Spline V2 launches with rebuilt 3D editor, AI agents, WebGPU, and new desktop app

The browser-based 3D design platform Spline has gone through one of its biggest overhauls with the launch of Spline V2, introducing a redesigned editor, WebGPU rendering, new modeling and material tools, and deeper support for AI agents. A new built-in AI Agent can inspect and modify scenes, work with objects, materials, lighting, events and states, arrange elements using procedural tools and a constraint solver, and generate HTML or JavaScript connected directly to the scene.

Spline is also opening the editor to external AI and coding tools through a new MCP server, allowing apps such as ChatGPT, Claude Code, Cursor and VS Code to control it using the same tools as Spline's own agent. The rebuilt macOS and Windows app automatically detects supported MCP connections, opens scenes in isolated tabs for better stability, and lets background renders continue while users work elsewhere.

The renderer has been rebuilt on WebGPU, with WebGL available as a fallback, improving performance for heavier scenes and enabling features such as PBR materials, HDR lighting, screen space reflections, new sky and fog systems, dust, vertex colors and a new hair system. Spline also says booleans are around four times faster, exports are smaller, and several other modeling and performance improvements are included. The V2 update is available now on the web and desktop.