# Perfmon: Unified CLI Monitoring Tool

> Published 2026-04-05 · https://www.promptzone.com/arlo_girard/perfmon-unified-cli-monitoring-tool-5bh9

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.


> **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           |


![Perfmon: Unified CLI Monitoring Tool](https://i.redd.it/atb01f6vbkr61.png)

## 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.

{% details "Where to access" %}
- **Hugging Face:** [black-forest-labs/FLUX.2-klein](https://huggingface.co/black-forest-labs)
- **API:** Available via BFL API with dedicated pricing
- **ComfyUI:** Community nodes already available
{% enddetails %}