This ComfyUI workflow compares video upscaling techniques using the Topaz Starlight Precise 2.5 model against its predecessors. The primary focus is on enhancing video resolution to 4K while minimizing artifacts and preserving sharpness. The Topaz Starlight Precise 2.5 model is designed to produce clearer and more detailed output, making it a preferred choice for high-quality video enhancement. By utilizing nodes such as LoadVideo, SaveVideo, and TopazVideoEnhance, this workflow provides a streamlined process for users to upscale their videos efficiently.
Key differences between the Topaz Starlight Precise 2.5 model and earlier versions include improved artifact reduction and sharper image quality. The workflow leverages advancements in AI-driven video processing, offering a significant upgrade in terms of visual fidelity. Users can expect a noticeable improvement in video clarity and detail, making this workflow ideal for professionals seeking high-resolution outputs for various applications.
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/1c77e82713b7.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 "Video Upscale: Topaz Starlight Precise 2.5" (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
# This workflow, exported in API format (see note below)
wf = client.workflows.from_file("api_topaz_starlight_precise25_api.json")
job = client.run(wf)
for output in job.get_outputs("4"): # SaveVideo
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
