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Meleagristoday at 3:12 AM6 repliesview on HN

I've been using MiniMax H3 on my M5 Pro 64GB MacBook Pro through ComfyUI. It works extremely well.

I had to modify the default ComfyUI workflows to use a GGUF quant (city96's ComfyUI-GGUF custom node, UnetLoaderGGUF in place of the stock loader) [0].

I use the model labeled Q5_K_M. There is Q8_0 available as well, which is 34GB and fits fine in 64GB unified memory if you keep resolution modest.

The main issue is speed, a ~9-second 480x864 clip at 20 steps takes me a bit over an hour. So this will be cool to try for the speed up alone.

There's a lot of great information and workflows available to follow on the r/StableDiffusion subreddit.

[0] https://huggingface.co/Abiray/MiniMax-H3-GGUF/tree/main/unet


Replies

vimtotoday at 11:14 AM

GGUF is outdated in the latest versions of Comfy-UI. If you want a good balance of size, speed and quality you should use the int8_convrot model from the official Comfy Org Repo https://huggingface.co/Comfy-Org/MiniMax-H3/tree/main/diffus...

thousand_nightstoday at 11:09 AM

> a ~9-second 480x864 clip at 20 steps takes me a bit over an hour

that's rough. for comparison, i tried the exact same parameters on my 5090 RTX and it took 2 minutes to generate.

i believe diffusion models are primarily compute bound so the macs aren't really the ideal hardware for this kind of stuff

antireztoday at 8:00 AM

This implementation is much faster on my M5 Max, like a few minutes for the same video, but on an M5 Max with 128GB, didn't test on M5 Pro. About memory, could be executed on 64GB with a few changes.

show 1 reply
alexgoodharttoday at 5:44 AM

I wonder how much faster your m5 pro is compared to my M1 Max @ 64gb

show 1 reply
jonplacketttoday at 7:24 AM

What is the quality of the output like compared to something like Veo?

Myzuratoday at 8:19 AM

How much free space do you have left after running this llm model? Have you tried to develop your own model with the M5?