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---
license: other
language:
- en
pipeline_tag: text-to-image
tags:
- flux
- flux.1
- flux.1-schnell
- flux.1-dev
- flux-merge
- merge
library_name: diffusers
---

[Also on CivitAI](https://civitai.com/models/630820)

Merge of Schnell and Dev variants of the Flux.1 model, almost all block are set to different ratios so it's not a perfect proportion of each model.

Recommended 4-8 steps.

----

# Important

**All in one versions** include VAE + CLIP + T5XXL (fp8). 

**UNET versions** (Model only) need Text Encoders and VAE, downloads:
- Text Encoders: https://huggingface.co/comfyanonymous/flux_text_encoders/tree/main
- VAE: https://huggingface.co/black-forest-labs/FLUX.1-schnell/tree/main/vae

**GGUF versions (Q4, Q5, Q8)** require a custom node to work in comfy: https://github.com/city96/ComfyUI-GGUF

**BNB versions (NF4, FP4)** require a custom node to work in comfy:

- All in one versions: https://github.com/comfyanonymous/ComfyUI_bitsandbytes_NF4
- UNET versions: https://github.com/DenkingOfficial/ComfyUI_UNet_bitsandbytes_NF4

----

# Weights version comparison
- *"Extreme closeup, frog face, star crystal structure, intricate designs, glowing hues. Extreme depth of field, celestial light, shimmering details, otherworldly charm, majestic elegance."*
- Test parameters: 8 Steps, CFG 3.5, 1536x1536, seed 0

![Comparison](./FluxFusionDS_Samples/fusion1.png)

# Samples schnell-fusion-dev (fp8-e4m3fn)
![](./FluxFusionDS_Samples/1.png)
![](./FluxFusionDS_Samples/2.png)
![](./FluxFusionDS_Samples/3.png)
![](./FluxFusionDS_Samples/4.png)
![](./FluxFusionDS_Samples/5.png)

# Samples comparing Fusion versions
![](./FluxFusionDS_Samples/fusion2.png)
![](./FluxFusionDS_Samples/fusion3.png)
![](./FluxFusionDS_Samples/fusion4.png)
![](./FluxFusionDS_Samples/fusion5.png)
![](./FluxFusionDS_Samples/fusion6.png)