Black Forest Labs Flux 2 Klein 4b
Compact 4B Flux diffusion model for fast, high-quality image generation.
Flux 2 Klein 4b is an open-weight image-generation model built by Black Forest Labs. It generates images from a text prompt. It runs entirely on your own hardware through Ollama and GGML: no API key and no per-use fees.
- Released
- Jan 2026
- Pricing
- Free, runs on your hardware
- Text to image rank
- #70
- Image edit rank
- #51
Samples
Generated with Flux 2 Klein 4b via GGML. The same three prompts run against every model in the catalog, first result kept, so the only thing that changes between two models’ tiles is the model.
Materials, reflections, macro detail
Skin texture, lighting, shallow depth of field
Text rendering, layout, flat colour
Black Forest Labs
Black Forest Labs makes the FLUX family of image models — state-of-the-art open-weight image generation.
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