This ComfyUI workflow is a minimal, purpose-built pipeline for upscaling and enhancing AI-generated images to 4K. It wires three nodes in sequence—LoadImage → GeminiImage2Node → SaveImage—to take a source image, send it to an external upscaling service, and write the enhanced output to disk. The heart of the process is the GeminiImage2Node, which forwards your image to a remote model (Nano Banana Pro) via a Google-integrated API call, returning a higher-resolution result with improved edge sharpness and local detail coherence.
Because the enhancement runs through an API, you avoid the VRAM costs of local super-resolution models while gaining consistent 4K outputs. The workflow preserves your original composition and style, focusing on clarity, micro-contrast, and texture definition. It’s ideal for lifting soft or low-res AI art, product renders, or concept frames to presentation-ready resolution without rebuilding the scene.
API
Use this workflow from code
Every Comfy workflow is a JSON graph. The payload below is this workflow, exactly as ComfyUI runs it — fetch it from the URL, keep it in version control, or load it in ComfyUI and run it node by node.
Run it from TypeScript or Python with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
// Install (beta)
npm i @comfyorg/sdk
// Run this workflow (TypeScript)
import { Comfy } from "@comfyorg/sdk";
const client = new Comfy({ apiKey: "comfyui-..." });
const wf = await client.workflows.fromFile("workflow_api.json");
const job = await client.run(wf);
await job.getOutputs("<output-node-id>")[0].toFile("output.png");The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API).
Comfy Cloud API access requires a plan with an API key.
FAQ
