Use Hitem3D Online - Ultra-Detailed Image to 3D

Hitem3D is an AI image-to-3D model developed by Math Magic, built on their Sparc3D and Ultra3D research models. It converts one to four photos into a 3D model at up to 1536³ geometric resolution with as many as 2 million faces - the highest geometry resolution among mainstream AI 3D generators, most of which work at 1024³ or below. It is especially popular for 3D printing, resin miniatures, and other work where fine surface detail matters.

Yes. In 2026 Math Magic rebranded Hitem3D to Hi3D. Both names refer to the same technology and models. On 3D AI Studio you get the current flagship version, Hitem3D 2.1, in both its Fast and Pro resolution modes.

Open 3D AI Studio, choose Hitem3D 2.1 as your model, and upload a single image - or exactly four images (front, left, back, right) in multi-view mode. Pick Fast or Pro resolution, choose Shaded or PBR materials, and click generate. Your model is ready in about 7 to 8 minutes and can be previewed in the browser. No Hitem3D account or subscription is required.

New users get free credits on 3D AI Studio that you can spend on Hitem3D generations. After that, generation is pay-as-you-go with credits - there is no separate Hitem3D subscription, and your credits also work with every other model on the platform (Hunyuan, Meshy 6, Tripo, Rodin, Trellis 2, and more).

It is the size of the internal 3D grid the AI reconstructs geometry on - 1536 units in each dimension. Most AI 3D generators work at 1024³ or below. The extra resolution preserves fine surface features like cloth folds, engravings, rivets, and skin texture, which is why Hitem3D output holds up under resin printing at 0.05 mm layer heights where lower-resolution meshes look soft.

Yes - this is what Hitem3D is best at. The Sparc3D pipeline produces watertight meshes designed for physical manufacturing. Generate your model, convert it to STL or OBJ with the built-in export tools, and slice it. For larger prints, use the segmentation tool to split the model into parts with 3D-printable ball or dovetail joints.

Yes. Models you generate on 3D AI Studio are yours to use commercially - games, client work, 3D prints you sell, and anything else.

Both run at 1536³ resolution. Fast uses a distilled pipeline that finishes sooner and costs fewer credits - it is the right choice for most generations. Pro runs the full-precision pipeline for maximum surface detail and fidelity, best for hero assets, close-up renders, and prints where every detail counts. Pro adds several minutes and roughly doubles the credit cost.

Upload four photos of your object - front, left, back, and right, shot at the same height and distance - and Hitem3D reconstructs geometry from all four angles at once. This dramatically improves accuracy on the sides and back compared to single-image generation, and on 3D AI Studio it costs the same as a single-image generation.

Out of the box they are very dense (up to 2 million faces), which is ideal for printing and rendering but heavy for real-time use. On 3D AI Studio you can fix that in one step: run the quad remesh or smart low-poly tool on your generation to get a game-ready mesh, or set a lower polygon count before generating.

Generations arrive as GLB and can be converted to STL, OBJ, FBX, USDZ and more with the built-in format tools - compatible with Blender, Unity, Unreal Engine, Maya, and every mainstream slicer.

A sharp, well-lit photo with the object centered, filling 60 to 80 percent of the frame, on a plain background. PNG, JPG, and WebP are supported. Avoid strongly reflective or transparent objects - AI reconstruction struggles with those regardless of the model.