Spline AI alternatives

+ Produces editable designs you can paste into Figma as well as HTML/CSS.
− Experimental Labs product with generation caps and limited iteration.

+ Supabase auth, database, and edge functions are wired up without any configuration.
− Credits run out fast when debugging, since every fix attempt costs a message.

+ Fast, with auto-rigging, retexturing and plugins for Blender, Unity and Unreal.
− Topology is messy and needs cleanup before production use.

+ The best open-weight 3D generator, close to hosted tools and runnable on a single consumer GPU.
− Local setup is heavy and texture generation needs more VRAM than shape generation.

+ Works inside the tool design teams already use and can start from your existing designs.
− Make output ignores design systems unless carefully steered and AI credits are metered.

+ Good at reconstructing a specific object faithfully from a photo, with retopology built in.
− Interface is busier than Meshy's and free credits are tight.

+ Free and fast for simple stylized objects.
− Low-poly, low-detail outputs and Luma's focus has shifted to its video products.

+ Produces some of the most detailed geometry and production-friendly quad meshes of the generators.
− Generation is slower and the credit pricing is less transparent than Meshy's.

+ Among the cleanest geometry of the hosted generators, with built-in auto-rig and animation presets.
− Fine detail and texture quality still trail hand-made assets and credits run out quickly.

+ Supports multiple frameworks and lets you edit the code directly in the browser IDE.
− Token usage is hard to predict and large projects become slow and error-prone.