Black Forest Labs has released FLUX.2 [klein], a new series of compact models designed for fast, local image generation and editing, achieving sub-second speeds on consumer hardware.
This article was inspired by "FLUX.2 klein launch" from Hacker News.
Read the original source.Model: FLUX.2 [klein] | Parameters: 4B / 9B | Speed: 0.3-0.5s per image
VRAM: 8.4 GB (4B) / 19.6 GB (9B) | License: Apache 2.0 (4B) / Non-commercial (9B)
Sub-Second Generation on Consumer GPUs
The 4B variant of FLUX.2 [klein] generates 1024x1024 images in under one second, making it 30% faster than competing local solutions. It operates on an RTX 4070 or 3090 without requiring special optimizations. The 9B model prioritizes photorealism over speed, while both versions integrate text-to-image generation and direct image editing.
| Feature | FLUX.2 klein 4B | FLUX.2 klein 9B | Qwen-Image-Edit |
|---|---|---|---|
| Speed | 0.3s | 0.5s | ~2s |
| VRAM | 8.4 GB | 19.6 GB | 20+ GB |
| Editing | Yes | Yes | Yes |
| License | Apache 2.0 | Non-commercial | Open |
Why This Matters for Local Workflows
Local tools like Qwen-Image require 12-16 GB VRAM for text-to-image tasks, but editing capabilities have lagged in speed. Qwen-Image-Edit, with its 20B parameters, often takes longer than a second per operation. FLUX.2 [klein] addresses this by combining generation and editing in one responsive model, enabling real-time creative workflows.
Bottom line: First model to deliver both generation and editing under one second on consumer hardware.
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