FLUX.2 Klein 4B Features
Technical specifications and capabilities of FLUX.2 Klein 4B
Explore the full technical specs, supported resolutions, and unique capabilities of FLUX.2 Klein 4B by Black Forest Labs.
Technical Specifications
Detailed specifications for FLUX.2 Klein 4B
| Specification | Value |
|---|---|
| Model Type | Image Generation |
| Provider | Black Forest Labs |
| Max Resolution | 4 MP |
| Aspect Ratios | 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 4:5, 5:4, 21:9, 9:21 |
| Generation Speed | Fast (seconds) |
| Reference Image | Yes |
| Negative Prompt | No |
| Quality Tiers | HD, 2K |
Model Type
Image Generation
Provider
Black Forest Labs
Max Resolution
4 MP
Aspect Ratios
1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 4:5, 5:4, 21:9, 9:21
Generation Speed
Fast (seconds)
Reference Image
Yes
Negative Prompt
No
Quality Tiers
HD, 2K
Model Comparison
See how FLUX.2 Klein 4B compares to other models on Bloom Studio.
| Feature | |  |  |  | | | |  |  |
|---|---|---|---|---|---|---|---|---|---|
| Type | Image | Image | Image | Image | Image | Image | Image | Image | Image |
| Max Resolution | 4 MP | 1792px | 1792px | 1144px | 1.0 MP | 1.0 MP | 1.0 MP | 2.4 MP | 1536px |
| Aspect Ratios | 11 presets | 3 presets | 3 presets | 1 presets | 11 presets | 11 presets | 11 presets | 11 presets | 3 presets |
| Reference Image | — | — | — | — | — | — | |||
| Quality Tiers | HD, 2K | HD | HD | HD | SD, HD | SD, HD | SD, HD | SD, HD | HD |
| Speed | Fast | Standard | Standard | Standard | Fast | Standard | Standard | Fast | Standard |
| Try Now | Learn More | Learn More | Learn More | Learn More | Learn More | Learn More | Learn More | Learn More |
FLUX.2 Klein 4B Capabilities
What makes FLUX.2 Klein 4B stand out.
Up to 2560px
Create images at resolutions up to 2560 pixels on the longest side.
12 Aspect Ratios
Choose from 12 preset aspect ratios including square, portrait, landscape, and ultrawide formats.
By Black Forest Labs
Built by Black Forest Labs. FLUX.2 Klein 4B represents state-of-the-art image synthesis technology.
Image-to-Image
Upload a reference image and generate variations or edits based on it.
How to Use FLUX.2 Klein 4B
Three simple steps to start generating.
Enter your prompt
Describe the image you want to create in natural language.
Select FLUX.2 Klein 4B
Choose FLUX.2 Klein 4B from the model selector and pick your preferred aspect ratio.
Generate & refine
Review your result and iterate on the prompt to perfect the output.
Enter your prompt
Describe the image you want to create in natural language.
Select FLUX.2 Klein 4B
Choose FLUX.2 Klein 4B from the model selector and pick your preferred aspect ratio.
Generate & refine
Review your result and iterate on the prompt to perfect the output.
Other image models
Compare FLUX.2 Klein 4B with other features models.
Related pages
Explore more about FLUX.2 Klein 4B.
Frequently Asked Questions
Everything you need to know about FLUX.2 Klein 4B.
Experience FLUX.2 Klein 4B in action
Explore every capability first-hand. See why creators choose FLUX.2 Klein 4B for professional-quality output.