Bonus: Flux "Negative Prompt" at CFG 1.0 (Patreon)

Many of us have become used to using a negative prompt when generating images using Stable Diffusion, so going back to CFG 1.0 and not using a negative prompt can feel a bit like losing a favourite tool of some sort

There is a newer version out which I haven't actually tried as yet, but hopefully it (or others) can do much the same thing!

Anyway, the thing I've been testing is with using Automatic CFG as it has interesting controls for sigmas. I'd found ending somewhere around 0.8->0.9 typically did the trick, but then I also noticed the "For magic" preset could also be used and wasn't such a large node as the advanced one :)

You might have seen people using a CFG > 1, so the advantage with using magic here is that we don't get such a massive speed loss.

But does it work? Well... sort of ? I've tested a number of simple words like as hair colours and such like, and there is certainly some change. Single words along the lines of "red" or green" appears to drastically reduce those colours.

Examples

This negative is "blonde hair"

This negative is "brown hair":

This negative is "brown hair", but with the "magic" node disabled - i.e. no negative:

Performance-wise, when using the "negative", it's only slightly slower, with around 1s difference:

Node

More info on the Automatic CFG node is here:

"Older one": https://github.com/Extraltodeus/ComfyUI-AutomaticCFG

"Newer one": https://github.com/Extraltodeus/Skimmed_CFG

Workflow

JSON file attached to this post as usual :)