This ComfyUI workflow performs high-quality single-image super-resolution using the open-source SeedVR2 upscaling model. It’s a minimal, production-friendly pipeline: LoadImage ingests your source image, the SeedVR2 Upscale node (c35dd4ba-0fe3-47d6-afce-1c56d9fe5beb) increases resolution while reconstructing fine detail, and SaveImage writes the result to disk. Because the graph focuses solely on upscaling, there are no prompts, samplers, or diffusion steps involved—making it fast, repeatable, and easy to tune.
Under the hood, SeedVR2 applies a learned mapping that predicts high-frequency detail at a higher resolution, preserving the original composition and color while improving sharpness and texture. In practice, you load your image, choose the scale factor exposed by the SeedVR2 node (commonly 2x or 4x, depending on how the node is configured), queue the job, and collect the output. This makes the workflow ideal for preparing assets for print, upscaling renders, or polishing AI-generated images without altering their content.
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
