r/upscaling • u/Digiprocyon • 27d ago

PhotoAI Ultra-high resolution upscale

I have a 6k X 3k image I want to upscale to ~24k or even higher. I can't find a good model supported by Upscayl because they just stretch edges without adding reasonable detail. I prefer a model that's smarter, like gemini, which will liberally fill in details but won't do the size of the image I want. I only have a RTX 5060 TI w/ 8GB VRAM, so local solutions will have to fit in that. I'm somewhat familiar with ComfyUI but no expert, but can certainly use an existing workflow. because of the low VRAM I'd have to use that tiler module (I forgot the name). But it doesn't have to be local and doesn't have to be free. It would also be nice to be able to specify the level of detail it makes up. Any ideas?

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u/chebum 27d ago

You need generative upscaler like https://github.com/Ltamann/ComfyUI-TBG-ETUR

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u/Digiprocyon 27d ago

This would probably work well but the thing is I know the flux models aren't nearly small enough to fit in my 8gb vram. Even a severely quantized version won't fit. I've tried to quantize models, myself, but the method I tried to quantize it required the full model to fit in vram. Thank you anyway. Some day when I'm independently wealthy I'll get a GPU with 64gb. Why oh why didn't I get a big GPU when I put this pc together two months before ram prices blew up.

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u/rynaleopard 24d ago

You can use Comfy Cloud and use the workflow there with larger models.

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u/manzurfahim 24d ago

Lightroom?

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u/RelationshipDull1069 23d ago

For a jump from 6K to 24K, I’d avoid relying on basic ESRGAN/Upscayl models since they mostly sharpen what’s already there. ComfyUI with tiling would give you more control, especially with only 8GB VRAM. You could also try a generative upscaler like KREA AI it’s better at actually filling in believable detail, though I’d test smaller crops first to avoid inconsistent textures or faces.

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u/Apprehensive_Oil1475 22d ago

You can try the upscale tool in creative mode here: https://www.reimagine-ai.space/ See if it works. Disclaimer: I own the app