Gigapixel Model Settings

This node has exactly one job: it carries a model choice into the GigapixelAI node. Topaz Gigapixel ships with several models tuned for different kinds of source material, and that choice changes what comes out more than the scale slider does. Nothing processes here - this node is a settings object you wire into the main node's model input. Leave it unwired and GigapixelAI falls back to its own default.

The nine choices match the model categories you'd see in the Topaz GUI:

• Standard - the safe, general-purpose default.
• High Fidelity - preserves detail on already-clean sources.
• Low Resolution - for small, grainy input that needs rescuing.
• Art & CG - for illustrations and digital art, where photorealism models fight you.
• Lines - line art, sketches, manga.
• Text & Shapes - screenshots, UI, diagrams; keeps edges crisp.
• Very Compressed - heavy JPEG-style artifact removal.
• Redefine - a creative reinterpretation rather than a faithful upscale.
• Recover - restoring faces and text from badly degraded input.

The upscaling picture matters here: the free stack splits "add pixels" (ESRGAN, instant) from "add detail" (SeedVR2 and friends, generative), and the argument between the two is the most common upscaling thread on Reddit. Topaz collapses both into one paid app with model presets per source type, and this node is how you reach that preset menu from inside ComfyUI. If you process a mix of material, you'll want two of these - one set to Art & CG for the renders, one set to Recover for the scanned photos - or you can swap models per batch by swapping the wiring.

Output: model_settings, which connects to the GigapixelAI node's model input. That's the whole API.

Install and gotchas are the pack's, not this node's: it does nothing without a licensed Topaz Gigapixel 8 install, it's Windows-only, and the main node needs the right gigapixel_exe path. One thing people trip on with this specific node: setting the model here does nothing until you actually wire it into GigapixelAI - it's an input object, not a magic global.