Since there is generated video, it seems like someone solved this problem.
Oh yes, it has come a LOONG way. Some projects to look at are:
https://github.com/ModelTC/LightX2V
https://github.com/deepbeepmeep/Wan2GP
And for images: https://github.com/nunchaku-tech/nunchaku
Video generation/editing is very GPU heavy though.
I dunno what card you have now, but with text LLMs (or image+text input LLMs), hybrid CPU+GPU inference is the trend days.
As an example, I can run GLM 4.6, a 350B LLM, with measurably low quantization distortion on a 3090 + 128GB CPU RAM, at like 7 tokens/s. If you would’ve told me that 2-4 years ago, my head would have exploded.
You can easily run GLM Air (or other good MoE models) on like a 3080 + system RAM, or even a lesser GPU. You just need the right software and quant.