Drawings and CAD3DImage + text

CADReasoner

It writes CadQuery code from images and a point cloud, then edits its own output over several rounds, comparing the resulting shape with the original. This is a draft model: an engineer checks and signs off the document.

Developer
FusionBrain Lab, Lomonosov Moscow State University and Innopolis University, Russia
First release
Feb 2026
Latest release
Aug 2026
Sizes
2.2B
License
Commercial use allowedApache 2.0 for the main weights, MIT for the CADENA model
Running
On your own serverAlso runs without a GPU
Industries
Manufacturing and logistics, Software development, Science and research
Deploy on your server Hugging Face GitHub

What it does

  • Recovering a parametric model from photos and a scan of a part
  • Step-by-step refinement of a draft CAD model
  • Digitising parts that have no drawings
  • Preparing a model for a design engineer to finish

Where it is used

Design officesManufacturing and reverse engineeringEquipment repairResearch

Hardware requirements

LaptopLaptop or regular PC, up to 8 GB of VRAM — smaller versions
fits
1 GPUOne GPU with 16–80 GB — mid-size versions
fits
ClusterServer with several GPUs — flagship versions
no versions

Versions

  1. CADReasoner-PC и CADReasoner-CM
  2. CADENA (версии SFT и RL)
  3. CADReasoner
  4. CADEvolve RL1

How to run it

On your own serverWeights are downloaded from Hugging Face and served with vLLM (load and API) or llama.cpp (modest hardware). The model then runs in a closed network with no per-request fees.Hugging Face
How much hardware you needCalculate the VRAM for the model size, context length and number of concurrent requests.Open the hardware calculator

I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems.

Frequently asked questions

Can CADReasoner be used in a commercial project?

Yes. License: Apache 2.0 for the main weights, MIT for the CADENA model. It allows commercial use, but it is still worth having a lawyer review the license before launch.

What hardware does CADReasoner need?

At minimum: Laptop or regular PC, up to 8 GB of VRAM — smaller versions. Some versions also run on an ordinary CPU, without a GPU. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does CADReasoner support Russian?

Language does not matter for this model: it does not work with text.

Where can I download CADReasoner and what does it cost?

The CADReasoner weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.

How I deploy it for clients

  1. SelectionI pick the model size for your task and hardware and test it on your examples.
  2. DeploymentI deploy it on your server or in a closed network and provide an API.
  3. Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
  4. IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.

Similar models

Drawings and CADCAD-RecodeUniversity of Luxembourg (SnT) and Artec3D · LuxembourgNon-commercial only

Turns a point cloud of a part into executable CadQuery Python code, that is, a parametric 3D model you can open and edit in CAD. The output is a draft: an engineer checks and signs off the document.

DetailsDrawings and CADcadrilleAIRI, Lomonosov Moscow State University and Innopolis University · RussiaNon-commercial only

A successor to CAD-Recode: it builds a CAD model as CadQuery code from three kinds of input at once - a point cloud, an image and a text description. It produces a draft; an engineer checks and signs off the document.

DetailsDrawings and CADZero-to-CADAutodesk Research · USACommercial use allowed

A model from Autodesk Research: from eight rendered views of a part it writes an executable CadQuery program. It was trained on synthetic data only. It produces a draft; an engineer checks and signs off the document.

Details

Source: huggingface.co/kulibinai/cadreasoner. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.