Flux.1 Kontext Dev GGUF
I'm excited to share that the Flux.1 Kontext Dev GGUF model is now available on Hugging Face. I've created a simple, free custom low VRAM workflow to help you get started with the model using as little as 4GB of VRAM.
✓ 100% free — download the workflow and run it locally.Requirements
- ComfyUI (portable or desktop), updated to a recent build
- GGUF builds are included — pick the quantisation that fits your VRAM
- 5 custom node(s), listed below
- NVIDIA GPU recommended; see the notes for model-specific VRAM guidance
Model downloads
- Flux.1 Kontext Dev GGUF Model https://huggingface.co/bullerwins/FLUX.1-Kontext-dev-GGUF/tree/main
- Flux.1 Kontext Dev FP8 Model https://huggingface.co/Comfy-Org/flux1-kontext-dev_ComfyUI/tree/main/split_files/diffusion_models
- T5 XXL & CLIP L Models https://huggingface.co/comfyanonymous/flux_text_encoders/tree/main
- 2X Lexica Upscaler and Kontext VAE Model https://huggingface.co/Thelocallab/2xLexicaRRDBNet_Sharp/tree/main
Custom nodes
- ComfyUI Manager Command to install requirements:.\python_embeded\python.exe -m pip install -r .\ComfyUI\custom_nodes\ComfyUI-Manager\requirements.txt https://github.com/ltdrdata/ComfyUI-Manager
- Detail Daemon https://github.com/Jonseed/ComfyUI-Detail-Daemon
- ComfyUI GGUF https://github.com/city96/ComfyUI-GGUF
- Project GitHub: For technical details, updates, and documentation, visit the project’s GitHub repository. https://github.com/black-forest-labs/flux
- ComfyUI Github https://github.com/comfyanonymous/ComfyUI.
Setup steps
- Download the 4 model file(s) listed below and place each one into their ComfyUI model folders.
- Install the 5 custom node(s) listed below via ComfyUI Manager, then fully restart ComfyUI.
- Download the workflow .json from the button above and drag it onto the ComfyUI canvas.
- Open each loader node and confirm the model files are selected — a fresh install often defaults to the wrong one.
- Run the workflow. If a node shows red, update ComfyUI and restart before troubleshooting anything else.
More resources
- https://www.patreon.com/posts/132506287
- Community Support: For troubleshooting or to connect with other users, join the Discord server. https://discord.gg/5hmB4N4JFc
- YouTube Tutorial Video https://youtu.be/u9u5UvV1S28
Want the 1-click version?
Skip the manual model downloads and node installs — get a ready-to-run installer, or unlock all 75+ with Local Lab Pro.