Avaturn vs CharacterStudio

Avaturn creates customizable 3D human avatars from 2D photos for games, apps, and metaverses. Its generative AI produces a recognizable avatar, which users can adjust by body shape, clothes, accessories, hairstyle, shoes, and glasses. Avaturn says these options support more than 10,000 possible looks. Avatars can be exported as GLB/glTF 2.0, FBX, or VRM 3D models for Blender, Unity, Unreal Engine, Maya, Cinema4D, and other environments. Exports include a standard humanoid rig, ARKit blendshapes, and visemes, and are compatible with Mixamo animations and VTubing software. Developer tutorials cover Unity, Unreal Engine, HTML and JavaScript, Three.js, Android, and iOS. The listed app integrations are free, with no limits on avatar creation or exports through the free integration. The API and web SDK for advanced customization require a paid package; PRO costs $800 a month and includes up to 1,000 avatars per month, with an extra-avatar charge listed. Platforms include Android, iOS, macOS, web, and Windows, though standalone Windows and Mac apps require contacting Avaturn.

CharacterStudio is a free browser toolkit for creating and optimizing 3D VRM character avatars. You can build characters with preloaded traits, point-and-click controls, a color picker, your own models and textures, or a manifest.json file. Imported models must use VRM format, with version 0.0 recommended. Texture replacement works by dropping an image into the browser, ideally using UVs that match the base mesh. Creations export as GLB, VRM, or screenshots, and programmable animations are listed. A one-click optimizer can merge skinned meshes and atlas textures; the documentation says this can reduce an avatar to one draw call. Batch export can randomize outputs or follow metadata schemas. Rendering uses Three.js and WebGL. The code is open source under the MIT license. JSON assembly and export is documented for batch Anata VRMs but remains a work in progress for general use.