LineWise Design Lab

Benchmarking AI CAD for Engineering Reality

Other benchmarks ask if AI-generated CAD looks right. We ask if it can be manufactured, assembled, and edited.

Why Design Lab exists

Looking right isn’t being right

AI can generate CAD that renders beautifully but can’t be machined, assembled, or changed. Today’s benchmarks reward the shape. Industry asks:

Can it be produced? Can an engineer keep working on it?

Design Lab measures exactly that — on real-world CAD data, scored by professional CAD engineers.

What we evaluate

Six tasks from real engineering workflows

01

Text-to-CAD

Written spec → parametric model.

02

Drawing-to-CAD

2D engineering drawing → 3D model.

03

CAD Edit

Change only what was asked. Nothing else.

04

Assembly Design

Parts that fit, mate, and clear.

05

Design Repair

Defective model in, production-ready out.

06

CAD Reasoning

Spot and explain design issues.

How we score

Automated floor, expert ceiling

Automated checks set the floor.

  • File validity
  • Geometry & topology
  • Constraints & interference
  • Edit locality

Expert judgment sets the ceiling.

  • Design intent
  • Manufacturability
  • Assemblability
  • Editability

Scored blind. Scored pairwise. Scored by people who ship real parts.

Anti-contamination by design

Built not to be gamed

Public

Dev set

A small open sample for validating pipelines.

Private

Leaderboard set

Never released. Powers the rankings.

Hidden

Expert set

Used for audits. Rotated regularly.

Models can’t train on the test.

Get involved

Join Design Lab

Building an AI model?

Get blind-scored on real engineering tasks.

Evaluate your model

A CAD professional?

Review AI designs on our expert panel. Paid, remote, flexible.

Join the expert panel

Have CAD data?

License design data, get early access to the state of the art.

Partner with us

Our commitments

Your designs stay yours

Opt-In Only

You choose exactly which designs to contribute.

IP Protected

Anonymized. No training, no redistribution.

Evaluation Only

Benchmark sets are never published.

AI-assisted design is coming. Let’s make it engineering-ready.

Get in touch