This ComfyUI tutorial workflow demonstrates how to drive Ideogram v4 via a structured JSON prompt to get clean text rendering, consistent brand colors, and reliable layout control. Instead of a single free-form sentence, you build a compact JSON object that describes the scene, in-image text, a color palette, and per-object bounding boxes. That JSON is fed into the IdeogramV4 partner API node, which returns a high-quality image that adheres to your specified layout as closely as the model allows. The output flows directly to SaveImage.
To make authoring easier, the JSON Prompt Builder group (enable it by selecting the group and pressing Ctrl+B) includes a MarkdownNote with a schema/template and an optional GeminiNode that can transform a plain brief into a well-formed JSON prompt. You can preview the structured prompt with PreviewAny before sending it to IdeogramV4, iterate on bounding boxes or palette values, and then render the final image. This approach is ideal when you need reliable in-image text, brand-safe palettes, and object placement that a natural-language prompt alone struggles to achieve.
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.
GET https://comfy.org/workflows/download/5ae006b13a36.jsonFetching workflow JSON…
Run it from Python or TypeScript with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
# Install (beta)
pip install comfy-sdk # Python
npm i @comfyorg/sdk # TypeScript
# Run this workflow (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
wf = client.workflows.from_file("workflow_api.json")
job = client.run(wf)
for output in job.get_outputs("<output-node-id>"):
output.to_file(output.name)The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API). API access requires a Comfy Cloud plan with an API key. SDK docs · Get an API key
FAQ
