if you are very good at prompting and just want it all done with one click, this is the workflow for you. my first workflow uploaded so feel free to give critique. i added some optimization nodes where i felt it would help the speed/vram. not all nodes placed help the speed, but it maintains as feasible generation times.

there are two prompt boxes, the top one for KREA2, the bottom one for H3. you prompt like you would for image generation then prompt like you would for I2VA.

this workflow combines the krea 2 generation workflow into the H3 generation workflow to create an all in one generation hub for going straight from a prompt to an image to a video in one generation

gonna need some nodes to get it running, and if you have issues leave a comment and ill get back to you ASAP

custom nodes needed(as far as i know):
KJNodes
RTXSuperResolution
rgthree-comfy

interpolation model:
film_net_fp16 location: https://huggingface.co/Comfy-Org/frame_interpolation/blob/3564e661e78df404b0872c91b9e1cb2dba4bd296/frame_interpolation/film_net_fp16.safetensors

tiny vae model:
https://huggingface.co/Kijai/MiniMax-H3-TAE/blob/main/vae_approx/taeh3.safetensors

maybe some minimax nodes, but once the workflow is open, it should show you the errors tab which you can copy the nodes needed into google and find them. otherwise, feel free to comment.