Small 5.6B open image generation/editing model with 4K support and bounding box control, available in ComfyUI under a non-commercial community license. The creator's tests showed bad faces and anatomy, so he passes on it.
FLUX 3 Image Klein
5.6B-parameter open-weights model from Black Forest Labs for image editing, text-to-image and multi-reference composition.
Updated EU status checked Last shown
FLUX 3 Image Klein at a glance
- What is FLUX 3 Image Klein?
- FLUX 3 Image Klein is a model from Black Forest Labs. 5.6B-parameter open-weights model from Black Forest Labs for image editing, text-to-image and multi-reference composition.
- Who makes FLUX 3 Image Klein?
- FLUX 3 Image Klein is made by Black Forest Labs.
- Does FLUX 3 Image Klein work in the EU?
- Available in the EU. Weights are downloadable without a regional restriction, and BFL's terms of service reference GDPR compliance and EU consumer rights. No EU exclusion was found. Last verified 14 Nov 2026.
- How much does FLUX 3 Image Klein cost?
- Open source. Weights downloadable for free under the Hugging Face license; commercial license required for product use and self-hosted deployment at scale. BFL API is pay-as-you-go with no subscription. Licence: Non-commercial community license (commercial license available).
- Where was FLUX 3 Image Klein shown?
- In 2 creator videos by AI Search, Matt Wolfe. Most recently by AI Search on 18 Oct 2026, at 19:13 in “Quantum breakthrough, Gemini 4 Argon, MOSS Image, KLING 4, OpenAI spy, Muse Wonder: AI NEWS”.
Sources: the vendor's own pages (linked above) and creator videos at the linked timestamps. EU status is information, not legal advice; see how we check.
FLUX 3 Image Klein is a 5.6B-parameter image model from Black Forest Labs. A single set of weights handles instruction-based image editing, text-to-image generation, and composition from up to ten reference images. It also supports layout control with bounding boxes, where each element gets a box and a description on a 0–1000 grid.
BFL releases an undistilled version for fine-tuning and research and a distilled version for fast editing and generation. The model is designed to run on a single consumer GPU. Output up to 4K is available through the BFL API. It is meant to be used with a prompt upsampler, which is included automatically in the API and available separately for self-hosted use.
Weights and the prompt upsampler are downloaded from Hugging Face and can be run in ComfyUI or a custom pipeline. They are released under the license on the Hugging Face model card. BFL states that running Klein in a product requires a commercial license for self-hosted deployment at scale. One YouTube reviewer described the license as non-commercial community and reported weak faces and anatomy in his tests.
- Instruction-based image editing
- Text-to-image generation
- Multi-reference composition with up to ten reference images
- Bounding-box layout control
- 5.6B parameters, runs on a single consumer GPU
- Undistilled and distilled variants; API output up to 4K
As seen on YouTube
Watch the moment: the exact second top creators show it. Videos load only when you press play, via youtube-nocookie.com.
Open-weight image model with weights on Hugging Face. It runs on consumer GPUs like an RTX 4070 and on a DGX Spark, and can be tried free on Spaces. The creator found it decent but not special apart from being open.
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