PartCrafter vs Sloyd

PartCrafter is a free, open-source model that generates multiple 3D parts and objects from a single RGB image. It can handle individual objects and complex scenes, producing distinct meshes with meaningful part structure without requiring a pre-segmented image. Its architecture represents parts with disentangled latent tokens and uses hierarchical attention to pass information within and across parts. Local inference scripts can remove backgrounds and optionally apply style transfer to adapt real-world photos toward the rendered-image domain used for training. An optional vision-language feature can suggest the number of parts; Gemini is the default provider, and the provider architecture can be extended. Pretrained object-level and scene-level weights are hosted on Hugging Face. Installation is from the GitHub repository in a Python environment, and inference requires a CUDA-enabled GPU with at least 8 GB of VRAM. The linked Hugging Face demo is paused, though its page says users can ask the authors to restart it. The repository lists an MIT license and provides the software as-is, without warranty.

Sloyd generates 3D models from text prompts or images and provides tools to refine them without extensive manual 3D work. Its handcrafted parametric templates use sliders for changing shapes, proportions, and details. Other tools cover AI rigging and animation, image creation and editing, retexturing, 4K texture editing, and skybox generation. Users can set target polygon counts and choose quad topology for manual editing or animation. The authenticated REST API handles asynchronous generation and editing jobs, with controls for polycount, topology, and texture resolution. Native plugins are available for Roblox, Unity, Unreal, Godot, Maya, and Blender. Plugin exports include FBX, GLB, and OBJ; API downloads also include USD, USDZ, BLEND, PLY, STL, and 3MF. The free Guest plan allows one AI generation per day and community-model downloads only. Sloyd Plus costs $15 a month, while Sloyd Pro costs $50 a month; both include commercial use, and marketplace reselling is limited to Pro.