- New dev-bnb-nf4-v2 steps 👻

[danilomaiaweb]

I was testing a merged version of schnell+dev and was getting good results with only 4 steps and an average of 18s to generate each image.

Now I'm testing this new version dev-bnb-nf4-v2 and I only get reasonably good images with 10 steps, which takes up to 50s to generate the image.

A significant increase in generation time.

How many steps are you using this new version to get a reasonable image?

My setup is:
Windows 11 Pro
AMD64 Rayzen 5 3500X
RTX 3050 8GB
32GB RAM
Latest Forge version f2.0.1v1.10.1-previous-252-g00f1cd36
Python 3.10.6
Torch 2.3.1+cu121
Cuda 12.1
Cudnn 8907
Diffusers 0.29.2
Transformers 4.44.0

Please leave your comments
How many steps are you using with dev-bnb-nf4-v2

Thank in advance
Best regards
Brazil

[pflky]

You would do 20 steps or more. It's not a low step model. Using the beta scheduler can help too.

[danilomaiaweb]

You would do 20 steps or more. It's not a low step model. Using the beta scheduler can help too.

Please see the model merged with 6 steps:

The result:

[danilomaiaweb]

With 4 steps in model FLUX1-SchnellDev-Merged-fp8-4step.safetensors:

Generation in 24s:

Result: