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FLUX.1-Fill-dev

FLUX.1-Fill-dev is Black Forest Labs' inpainting model built on the FLUX.1 diffusion architecture. It fills masked regions conditioned on surrounding image context and an optional text prompt. The dev (non-distilled) variant trades slower inference for higher generation quality. Non-commercial license — not suitable for production products without licensing.

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From the model card

Fields below are copied from the tags and counters on the HuggingFace repository black-forest-labs/FLUX.1-Fill-dev at our last fetch. They are set by the uploader, not verified by us; rows with no tag are omitted. How this page is made.

Publisher (HF namespace)
black-forest-labs
Library
Diffusers
Weight formats
safetensors
License tag
other — read the license file in the repo before relying on it
Language tags
English (en)
Downloads (HF counter at last fetch)
370,584
Likes (HF counter at last fetch)
1,132
Model card
https://huggingface.co/black-forest-labs/FLUX.1-Fill-dev

Use cases

  • Object removal and background replacement in images
  • Text-guided region filling for creative image editing
  • Repairing corrupted or intentionally masked image areas
  • Controlled region synthesis for dataset augmentation in research

Pros

  • FLUX architecture produces high-fidelity fill results relative to earlier diffusion inpainters
  • Strong community adoption — over 1,100 likes reflects broad real-world validation
  • Supports both text-conditional and context-only inpainting modes

Cons

  • Non-commercial license — cannot be used in production products without separate licensing from BFL
  • Dev variant requires many inference steps — significantly slower than distilled FLUX variants
  • Large model size and high GPU memory requirements typical of the FLUX architecture

Tags

diffuserssafetensorsimage-generationfluxdiffusion-single-fileenlicense:otherdiffusers:FluxFillPipelineregion:us