Harpoon
For AI labs

Real 3D experts to test and train your AI.

Whether your model makes 3D directly, or writes the code and answers behind it, it needs people who build 3D for a living to tell it what's right — and what's broken.

Two kinds of AI, same need

AI that makes 3D

Text-to-3D, image-to-3D, video and world models

  • ✓We score every output
  • ✓We compare outputs side by side
  • ✓We fix the broken ones

General-purpose AI

Chat assistants, coding models, agents

  • ✓We write realistic 3D tasks — Blender, three.js, game engines, CAD
  • ✓We run the 3D code your model writes and check what it actually builds
  • ✓We record experts using Blender and other 3D tools, step by step, so agents learn to use them
  • ✓We grade its answers and write the ideal ones

What goes wrong

Broken surfaces

Holes, cracked faces and parts floating in the air.

Messy topology

Triangle soup that can't be edited, animated or used in a game engine.

Rigs that don't move right

Bones in the wrong place, meshes that tear when they bend.

Code that doesn't build

Scripts that crash — or run fine and build the wrong thing.

What you get

A score for every output

Each model gets a clear quality score and a short written reason.

Side-by-side comparisons

Two outputs, one question: which is better? The kind of data you can train on.

Fixed models

Our artists repair the outputs that matter, so you get a clean version back.

Expert-written 3D tasks

Realistic tasks with ideal answers, written by working 3D artists — to test your model or train it.

Code that's actually run

We run the 3D code your model writes and check the result, not just the text.

Recorded expert sessions

Screen, every click and the artist's reasoning, step by step — so an agent learns how real 3D work is done.

Tasks with a checkable result

A starting file, a goal, and a finished file we verify automatically. Your agent tries, the check says if it worked.

A written quality guide

The exact criteria we judge on, shared with your team so everyone agrees on "good".

How we keep the quality high

A score is only useful if you can trust it. Every model first goes through an automatic check, then real artists — and we check the artists too.

Hidden test questions

We mix in models where we already know the right answer, to check every artist stays accurate.

More than one artist per model

The same model goes to several artists. If they disagree, a senior artist decides.

Artists are scored too

Each artist has a reliability score. Only the most accurate ones keep getting work.

Start with a small pilot

Send us a batch of outputs. You get back scores, artist reviews and fixes — and you decide if it's worth going further.

Book a pilot