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mzbac/
flux1.kontext.8bit.mlx

Name: flux1.kontext.8bit.mlx
Availability: InStock

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FLUX.1-Kontext 8-bit Quantized for MLX

This is an 8-bit quantized version of the FLUX.1-Kontext-dev model optimized for use with MLX and flux.swift. The model size has been reduced from ~24GB to 17GB while maintaining excellent image-to-image generation quality.

Quantized using flux.swift, a Swift implementation of FLUX models for Apple Silicon.

Model Details

Quantization: 8-bit with group size 128
Total Size: 17GB
Original Model: black-forest-labs/FLUX.1-Kontext-dev
Framework: MLX (Metal Performance Shaders)
Components: Transformer, VAE, CLIP text encoder, T5 text encoder

Usage

This model requires the flux.swift implementation. Please refer to the repository for installation and usage instructions.

Quick Start

bash

# Load and use the quantized model for image-to-image generation
flux.swift.cli \
  --load-quantized-path /path/to/this/model \
  --hf-token YOUR_HF_TOKEN \
  --init-image-path /path/to/input/image.png \
  --prompt "Your transformation prompt here" \
  --output output.png

Recommended Parameters

Steps: 30
Guidance Scale: 3.5
Authentication: Requires Hugging Face token
Input: Requires --init-image-path for image-to-image generation

Example with Parameters

bash

flux.swift.cli \
  --load-quantized-path /path/to/this/model \
  --hf-token YOUR_HF_TOKEN \
  --init-image-path ./reference.png \
  --prompt "transform this into a watercolor painting with soft pastel tones" \
  --steps 30 \
  --guidance 3.5 \
  --width 512 \
  --height 512 \
  --seed 42 \
  --output watercolor_painting.png

License

This model is a quantized version of FLUX.1-Kontext-dev, which is licensed under the FLUX.1 [dev] Non-Commercial License. Please review the original license terms:

Original model: https://huggingface.co/black-forest-labs/FLUX.1-Kontext-dev
License: https://huggingface.co/black-forest-labs/FLUX.1-dev/blob/main/LICENSE.md
Commercial licensing available at: https://bfl.ai/pricing/licensing

Performance

Memory Usage: Reduced from ~24GB to 17GB
Quality: Excellent preservation of image-to-image generation quality
Platform: Optimized for Apple Silicon Macs

Citation

bibtex

@misc{flux-kontext,
  author = {Black Forest Labs},
  title = {FLUX.1-Kontext-dev},
  publisher = {Black Forest Labs},
  year = {2024},
  url = {https://huggingface.co/black-forest-labs/FLUX.1-Kontext-dev}
}

@software{flux-swift,
  author = {mzbac},
  title = {flux.swift: Swift implementation of FLUX models},
  url = {https://github.com/mzbac/flux.swift},
  year = {2024}
}

mzbac/flux1.kontext.8bit.mlx