Simon Willison reports generating a video on an M5 Max MacBook Pro using a community MLX port of MiniMax's H3 model. The experiment downloaded approximately 115 GB of model files and took just under 45 minutes to generate its output. Those figures describe one run; the download size is not a stated memory requirement.
The experiment builds on the H3 model release, whose official documentation describes downloadable base-model checkpoints for generating video with audio. The account establishes a reported local-running example, while its timing gives a concrete sense of the wait involved in that particular setup.