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Runway is a company focused on generative AI, providing powerful video generation capabilities. Currently, ComfyUI has integrated the Runway API, allowing you to directly use the related nodes in ComfyUI for video generation. Currently, ComfyUI natively integrates the following Runway video generation model:
  • Runway Gen4 turbo
End of life (EOL): Runway Gen3a Turbo and Runway First-Last-Frame to Video reached end of life on July 30, 2026. Runway retired Gen-3 Alpha Turbo on that date. The related Partner Nodes (RunwayImageToVideoNodeGen3a, RunwayFirstLastFrameNode) and workflow templates are deprecated and no longer supported.

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What Runway Video Generation is good at

  • Image-to-video generation: The Runway Gen4 turbo node generates a video from an input image and a text prompt describing the video content
  • Adjustable video length: Modify the duration parameter to set the video length
  • Adjustable aspect ratio: Modify the ratio parameter to set the video aspect ratio
End of life (EOL): Runway Gen3a Turbo and Runway First-Last-Frame to Video reached end of life on July 30, 2026. Runway retired Gen-3 Alpha Turbo on that date. The related Partner Nodes (RunwayImageToVideoNodeGen3a, RunwayFirstLastFrameNode) and workflow templates are deprecated and no longer supported.

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Retired workflows and replacements

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 If you can’t find them in the template, your ComfyUI may be outdated.If nodes are missing when loading a workflow, possible reasons: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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Gen4 turbo Image-to-Video Workflow

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1. Workflow File Download

The video below contains workflow information in its metadata. Please download and drag it into ComfyUI to load the corresponding workflow.

Download Json Format Workflow File

 Download the image below as input image ComfyUI Runway gen4 turbo image to video Input Image

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2. Complete the Workflow Execution Step by Step

ComfyUI Runway gen4 turbo image to video Step Guide You can refer to the numbers in the image to complete the basic image-to-video workflow execution:
  1. In the Load Image node, load the provided input image
  2. In the Runway Gen4 turbo node, set the prompt to describe video content, modify the duration parameter to set video length, modify the ratio parameter to set video aspect ratio
  3. Click the Run button, or use the shortcut Ctrl(cmd) + Enter to execute video generation.
  4. After waiting for the API to return results, you can view the generated video in the Save Video node (right-click to save). The corresponding video will also be saved to the ComfyUI/output/ directory.