FLUX.2 [klein] 4B is a compact 4B-parameter text-to-image model from Black Forest Labs that delivers fast generation with quality results. Supports flexible sizing and JPEG, PNG, and WebP outputs.
Added Jan 15, 2026
Approx. Price
$0.010 per image
Model Type
text-to-image
Preview Examples
3
Generation controls available for this model.
Images Per Run
Up to 4
Resolution Options
6
1024*1024 (Square (1024x1024)), 1280*720 (Landscape (1280x720)), 720*1280 (Portrait (720x1280)) +3 more
Tunable Settings
4
Custom Resolution
Number of Images
Default
1
Resolution
Default
1024*1024
Options (6)
1024*1024 (Square (1024x1024)), 1280*720 (Landscape (1280x720)), 720*1280 (Portrait (720x1280)), 1536*1024 (Wide (1536x1024)) +2 more
Seed
Default
-1
Control reproducibility (-1 for random).
Human preference benchmarks sourced from Artificial Analysis.
Text to Image
#71 / 127
ELO
1072.0
Appearances
4,975
95% CI
-9/9
Image Editing
#38 / 57
ELO
1107.0
Appearances
5,240
95% CI
-9/9
Release Date 2026-01 · Matched as FLUX.2 [klein] 4B
Artificial Analysis API
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. Scattered across the dark space are organic, luminescent spheres like floating dandelion seeds or alien spores, emitting soft cyan-white glows. The composition evokes a sense of quiet mystery and alien beauty, blending elements of deep sea creatures and fantastical plant life.
1024x1024
Soaking wet tiger cub taking shelter under a banana leaf in the rainy jungle, close up photo
1024x1024
A group of baby penguins in a trampoline park, having the time of their lives, 80s vintage photo
1024x1024
