The Short Answer

Yes, partly. In 2026 an AI coding assistant such as Claude or Cursor can write a working Three.js scene from a prompt, and AI 3D generators can turn a photo into a rough model. That is enough for a prototype. What AI does not reliably do yet is make accurate product models, keep the scene smooth on mid-range phones, or design a page where the 3D earns its place.

What AI Coding Assistants Do Well

AI assistants are good at the boilerplate of 3D on the web: setting up a Three.js or React Three Fiber scene, loading a GLB model, adding lights and orbit controls, and wiring a basic scroll animation. What used to take a developer a day can take an hour.

They are also good at explaining existing code and fixing small errors. For a founder who wants to test whether 3D suits their product before paying for it, that is a real change. We saw the same shift in apps, covered in building an iPhone app with AI.

Where AI Falls Short on 3D

The gaps are the parts visitors notice most: model quality, performance and design. A prompt gets you a scene that works on a fast laptop. It rarely gets you one that loads quickly on a three-year-old Android phone, looks like your real product, and feels designed rather than assembled.

  • Models: AI-generated meshes often have messy geometry, baked-in lighting and textures that fall apart up close. Real products need exact proportions, logos and materials.
  • Performance: AI code tends to use default settings. Compressing models, controlling draw calls and handling low-end devices still takes experience. Our guide to GLB optimisation shows what that involves.
  • Design: deciding what the 3D should explain, where the camera goes, and how it fits the page is a design problem, not a coding one.
  • Maintenance: code generated in bursts is hard to extend later, a pattern we cover in the real cost of vibe-coded websites.

What About AI 3D Model Generators?

Image-to-3D and text-to-3D tools produce a usable rough model in minutes, which is useful for mood, placeholders and early concepts. For a live product page they usually need a modeller to fix topology, rebuild materials, correct proportions and cut file size before they are fit to ship.

The same applies to product images generated by AI, which we compare with renders in AI product images versus 3D renders.

A Sensible Way To Use AI

Use AI to prototype, then decide. Build a rough version with an assistant, show it to customers or your team, and learn whether 3D actually helps sell the product. If it does, bring in people who can make it accurate, fast and on brand. If it does not, you have saved the budget.

If you already have an AI-built prototype, a studio can often reuse the idea and the structure while rebuilding the models and the performance-critical parts.

Where We Fit

Kalex designs and builds 3D websites with models made in Blender and scenes built in Three.js and GSAP, and we use AI tools ourselves where they speed things up. If you have a prototype or an idea, see our 3D website service or send it over and we will tell you what it would take to ship.