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FLUX 3 Image Klein: Black Forest Labs releases a 5.6B open-weights image model

Model releases
Source:Hugging Face
FLUX 3 Image Klein is a 5.6B open-weights model for text-to-image generation and editing: one model for prompting, single-reference edits and multi-reference composition, with placement boxes in the prompt. Ships in BF16, FP8 and NVFP4 (5.3GB).
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FLUX 3 Image Klein

Models

A 5.6B open-weights image model for text-to-image, single-reference editing and multi-reference composition in one model, with placement boxes in the prompt. Qwen3-VL-4B text encoder. In BF16 (11.1GB), FP8 and NVFP4 (5.3GB). FLUX Kommunity license (non-commercial + qualified-user exception).

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FLUX.1 [dev]

Models

The most advanced open image model: excellent prompt adherence, solid anatomy, full fine-tuning. The standard for serious work.

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FLUX.1 [schnell]

Models

Very few steps, high quality, and strong text rendering. The distilled FLUX variant, built for speed.

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Black Forest Labs

Organizations

Black Forest Labs (Munich, Germany): founded in 2024 in Freiburg by Robin Rombach and the co-authors of Stable Diffusion, it produces the FLUX models — today's reference for high-quality open image generation. The FLUX models in the catalog are the child resources.

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