Please note: this is not a full LTX workflow and cannot generate videos on its own.

So I sort of worked out an easy, if slightly janky, way to change the manual sigma values for the distilled versions of LTX 2.3. My intent was merely to adjust the sampler step count so I could squeeze out a little more quality without jumping all the way up to the dev model, but it turns out this method can also produce values which mimic other schedulers, which has been rather interesting to play with.

Now for it's intended purpose of adjusting steps, it wound up making virtually no difference to quality, so don't expect this to magically fix LTX's shortcomings. That said, I certainly haven't tried every mixture of sampler and scheduler, so maybe there's some combination which will actually improve things. But, despite how I categorized it, I'd still think of this less as a tool and more as a toy.

Instructions are included via notes in the workflow. And I actually do have the slightest idea what I'm doing this time, so I can (probably) answer any questions here as well.

The required custom nodes are:

ComfyUI-GGUF (if using a GGUF model): https://github.com/city96/ComfyUI-GGUF

RES4LYF: https://github.com/ClownsharkBatwing/RES4LYF

As ever, feel free to repurpose/expand upon/incorporate/whatever this workflow in any way you might wish.