ComfyUI Tutorial Series: Ep08 - Flux 1: Schnell and Dev Installation Guide

Welcome to Episode 8 of our ComfyUI tutorial series! In this episode, we're exploring FLUX, a new model from Black Forest Labs. I'll walk you through installing and using the different versions, like Dev and Schnell, while comparing their performance and highlighting the best settings. Discover which model works best for your needs and how to integrate FLUX into your workflow.

We’ll also share some tips and tricks to help you get the most out of FLUX, ensuring smooth and efficient results. Check out the description for all the links and resources you'll need to follow along!

Download all the workflows from the pixaroma-workflows channel on Discord. The links are also organized there.
discord.gg/gggpkVgBf3

Flux Examples
comfyanonymous.github.io/ComfyUI_examples/flux/

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Download Flux Schnell fp8 from here (Faster)
huggingface.co/Comfy-Org/flux1-schnell/tree/main
Place it in the folder: ..ComfyUI/models/checkpoints/

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Download Flux Dev fp8 from here (Better Quality)
huggingface.co/Comfy-Org/flux1-dev/tree/main
Place it in the folder: ..ComfyUI/models/checkpoints/

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Download Flux Dev Full from here (The Best Quality)

huggingface.co/black-forest-labs/FLUX.1-dev/blob/m…
Place it in the folder: ..ComfyUI/models/unet/

Download clip_l.safetensors and t5xxl_fp16.safetensors
from here
huggingface.co/comfyanonymous/flux_text_encoders/t…
Place them in the folder: ..ComfyUI/models/clip/

Download the ae.safetensor VAE from here huggingface.co/black-forest-labs/FLUX.1-schnell/bl…
Place it in the folder: ..ComfyUI/models/vae/

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Download this version of schnell with bnb in name
flux1-schnell-bnb-nf4
huggingface.co/silveroxides/flux1-nf4-weights/blob…

Or this version of Dev
flux1-dev-bnb-nf4
huggingface.co/lllyasviel/flux1-dev-bnb-nf4/blob/m…

Place them in the ..ComfyUI\models\checkpoints folder

The node you need - more info in the video and on discord
github.com/comfyanonymous/ComfyUI_bitsandbytes_NF4

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Realism Lora for Flux Dev
Download this small Lora model
huggingface.co/comfyanonymous/flux_RealismLora_con…

Place it in ..\ComfyUI\models\loras
Restart ComfyUI.

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Test Flux online. You have a few free generations on these websites:

FLUX.1 [schnell]
huggingface.co/spaces/black-forest-labs/FLUX.1-sch…

FLUX.1 [dev]
huggingface.co/spaces/black-forest-labs/FLUX.1-dev

FLUX.1 [schnell]
replicate.com/black-forest-labs/flux-schnell

Post your questions on the discord server on the ComfyUI channel or on Pixaroma Community on facebook www.facebook.com/groups/pixaromacommunity/
#comfyui #flux #aitutorials
Chapters:
00:00 Introduction to FLUX Models
00:22 FLUX Versions (Pro, Dev, Schnell)
02:14 Installing FLUX Dev and Schnell FP8
08:14 Add A1111 Art Styles in Flux
11:01 Comparing Dev vs. Schnell FP8
15:14 Fixing Blurred Images
15:50 Installing FLUX Dev Full
18:31 Comparing Dev Full vs. Dev FP8
20:10 Installing Flux BNB NF4 Dev and Schnell
23:44 Comparing Dev FP8 vs. Dev NF4
25:16 Using LoRA with FLUX Dev
27:34 Summary and Best Practices