The best free AI 3D model and CAD generators (10)

Every option in the catalog for when you need to turn a prompt or photo into a usable 3D asset — 10 AI 3D model and CAD generators, 10 of them free or freemium, with the pricing tier printed on every row.

10tools listed
10free or freemium
2with no paid plan at all
1sub-categories covered

Best Free AI 3D model and CAD generators — straight answers

What are the best free AI 3D model and CAD generators?

Flocci AI Tools lists 10 of them, ordered free tiers first: Hunyuan3D-2 (Tencent), TRELLIS (Microsoft), Meshy, Polycam and Rodin (Hyper3D). Every one of them is free or has a free tier. Each entry states what it uniquely does rather than a score.

Which of these are completely free?

2 on this page are marked fully free with no paid plan at all: Hunyuan3D-2 (Tencent) and TRELLIS (Microsoft). The remaining 8 are freemium, trial or paid, and each is labelled with its exact tier so nothing surprises you at sign-up.

How is this list ordered?

Free tools first, then freemium, then trial, then paid, and alphabetically inside each tier. Nobody pays to appear higher: Flocci AI Tools carries no ads, no sponsored slots and no paid listings, so the order reflects price and nothing else.

All 10 tools, free tiers first

Browse 3D & CAD Generation →
Best Free AI 3D model and CAD generators: pricing tier, category and the capability each tool is listed for.
ToolPricingTypeListed for
Hunyuan3D-2 (Tencent)Free3D & CAD GenerationOpen-weight two-stage shape generation + high-res texture synthesis pipeline
TRELLIS (Microsoft)Free3D & CAD GenerationOpen-weight model outputting radiance fields, 3D Gaussians AND meshes from one representation
MeshyFreemium3D & CAD GenerationText/image/sketch-to-3D with auto-texturing and auto-rigging
PolycamFreemium3D & CAD GenerationLiDAR + photogrammetry reality capture on iOS/Android, not generative-only
Rodin (Hyper3D)Freemium3D & CAD GenerationControlNet-style guidance via bounding boxes, voxels, point clouds
SloydFreemium3D & CAD GenerationGuest plan: 1 free AI 3D generation daily, in-browser
Spline AIFreemium3D & CAD Generation3D generation inside a full web-based 3D/interactive design editor
TripoFreemium3D & CAD Generation6.5M+ creators, 100M+ models generated claimed traction
World Labs MarbleFreemium3D & CAD GenerationGenerates fully navigable 3D worlds (not single objects) as Gaussian splats, viewable in VR
Zoo (KittyCAD)Freemium3D & CAD GenerationZookeeper: conversational AI agent that edits real parametric B-rep CAD geometry, not meshes

Hunyuan3D-2 (Tencent)

3D & CAD Generation
free
  • Open-weight two-stage shape generation + high-res texture synthesis pipeline
  • State-of-the-art open 3D generation from Tencent Hunyuan lab
  • Runs locally via Diffusers/ComfyUI integrations

TRELLIS (Microsoft)

3D & CAD Generation
free
  • Open-weight model outputting radiance fields, 3D Gaussians AND meshes from one representation
  • Up to 2B parameters, trained on 500K 3D asset dataset
  • MIT-licensed, deployable locally or on Azure

Meshy

3D & CAD Generation
freemium
  • Text/image/sketch-to-3D with auto-texturing and auto-rigging
  • Blender/Unity plugins for game pipelines
  • 100 free credits/month with CC BY 4.0 output

Polycam

3D & CAD Generation
freemium
  • LiDAR + photogrammetry reality capture on iOS/Android, not generative-only
  • Gaussian splat and floor-plan generation
  • Free AI 3D model generator, texture generator, and viewer tools

Rodin (Hyper3D)

3D & CAD Generation
freemium
  • ControlNet-style guidance via bounding boxes, voxels, point clouds
  • Part-level editing and region refinement of generated meshes
  • Exports GLB, FBX, OBJ, STL, USDZ

Sloyd

3D & CAD Generation
freemium
  • Guest plan: 1 free AI 3D generation daily, in-browser
  • Parametric/template-based generation, not just diffusion
  • Skybox, retexturing and video-to-motion on paid tiers

Spline AI

3D & CAD Generation
freemium
  • 3D generation inside a full web-based 3D/interactive design editor
  • Publishes directly to web, iOS and Android
  • Image-to-3D remix and variant generation

Tripo

3D & CAD Generation
freemium
  • 6.5M+ creators, 100M+ models generated claimed traction
  • Auto-rigging, segmentation and stylization
  • Plugins for Blender, Unity, Unreal, ComfyUI, Godot

World Labs Marble

3D & CAD Generation
freemium
  • Generates fully navigable 3D worlds (not single objects) as Gaussian splats, viewable in VR
  • World API (Jan 2026) for programmatic world embedding in apps
  • Free tier: 4 world generations/month, no credit card

Zoo (KittyCAD)

3D & CAD Generation
freemium
  • Zookeeper: conversational AI agent that edits real parametric B-rep CAD geometry, not meshes
  • Manufacturing-aware design feedback
  • ITAR-compliant, SOC 2 Type II enterprise CAD

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