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NewsBlack Forest Labs Releases FLUX.1 Krea [dev] Open Source Version with ComfyUI Native Support

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08/21/2025

Black Forest Labs Releases FLUX.1 Krea [dev] Open Source Version with ComfyUI Native Support

Black Forest Labs and Krea collaboration officially releases the FLUX.1 Krea [dev] model! This is a brand new text-to-image generation model that focuses on unique aesthetic styles and natural details, avoiding common “AI look” issues. The model is open-sourced under the flux-1-dev-non-commercial-license and is currently the best open-source FLUX model.

ComfyUI has now implemented native support for FLUX.1 Krea [dev] on Day 1! You can now directly experience the text-to-image generation technology brought by FLUX.1 Krea [dev] in ComfyUI. The model adopts a fully compatible architecture design with FLUX.1 [dev], providing exceptional realism and image quality.

I have completed the official native version tutorial in ComfyUI’s official documentation, which includes complete workflow setup and model installation guides.

FLUX.1 Krea [dev] Model Features

  • Unique Aesthetic Style: Focuses on generating images with unique aesthetics, avoiding common “AI look” appearance
  • Natural Details: Does not produce blown-out highlights, maintaining natural detail representation
  • Exceptional Realism: Provides outstanding realism and image quality
  • Fully Compatible Architecture: Fully compatible architecture design with FLUX.1 [dev]
  • Best Open Source Model: Currently the best open-source FLUX model, specifically designed for text-to-image generation

FLUX.1 Krea [dev] Technical Advantages

Unique Aesthetic Design Philosophy The FLUX.1 Krea [dev] model focuses on generating images with unique aesthetics, avoiding common “AI look” issues found in traditional AI-generated images. The model pays special attention to natural detail representation during training, avoiding blown-out highlights and maintaining natural detail performance.

Exceptional Image Quality Compared to other FLUX models, FLUX.1 Krea [dev] has achieved significant improvements in image quality. The model provides outstanding realism and image quality, capable of generating more natural and realistic image content.

Fully Compatible Architecture Design FLUX.1 Krea [dev] adopts a fully compatible architecture design with FLUX.1 [dev], ensuring seamless integration with the existing FLUX ecosystem. Users can directly use the new model based on existing FLUX workflows.

Model Version and Download

Official Model Version

ComfyUI Support for FLUX.1 Krea [dev]

ComfyUI, as a leading AI image generation workflow platform, has implemented complete native support for FLUX.1 Krea [dev]. Users can directly use various features of FLUX.1 Krea [dev] in ComfyUI, including:

  • Text-to-Image Generation: Generate high-quality images through simple text descriptions
  • Unique Aesthetic Style: Generate image content with unique aesthetics
  • Natural Detail Performance: Avoid blown-out highlights, maintain natural details
  • High-Quality Output: Provide exceptional realism and image quality

ComfyUI’s node-based workflow design makes the use of FLUX.1 Krea [dev] more flexible and efficient, allowing users to easily combine different parameters and settings to achieve optimal generation results.

Model License and Usage

The FLUX.1 Krea [dev] model is released under the flux-1-dev-non-commercial-license, and users need to comply with the corresponding usage terms.

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