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This guide shows how to run the Astra 2 workflow in ComfyUI. For what the model is and what it does best, see the Astra 2 overview.
To use the Partner Nodes, you need to ensure that you are logged in properly and using a permitted network environment. Please refer to the Partner Nodes Overview section of the documentation to understand the specific requirements for using the Partner Nodes.
Make sure your ComfyUI is updated.Workflows in this guide can be found in the Workflow Templates. If you can’t find them in the template, your ComfyUI may be outdated.If nodes are missing when loading a workflow, possible reasons:
  1. You are not using the latest ComfyUI version (Nightly version)
  2. Some nodes failed to import at startup

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In ComfyUI

Use Topaz Video Enhance. Topaz Video Enhance (Legacy) does not offer Astra 2. Set upscaler to Astra 2, resolution to FullHD or 4K; input must be MP4. Optional Prompt: max 450 frames (~15 s @ 30 fps). Empty prompt: up to 9000 frames. Expand advanced controls for Sharp and Realism when needed.

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Example workflow

Load Video → Topaz Video Enhance → Save Video. After opening the template, pick Astra 2 on the upscaler if another preset is selected. Astra 2 workflow preview

Run on Comfy Cloud

Open the workflow instantly on Comfy Cloud.

Download workflow

Download the workflow JSON for local ComfyUI.