Sub-Second Generation — Up to 4 Megapixels

FLUX.2 [klein]Compact Power, Lightning Speed

Small in name, massive in capability. FLUX.2 [klein] delivers studio-quality image generation and editing in under half a second. Built on Black Forest Labs' rectified flow transformer, it's the perfect balance of speed, quality, and efficiency.

<0.5s Inference
4 Megapixel Output
Consumer GPU Friendly

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Editing Instructions

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Output Size
Output: 1024 × 1024px

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Result

Red Panda AI

Your creation awaits

Upload an image and describe your changes to see the AI magic happen

Generation + Editing, Unified

Unlike traditional models that separate generation and editing, FLUX.2 [klein] handles both in a single, streamlined architecture. Create from scratch or refine existing images—all with the same blazing-fast model.

  • Text-to-image generation
  • Multi-reference image editing
  • Style and character consistency
  • Any aspect ratio support
⚡
<0.5s

Average generation time

4-step inference
Distilled

Small Model, Big Capabilities

"Klein" means "small" in German—but don't let the name fool you. This compact powerhouse delivers features that rival models many times its size.

Sub-Second Speed

Generate images in under 0.5 seconds with 4-step distilled inference. Real-time creative workflows are finally possible.

4 Megapixel Output

Generate high-resolution images up to 4MP with any aspect ratio. From square thumbnails to ultra-wide panoramas.

Multi-Reference Input

Blend up to 4 reference images for style transfer, character consistency, or creative composition. Your references, your vision.

Consumer GPU Ready

The 4B model runs on ~13GB VRAM—perfect for RTX 3090, 4070, or similar. No data center required.

Quantization Support

FP8 and NVFP4 quantization options for even faster inference (up to 2.7×) and lower VRAM usage (up to 55% savings).

Apache 2.0 License

The 4B variant is fully open source under Apache 2.0. Use it commercially, fine-tune it, deploy it locally—no restrictions.

Choose Your [klein]

Four variants to match your needs—from ultra-fast distilled models to full-capacity base versions for fine-tuning.

Apache 2.0

4B Distilled

The speed champion. Perfect for real-time applications and consumer hardware.

  • 4 billion parameters
  • 4-step inference
  • ~13 GB VRAM
  • Commercial use allowed
Apache 2.0

4B Base

Full capacity for fine-tuning and maximum output diversity.

  • 4 billion parameters
  • Full inference steps
  • ~9-10 GB VRAM
  • Ideal for fine-tuning
Non-Commercial

9B Distilled

Higher quality with blazing speed. Research and personal projects.

  • 9 billion parameters
  • 4-step inference
  • ~24 GB VRAM
  • FLUX NCL License
Non-Commercial

9B Base

Maximum quality and diversity for demanding research applications.

  • 9 billion parameters
  • Full inference steps
  • ~21.7 GB VRAM
  • Best for fine detail

From Prompt to Image in a Flash

FLUX.2 [klein] makes image creation effortless. Describe your vision, watch it materialize, and download—all before you can finish your coffee.

1

Describe Your Vision

Enter your prompt or upload reference images. Be as detailed or minimal as you like.

2

Lightning Generation

FLUX.2 [klein] processes your request in under half a second. Watch the magic happen.

3

Download & Use

Get your high-resolution image instantly. No watermarks, no waiting, no limits.

Built for Real-Time Creativity

Sub-second generation opens up workflows that were impossible before. Here's where [klein] shines.

Interactive UI

Build AI-powered creative tools with instant feedback. Users see results as they type.

Mobile Apps

Deploy on-device or edge servers for responsive mobile AI experiences.

Rapid Iteration

Explore hundreds of variations quickly. Perfect for brainstorming and concept development.

Batch Processing

Generate thousands of images cost-effectively. Low latency + low cost = high volume.

Content Creation

Create social media visuals, thumbnails, and marketing assets at the speed of thought.

Local Deployment

Run entirely on your hardware with Apache 2.0 license. Full control, no API dependencies.

Technical Specifications

Under the Hood

FLUX.2 [klein] is built on Black Forest Labs' rectified flow transformer architecture, optimized for speed without sacrificing quality.

  • Rectified Flow Transformer

    Unified architecture for both generation and editing tasks.

  • Step Distillation

    4-step inference reduces generation time to sub-second speeds.

  • FP8 / NVFP4 Quantization

    Up to 2.7× faster inference and 55% VRAM savings with quantization.

  • Multi-Reference Support

    Blend up to 4 reference images for consistent style and character.

Model Specifications

Parameters4B / 9B
Max Resolution4 Megapixels
Inference Steps4 (distilled)
Reference ImagesUp to 4
DeveloperBlack Forest Labs

Pro Tip

For the fastest results, use the 4B distilled variant with FP8 quantization. You'll get sub-0.3 second generation times on modern GPUs while keeping quality remarkably high.

Frequently Asked Questions

Everything you need to know about FLUX.2 [klein].

What does "klein" mean?
"Klein" is German for "small." FLUX.2 [klein] is Black Forest Labs' compact model variant, optimized for speed and efficiency while maintaining high quality. It's perfect for real-time applications and consumer hardware.
How fast is FLUX.2 [klein]?
The distilled variants generate images in under 0.5 seconds on suitable hardware. With FP8 quantization, you can achieve even faster speeds—up to 2.7× faster than the base model. This makes real-time, interactive image generation possible.
Can I run it on my GPU?
The 4B distilled model requires about 13GB VRAM, making it compatible with GPUs like the RTX 3090, 4070, or better. The 4B base model uses even less—around 9-10GB. With quantization, you can reduce requirements further.
What's the difference between distilled and base?
Distilled variants use 4-step inference for sub-second generation, optimized for speed. Base variants use full inference steps, offering more output diversity and fine detail—ideal for fine-tuning or when you need maximum quality regardless of time.
Can I use FLUX.2 [klein] commercially?
The 4B variants (both distilled and base) are released under Apache 2.0 license, allowing full commercial use, fine-tuning, and local deployment. The 9B variants are under FLUX Non-Commercial License, restricted to research and personal projects.
Is FLUX.2 [klein] free on Red Panda AI?
Yes! Red Panda AI provides free access to FLUX.2 [klein] with no sign-up required. Experience lightning-fast AI image generation and editing without any cost or restrictions.

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