# Python 3.10+: pip install comfy-sdk==0.4.0
import os
from comfy_sdk import Comfy
api_key = os.environ.get("COMFY_API_KEY", "").strip()
if not api_key: raise RuntimeError("Set COMFY_API_KEY")
os.environ.setdefault("COMFY_BASE_URL", "https://cloud.comfy.org")
client = Comfy(api_key=api_key)
workflow = client.workflows.from_json({
"1": {
"class_type": "HunyuanImageTextToImageApi",
"inputs": {
"model": "hy-image-3.5-preview",
"model.aspect_ratio": "auto",
"model.height": 2048,
"model.prompt": "Create a black-and-blue acid-style graphic poster: dark ground, fluorescent colour blocks, oversized overlapping display type and experimental graphic design.\n\nAt the centre, liquid metal clouds dominate the frame: polished chrome and molten mercury with mirror-like reflections, wet specular highlights, rippling folds and slow drips, and a faint iridescent sheen along the torn edges. Slanted electric blue bands cut through them.\n\nLarge white type reading \"HY Image 3.5 Preview\" is laid across the metal and fills the upper two-thirds of the sheet: three stacked lines, \"HY IMAGE\", \"3.5\" and \"PREVIEW\", each line set flush to the left and right edges and cropped by them, in a heavy condensed sans-serif with very tight letter spacing, the tallest line roughly a quarter of the image height. The title covers about half of the total image area and stays the largest element in the frame; the metal surface keeps the brightest, glossiest and most detailed rendering.\n\nAround the metal, place small dots, labels, a date stamp reading \"2026.09\" and small descriptive text, all aligned to a clear grid and kept clearly subordinate to the title.\n\nKeep the same design logic: a strong focal point, a clear grid, a distinct title hierarchy, and edge information and decorative elements that stay in balance. Vary the main subject, the copy, the colour scheme or the theme so the piece reads as an original extension within the same design system. Reposition the titles, supporting fields, icons, descriptive text, buttons and information cards, so the layout shows the reference's composition method without copying its content. The finished piece should read as polished commercial design: detail-rich, clearly structured and easy to read.",
"model.resolution": "2K",
"model.seed": 432816159,
"model.watermark": False,
"model.width": 2048
},
"_meta": {
"title": "Tencent HY Image: Text to Image"
}
},
"2": {
"class_type": "SaveImageAdvanced",
"inputs": {
"filename_prefix": "Hy_image_3.5_preview",
"format": "png",
"format.bit_depth": "8-bit",
"format.input_color_space": "sRGB",
"images": [
"1",
0
]
},
"_meta": {
"title": "Save Image (Advanced)"
}
}
})
# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)