How do multiple style images affect the result?

Chaining multiple inputs lets the workflow blend influences from each reference. Earlier references often set broad tone and palette, while later ones can nudge details. If styles conflict, reduce the number of references or adjust their order to prioritize the look you want.

Where do I set my Krea API key?

Krea2 nodes call the Krea API. Enter your API key where the node UI requests credentials or follow your ComfyUI/Krea integration’s setup instructions. Without valid credentials, Krea2ImageNode will not generate results.

How can I control how strongly the style influences the image?

If the nodes expose a style strength or weighting parameter, lower it for a looser influence and raise it for a closer match to the reference. You can also use fewer or more focused references (e.g., a cropped texture or palette) to fine-tune the effect.

Why does my output not match the content of the style image?

This workflow transfers style, not content. Ensure your text prompt clearly describes the subject and composition you want. Use style references that emphasize look (palette, brushwork, lighting) rather than content elements you expect to be copied.

Krea 2: Style Reference - ComfyUI Workflow

This ComfyUI workflow demonstrates style-conditioned text-to-image generation using the Krea v2 API. You provide one or more style reference images and a text prompt; the graph extracts a style representation from your references with Krea2StyleReferenceNode and uses it to guide image synthesis in Krea2ImageNode. The output is a new image that fulfills your prompt while inheriting the aesthetic from your reference images. LoadImage supplies the style inputs, Krea2StyleReferenceNode encodes them into a style signal, Krea2ImageNode performs the generation request to Krea’s API, and SaveImage writes the result to disk. A MarkdownNote is included to annotate the graph with usage tips.

Technically, the data flows as follows: one or more images from LoadImage feed into Krea2StyleReferenceNode, which produces a style reference output (an embedding/handle) that conditions the generator. Krea2ImageNode combines this style reference with your text prompt and generation settings (e.g., size and other parameters exposed in the node) to create the final image on the Krea backend. You can chain multiple input images through the style node(s) to blend influences from different sources, enabling nuanced control over palette, texture, and overall look while keeping the content determined by your prompt.

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.

fd76422c14ea.json

Fetching workflow JSON…

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.

SDK docs Get an API key

FAQ

Frequently Asked Questions