatic scaling are not what Nix is typically brought in for.
What can Koyeb do that Nix cannot?
Koyeb covers Serverless containers, GPU support, Global distribution, Multi-protocol support. Nix covers Content-addressed store, Declarative system configuration, Atomic upgrades and rollback, nix develop shells.

Answered from the vendors’ own pages

Koyeb: What are Koyeb's subscription plans?

Pro plan is $29/month with $10 included compute, Scale plan is $299/month with $100 included compute and 99.9% SLA, and Enterprise starts at $1,000/month with unlimited users and 99.99% SLA.

Source
Nix: Do I have to run NixOS to use Nix?

No. The package manager runs fine on any Linux distribution and on macOS, and most teams start there with development shells rather than converting their servers.

Koyeb: How much does GPU compute cost?

GPU pricing is per-second: RTX-A6000 costs $0.75/hour, A100 costs $1.60/hour, H100 costs $2.50/hour, and 8x H100 costs $20.00/hour.

Source
Nix: Is Nix a replacement for Docker?

It solves an adjacent problem. Nix reproduces the contents of an environment exactly; Docker distributes an image. Many teams use Nix to build the image.

Koyeb: What database options are available?

Koyeb offers serverless Postgres starting at free (0.25 vCPU, 1GB RAM) up to 3XL at $1.28/hour with 8 vCPU and 32GB RAM. Storage costs $0.50/month per GB.

Source
Nix: Are flakes safe to use in production?

They are used in production widely and are stable in practice, but they remain officially experimental, which means the interface can still change and documentation is split.

Nix: What is Lix and should I care?

Lix is a community fork of the Nix implementation created after governance disputes. It is largely compatible; the practical impact is that you must decide which implementation your team standardises on.

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