<img width="1936" height="689" alt="IG4" src="https://github.com/user-attachments/assets/e17f619f-c839-4d34-b551-936c8d1da1bd" />

ComfyUI IG4 Solo

A lightweight, optimized custom guider node for ComfyUI.

IG4 Solo provides precise control over conditioning modes, allowing you to switch between cond_only, minimal_cfg, and standard cfg modes. It is designed to be highly efficient and is perfect for advanced users looking to implement staged guidance workflows.

Features

• Three Optimized Modes: Easily toggle between cond_only (pure positive), minimal_cfg (subtle guidance), and cfg (standard) modes.
• Staged Guidance Ready: Designed to pair perfectly with CFGOverride nodes for advanced "natural-to-sharp" sampling transitions.
• Lightweight: Clean, efficient code with no unnecessary dependencies.

Why Use This Node?

Ideogram 4 is a powerful model that utilizes both a conditional and an unconditional model branch. While using both is ideal for quality, it can be computationally heavy.

IG4 Solo is designed specifically to allow you to run Ideogram 4 in a "Single-Model" mode. By using this node, you can bypass the need to load the secondary ID_deogram4_unconditional_fp8_scaled model, saving VRAM and increasing generation speed.

Note: While using a single model can reduce VRAM usage, expect a slight variation in stylistic output compared to the official dual-model setup. This node is perfect for rapid prototyping, experimentation, or low-VRAM environments.

Example Workflow

To get the most out of IG4 Solo, we recommend a staged guidance schedule:

1. IG4 Solo: Set mode to cond_only (or cfg at 1.0).
2. CFGOverride: Chain this after your model to force higher CFG values (e.g., 5.0) only during the final 20% of sampling (80%–100%).

This setup provides the natural, creative structure of a low-CFG generation with the sharp, high-contrast detail finish of high-CFG.

Installation

Option 1: ComfyUI Manager (Recommended)

1. Open ComfyUI Manager in your browser.
2. Click Install via Git URL.
3. Paste the following URL: https://github.com/PartisanoHub/ComfyUI-IG4-Solo
4. Click OK and restart ComfyUI.

Option 2: Manual (CLI)

1. Open your terminal or command prompt.
2. Navigate to your ComfyUI custom_nodes folder: cd path/to/ComfyUI/custom_nodes
3. Clone this repository: git clone https://github.com/PartisanoHub/ComfyUI-IG4-Solo
4. Restart ComfyUI.

Usage

1. Add the IG4 Solo node to your workflow.
2. Connect the GUIDER output to your Sampler node.
3. For advanced results, use it in combination with a CFGOverride node to apply higher CFG values only during the final percentage of the sampling process (e.g., 80%–100%).

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Created with ❤️ for the ComfyUI community.