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- diffusion-single-file
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pipeline_tag: image-to-image
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# flux1-kontext-dev-fp8
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## Model Overview
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##
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3. Select the FP8 model in your ComfyUI workflow as you would with standard weights.
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## Credits
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- Original model by [black-forest-labs](https://huggingface.co/black-forest-labs)
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# License
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This model falls under the [FLUX.1 \[dev\] Non-Commercial License](https://github.com/black-forest-labs/flux/blob/main/model_licenses/LICENSE-FLUX1-dev).
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# Citation
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```bib
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@misc{labs2025flux1kontextflowmatching,
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title={FLUX.1 Kontext: Flow Matching for In-Context Image Generation and Editing in Latent Space},
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author={Black Forest Labs
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year={2025},
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eprint={2506.15742},
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archivePrefix={arXiv},
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- diffusion-single-file
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pipeline_tag: image-to-image
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# flux1-kontext-dev-fp8
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FP8-quantized weights for [FLUX.1-Kontext-dev](https://huggingface.co/black-forest-labs/FLUX.1-Kontext-dev) diffusion models. Supports both E4M3FN and E5M2 formats.
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## Model Overview
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- **Base Model**: [FLUX.1-Kontext-dev](https://huggingface.co/black-forest-labs/FLUX.1-Kontext-dev) (diffusion model component)
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- **Quantization**: Per-tensor dynamic quantization to FP8 (E4M3FN/E5M2)
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- **Size Reduction**: ~40% smaller than original weights
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- **Model Scope**: This is **only the diffusion_model** component (not full pipeline), should be placed in ComfyUI's `diffusion_models` directory
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- **Compatibility**:
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- ✅ ComfyUI (with PyTorch 2.4+ and CUDA 12.4+)
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- ❌ Diffusers (currently unsupported)
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## Available Files
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- `flux1-kontext-dev-fp8-e4m3fn.safetensors` - Balanced performance/accuracy
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- `flux1-kontext-dev-fp8-e5m2.safetensors` - Higher throughput on Hopper GPUs
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## Usage
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1. Move the `.safetensors` file to your ComfyUI `diffusion_models` directory
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2. Select fp8 modes in UNet Loader like `fp8_e4m3fn`.
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## Known Limitations
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1. Not compatible with standard Diffusers pipelines
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2. Requires patched PyTorch versions for optimal performance
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## License
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This model is distributed under the [FLUX.1(dev) Non-Commercial License](https://github.com/black-forest-labs/flux/blob/main/model_licenses/LICENSE-FLUX1-dev). Commercial use prohibited without authorization.
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## Citation
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```bib
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@misc{labs2025flux1kontextflowmatching,
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title={FLUX.1 Kontext: Flow Matching for In-Context Image Generation and Editing in Latent Space},
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author={Black Forest Labs et al.},
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year={2025},
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eprint={2506.15742},
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archivePrefix={arXiv},
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