Pixart Sigma - Low VRAM & SDXL+ Resolutions in ComfyUI for Free!

Pixart Sigma was released recently, and while the main repo takes a little tweaking to run nicely on 24GB VRAM, ComfyUI comes to the rescue making it easy to run in just 6 GB!

Like with ELLA, T5 encodings replace CLIP leading to increased prompt adherence. Inthis video I show you how to get going for FREE in ComfyUI, and compare SDXL vs Pixart Sigma.

All this without one of those SD3 “no commercial use” licenses!

Want to support the channel? Get PixArt workflows and more!

Links

== More Stable Diffusion Stuff! ==

[MrSporf]

Wow. I'm impressed. The prompt understanding is something else - quite amazing!

[swannschilling]

Catching up on some stuff! Thanks Nerdy! 😊

[steffen_r]

Thx for sharing. The demo looks promising and the model has a good understanding of prompts.

[eqrfhqs]

Ah, so that's why I couldn't load the model in comfy! Thanks - you cleared up where I was going wrong with the custom node install.

[valerymoyseenko]

Thanks buddy! Especially caught your words that PixArt generates more different faces than SD. These identical smiling cute ladies with almond-shaped features are already starting to get annoying, and it has not even been a year. I have installed PixArt at my place, I'm studying it now, but the first results are impressive.

[Armaan]

do you have a workflow which has pixart and controlnet and ipadapter?

[AI_Creatives_Toolbox]

Thanks for the great content! What I wasn't sure about was if I already have comfyui Install up and running, can I just skip the preparation step and move directly to step two? Thanks!

[harshitpruthi]

i am trying to do some experiments, will it work with either ipadapter or faceid, have anyone tried it

[zerorusher]

Since Stable diffusion 3 weight will probably never be released (or at least delayed until stability AI has something much better) its very nice to see new open models emerging!

[bebeno]

I wish we could convert any fine-tune sdxl model to T5 encoder like juggernaut that would be amazing

[WatchNoah]

what linux distro are you using / can recommend?

[shareeftaylor]

Hey can u please make a video on how to add high res fix script to pixart sigma I found a sd1.5 pixart workflow thar works on cpu its called Abominal spaghetti workflow I saw the sd1.5 ksampler but I want to add it to thar but the efficiency ksampler doesn't have the start step and end step nodes so I can't add it to the workflow this hrf helps alot with low res images

[PhilipBrownEsq]

came for pixart, stayed for the outro.

wait.. i guess.. I left after the outro?
well, at least it got you a like, then !

[fredmcveigh]

Hey Nerdy. I respect your opinion and you haven't said anything about SD3. Please let us know what you think of it and the fact it doesn't seem to be open source anymore.

[WhatsThisStickyStuff]

This uses SDXL components but isnt actually sdxl right? Like we cant use sdxl control nets or anything

[JustFor-dqwc]

This new model is great. Thanks Rodent!
.git directory in have extra 20 GB. Can be deleted.

[lurker]

Better to test native Sdxl the models like zavychromal are trained by users in one direction they prefer. Zavy does better with real ppl and models i think.

[phongtranletat]

But I see you use CPU to run, not GPU to run.

[CapsAdmin]

I'd guess they are samey on sdxl because you are using a community model. I think it would be fair if you used the base model, at least in addition.

[ngones]

I feel super sad when I see something very cool and is Cuda
dependent, fuck AMD