No. Lite, Basic and PRO work on their own. Only the AI Subject feature of PRO needs the optional free AI Pack (onnxruntime plus the SAM 2.1 / BiRefNet models). Nothing is downloaded unless you press Install AI Pack and allow online access in Blender.

Blender 4.2 LTS up to 5.2 LTS. It was tested on 4.2.23, 4.3.2, 4.4.3, 4.5.15, 5.0.1, 5.1.2 and 5.2.3. Following a 3D object or bone needs Blender 4.4 or newer.

A .blend with a Maskwright node needs the add-on on every machine that renders it. For render farms, use PRO: Convert to Node Group turns the node into a normal node group that renders the same without Maskwright installed.

The add-on is GPL-3.0-or-later. Basic and PRO cover one user; PRO Studio covers up to 15 users in one company; PRO Enterprise covers unlimited users in one company and includes priority email support.

Lite gives you the node with a single drawn mask, Soft Edge, Opacity and Invert. Basic adds Border Width, Effect Mask, Quick Shapes, Auto Mask, animation with Motion Blur, and SVG / JSON import and export. PRO adds everything in Basic plus AI Subject, tracking, spline layers and blend modes, fades, Edge Refine, baking, Convert to Node Group, batch and command line, and export to After Effects, Nuke, Silhouette and Fusion / DaVinci Resolve.