AI 3D Model Generator for Roblox Studio

Describe a prop or upload a picture, and get a 3D model to import into Roblox Studio as FBX or OBJ.

Not affiliated with or endorsed by Roblox Corporation.

3D Model for Roblox Studio

3D Model for Roblox Studio

Requires 15 Credits

One prop, vehicle, plant or building part. Name its colors and materials.

Blocky fits classic brick-built games.

Choose whether to share your 3D model with our community gallery.

Controls randomness. Use the same seed to recreate identical results.

50

More steps produce higher quality but take longer to generate.

💡 Quick Tips

Be specific in your descriptions for better results

Use descriptive adjectives like "detailed", "realistic", "stylized"

Include material and texture preferences when relevant

🎯 Model Quality

⚡
Fast Generation
About 1-3 minutes
🎨
High Quality
Detailed mesh

📤 Export Formats

GLBSTL

⏱️ Most models are ready in about 1-3 minutes, sometimes longer when it's busy. Please keep this page open.

📸 Tip: Use images under 10MB for faster processing and fewer timeout issues

Make props and scenery for your Roblox experience

Building a place in Roblox Studio takes a lot of small models: crates, trees, lamps, cars, furniture, signs and decorations. This generator makes them from a short description or a picture. On the Describe tab you write one object and choose a style; Blocky gives chunky shapes and bright solid colors that fit classic brick-built games. On the From image tab you upload concept art or a photo of one object and the AI builds the full 3D shape, back included.

Every model comes with its texture. Before you download, set the Polycount so the mesh stays under Roblox's triangle limit, then import the FBX or OBJ into Studio with the steps below.

Prompt ideas

  • a wooden treasure chest with gold trim
  • a cartoon lamp post with a round glowing lamp
  • a small red sports car
  • a pine tree with snow on the branches
  • a sci-fi crate with blue glowing panels
  • a market stall with a striped awning

How to import an AI model into Roblox Studio

  1. 1. Generate the model

    On Describe, write one object, for example "a wooden treasure chest with gold trim", and pick a style: Blocky, Smooth stylized, Low-poly or Realistic. On From image, upload one clear picture of a single object. Most models are ready in a few minutes.

  2. 2. Pick a polycount and download

    Open the More menu under the model. Choose a Polycount (Full, 50%, 25% or Low-poly); the menu shows about how many triangles each one has. Download FBX or OBJ. You can also download the free GLB and turn it into FBX or OBJ with our free converters.

  3. 3. Import into Roblox Studio

    In Studio, open the File menu and choose Import, then pick your FBX or OBJ file. Check the import settings and any warning icons, then click Import. To test without adding a copy to your inventory, turn off Upload to Roblox first.

  4. 4. Place and size it

    The model comes in as a MeshPart. Use Find in Workspace in the Importer to jump to it, then move, scale and anchor it like any other part.

Steps follow Roblox's own 3D Importer guide. Need FBX from a GLB? Use the free GLB to FBX converter or GLB to OBJ converter.

Tips for models that work well in Roblox

  • Roblox's mesh specifications say a single mesh can't have more than 20,000 triangles. Stay well under that for props you place many times, so your experience runs smoothly on phones.
  • FBX keeps the texture with the model and is the format Roblox's export guide recommends. OBJ is fine for a simple static prop.
  • Roblox supports textures up to 4096 x 4096 pixels, and each mesh can use one material. Small props look fine with a smaller texture.
  • One object per prompt or picture. A whole scene comes out as one merged lump; make the table, chairs and lamp one at a time.
  • Simple, chunky shapes survive a low polycount best. Thin poles, wires and fingers break up first when you reduce triangles.

Limits from Roblox's mesh specifications and texture specifications, checked October 2026. Roblox can change them, so check the importer's warnings.

Change the look after you generate

Want the same chest in a different color, or a crate that looks rusty? Open the model in the AI 3D Texturing Studio and describe the new surface; the shape stays the same. For a quick color swap, the free 3D Model Color Changer recolors parts in your browser.

Roblox Studio 3D Model FAQ

Yes. Download the model as FBX or OBJ and use File > Import in Roblox Studio. Studio's importer reads .fbx, .obj and .gltf files. FBX keeps the texture with the model. Check that the mesh is under 20,000 triangles, which is the limit in Roblox's mesh specifications; the More menu shows the triangle count for each Polycount before you download.
Roblox's documented limit is 20,000 triangles per mesh, and rigid accessories are limited to 4,000. That is a ceiling, not a target: props that appear many times in a place, such as trees, crates or fences, should use far fewer so the game runs well on phones. Pick 25% or Low-poly in the Polycount menu and check the result in Studio.
Not ready to upload as they are. Our models are static meshes with no rig, cages or attachment points, which avatar items need, and Marketplace items have their own size and triangle rules. The models work well as props, scenery, vehicles and decorations inside your own experiences, or as a starting mesh you finish in Blender.
Every 3D app uses its own units, so a model can import at an unexpected size. Select the MeshPart after import and resize it with the Scale tool, or set its Size in the Properties window.
Yes. Open the model in our AI 3D Texturing Studio to repaint it from a text prompt, or in the free 3D Model Color Changer to recolor parts. Then download it again and convert it to FBX for Studio.
Describe uses 15 credits per model and From image uses 20 credits. New accounts get free starter credits, and paid plans add more. The file converters and viewers on The3DAI are free and use no credits.
No. The3DAI is an independent AI 3D model generator. It makes standard FBX and OBJ files that you import into Roblox Studio yourself. The3DAI is not affiliated with or endorsed by Roblox Corporation.

Roblox and Roblox Studio are trademarks of Roblox Corporation, used here only to describe compatibility. Not affiliated with or endorsed by Roblox Corporation.