Workflow for Hunyuan video that can generate a small resolution video first very quickly, then upscales it with Hunyuan v2v when you find one you like. There is a third step for upscaling and video interpolation.

Version 1.5 uses the fast video lora to generate the first video in 7 steps, significantly increasing the speed of the first generation without compromising the second.

Version 1.6 uses a TeaCache sampler to increase generation speed by 1.6 and optionally by 2.1 with worse quality.

If you already have a video you simply want to upscale, you can connect the muted load video node to the top left connection in the "Upscale and Interpolation" group and mute the previous 2.

This is just the application of some tips from this article with already available workflows.

This is not intended as tutorial on Hunyuan video, please check out the links above.