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CAD · head to head

OpenSCAD vs Ray

OpenSCAD logo

OpenSCAD

CAD

The programmers solid 3D CAD modeler

From
Free
Rated
-
Full reviewWebsite
Ray logo

Ray

Machine Learning

Scale AI and Python applications

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: OpenSCAD script-based workflow, not interactive design interface; Ray windows support is beta and multi node Ray clusters are untested on Windows
  • They diverge on capability: OpenSCAD covers Script-based modeling, Ray covers Distributed computing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which OpenSCAD and Ray actually diverge.

Attributes where OpenSCAD and Ray differ
AttributeOpenSCADRay
Pricing modelfreefreemium
PlatformsWindows, macOS, Linux, WebAssemblyLinux, Mac, Windows
CategoryCADMachine Learning
Founded20092019

Identical on both: starting price (Free), free tier (Yes), 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 OpenSCAD

  • Script-based modeling
  • CSG operations
  • 2D to 3D extrusion
  • Parameterization
  • STL export
  • Preview
  • 3D printers
  • Slicers

Only in Ray

  • Distributed computing
  • Ray Train
  • Ray Tune
  • RLlib
  • Ray Serve
  • PyTorch
  • TensorFlow
  • Hugging Face

Both cover

  • Windows support
  • Linux support

What people use each for

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

OpenSCAD

  • Parametric 3D design for manufacturing and 3D printingnot Ray
  • Technical design with scripted control over geometrynot Ray
  • Procedural model generationnot Ray

Ray

  • Distributed AI model training and servingnot OpenSCAD
  • Large-scale data processingnot OpenSCAD
  • Reinforcement learning workloadsnot OpenSCAD
  • ML inference servingnot OpenSCAD

Where each one falls short

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

OpenSCAD

  • Script-based workflow, not interactive design interface
  • Limited to constructive solid geometry and 2D extrusion modelling
  • Not suitable for artistic 3D modelling or computer animation
  • Complex build dependencies (Qt, CGAL, Boost)

Ray

  • Windows support is beta and multi node Ray clusters are untested on Windows
  • Windows lacks copy on write forking, which raises memory requirements, and Ray code assumes UNIX filenames
  • Multi node clusters are untested on Apple Silicon Macs
  • The Java API is experimental and community supported only, and requires matching Java and Python versions
  • Python 3.13 support is beta

Pricing, plan by plan

OpenSCAD

Free

No published plan breakdown. See the OpenSCAD review.

Ray

Free
  • Open SourceFree
    • Full Ray framework
    • All libraries
    • Community support
  • Anyscale PlatformFree
    • Managed infrastructure
    • Enterprise support
    • SLAs

Which should you pick?

Choose OpenSCAD if

  • You need script-based modeling.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, WebAssembly.
  • You also want csg operations.
OpenSCAD review

Choose Ray if

  • You need distributed computing.
  • You want to start without paying.
  • You work on Linux, Mac, Windows.
  • You also want ray train.
Ray review

Questions people ask

Is OpenSCAD or Ray better?
Neither clearly leads. OpenSCAD starts at Free and Ray at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OpenSCAD or Ray?
OpenSCAD starts at Free and Ray at Free.
Does OpenSCAD or Ray run on more platforms?
OpenSCAD runs on Windows, macOS, Linux, WebAssembly. Ray runs on Linux, Mac, Windows.
Can I use OpenSCAD for free?
Both have a free tier, so you can try either at no cost before committing.
What is OpenSCAD best used for?
OpenSCAD is most often used for parametric 3d design for manufacturing and 3d printing, technical design with scripted control over geometry, procedural model generation. Of those, parametric 3d design for manufacturing and 3d printing and technical design with scripted control over geometry are not what Ray is typically brought in for.
What can OpenSCAD do that Ray cannot?
OpenSCAD covers Script-based modeling, CSG operations, 2D to 3D extrusion, Parameterization. Ray covers Distributed computing, Ray Train, Ray Tune, RLlib. Both handle Windows support, Linux support.

Answered from the vendors’ own pages

OpenSCAD: What is the cost of OpenSCAD?

OpenSCAD is free software with no licensing fees, subscriptions, or costs of any kind. The software is available as open-source with no restrictions on commercial or non-commercial use.

Source
Ray: Is Ray free?

Yes. Ray is free and open source software with over 34,800 GitHub stars and 1,000+ contributors. Users can download and use the Ray framework at no cost.

Source
Ray: Is there a paid option for Ray?

Yes. Anyscale, the managed platform built by Ray's creators, offers paid tiers with enterprise features like governance and advanced tooling. Specific Anyscale pricing details are not listed on the Ray website.

Source
Ray: Can I try Ray with credits?

Yes. New users can try Ray with $100 credit on Anyscale's managed platform to explore the service.

Source
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