flux-2-klein-4b: Fast Text-to-Image Generation
flux-2-klein-4b is a cutting-edge model for text-to-image generation, optimized for speed and production use. With sub-second inference, it creates high-quality visuals from simple prompts or by enhancing your own images. Flexible aspect ratios, output formats, and quality settings ensure you get the exact results you need. Effortlessly turn ideas into visuals for design, marketing, or creative projects. Choose between rapid generation for quick drafts or fine-tuned outputs for final assets—all with robust safety controls and reproducible results.
Official
Black Forest Labs
11.2k runs
Flux 2 Klein 4b
2026-01-15
Commercial Use
![A surreal underwater or cosmic garden scene with bioluminescent flora against a deep navy blue to black background. Delicate, feather-like structures in pale icy blue and white emerge from the left side, resembling ethereal ferns or coral fronds with intricate fractal patterns. These luminous fronds transition into a cloud-like dispersal of particles and spores floating through the dark space, creating a dreamy, ethereal atmosphere. On the right side, dense clusters of vegetation in deep greens, blues, and purple-pink tones form an organic canopy. The foliage includes pine-like needles, flowering bushes in blue and magenta hues, and various plant forms creating depth and texture. Small glowing particles and orbs of light are scattered throughout the scene like floating pollen or bioluminescent plankton. The overall composition creates a mystical, otherworldly environment that blends elements of deep sea bioluminescence with alien botanical landscapes. Cinematic lighting with cool color palette dominated by blues, teals, and deep greens. Photorealistic rendering with soft focus effects and atmospheric depth. With large white text in the center: "FLUX.2 [klein] 4B"](/nextImageExportOptimizer/7913329106022800-opt-1080.WEBP "A surreal underwater or cosmic garden scene with bioluminescent flora against a deep navy blue to black background. Delicate, feather-like structures in pale icy blue and white emerge from the left side, resembling ethereal ferns or coral fronds with intricate fractal patterns. These luminous fronds transition into a cloud-like dispersal of particles and spores floating through the dark space, creating a dreamy, ethereal atmosphere. On the right side, dense clusters of vegetation in deep greens, blues, and purple-pink tones form an organic canopy. The foliage includes pine-like needles, flowering bushes in blue and magenta hues, and various plant forms creating depth and texture. Small glowing particles and orbs of light are scattered throughout the scene like floating pollen or bioluminescent plankton. The overall composition creates a mystical, otherworldly environment that blends elements of deep sea bioluminescence with alien botanical landscapes. Cinematic lighting with cool color palette dominated by blues, teals, and deep greens. Photorealistic rendering with soft focus effects and atmospheric depth. With large white text in the center: \"FLUX.2 [klein] 4B\"")
